Instructions / Assembly

ManualsBrandsAutel AutoLink ManualsTools & HardwareOBD ll Electrical Tool

Table of Contents

1. SAFETY PRECAUTIONS AND WARNINGS .............................................. 1

2. GENERAL INFORMATION .......................................................................... 2

2.1 ON-BOARD DIAGNOSTICS (OBD) II ............................................................. 2

2.2 DIAGNOSTIC TROUBLE CODES (DTCS) ........................................................ 2

2.3 LOCATION OF THE DATA LINK CONNECTOR (DLC) .................................... 3

2.4 OBD II READINESS MONITORS .................................................................... 4

2.5 OBD II MONITOR READINESS STATUS ......................................................... 5

2.6 OBD II DEFINITIONS .................................................................................... 6

2.7 OBD II MODES OF OPERATION .................................................................... 7

3. USING THE SCAN TOOL ............................................................................ 10

3.1 TOOL DESCRIPTION .................................................................................... 10

3.2 SPECIFICATIONS .......................................................................................... 12

3.3 ACCESSORIES INCLUDED............................................................................. 12

3.4 NAVIGATION CHARACTERS ........................................................................ 13

3.5 KEYBOARD .................................................................................................. 13

3.6 POWER AND CHARGE................................................................................... 13

3.7 DTC LOOKUP ............................................................................................. 15

3.8 SYSTEM SETUP ............................................................................................ 17

3.9 VEHICLE COVERAGE .................................................................................. 26

3.10 PRODUCT TROUBLESHOOTING.................................................................... 27

4. REVIEW DATA ............................................................................................. 29

5. OBDII DIAGNOSTICS ................................................................................. 30

5.1 READING CODES ......................................................................................... 32

5.2 ERASING CODES .......................................................................................... 34

5.3 LIVE DATA .................................................................................................. 36

5.4 VIEWING FREEZE FRAME DATA ................................................................. 48

5.5 RETRIEVING I/M READINESS STATUS ......................................................... 49

5.6 O2 MONITOR TEST ..................................................................................... 56

Summary of content (86 pages)

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Table of Contents 1. SAFETY PRECAUTIONS AND WARNINGS .............................................. 1 2. GENERAL INFORMATION .......................................................................... 2 2.1 ON-BOARD DIAGNOSTICS (OBD) II ............................................................. 2 2.2 DIAGNOSTIC TROUBLE CODES (DTCS) ........................................................ 2 2.3 LOCATION OF THE DATA LINK CONNECTOR (DLC) .................................... 3 2.
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5.7 ON-BOARD MONITOR TEST ........................................................................ 57 5.8 COMPONENT TEST ...................................................................................... 61 5.9 VIEWING VEHICLE INFORMATION .............................................................. 62 5.10 MODULES PRESENT .................................................................................... 64 6. READY TEST .........................................................................
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1. Safety Precautions and Warnings To prevent personal injury or damage to vehicles and/or the scan tool, read this instruction manual first and observe the following safety precautions at a minimum whenever working on a vehicle:           Always perform automotive testing in a safe environment. Wear safety eye protection that meets ANSI standards. Keep clothing, hair, hands, tools, test equipment, etc. away from all moving or hot engine parts.
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2. General Information 2.1 On-Board Diagnostics (OBD) II The first generation of On-Board Diagnostics (called OBD I) was developed by the California Air Resources Board (ARB) and implemented in 1988 to monitor some of the emission control components on vehicles. As technology evolved and the desire to improve the On-Board Diagnostic system increased, a new generation of On-Board Diagnostic system was developed. This second generation of On-Board Diagnostic regulations is called "OBD II".
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DTC Example P0202 Systems B=Body C=Chassis P=Powertrain U=Network Identifying specific malfunctioning section of the systems Code Type Generic (SAE): P0, P2, P34-P39 B0, B3 C0, C3 U0, U3. Manufacturer Specific: P1, P30-p33 B1, B2 C1, C2 U1, U2 Sub-systems 1= Fuel and Air Metering 2= Fuel and Air Metering 3= Ignition System or Engine Misfire 4= Auxiliary Emission Controls 5= Vehicle Speed Control and Idle Controls 6= Computer Output Circuits 7= Transmission Controls 8= Transmission Controls 2.
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2.4 OBD II Readiness Monitors An important part of a vehicle‟s OBD II system is the Readiness Monitors, which are indicators used to find out if all of the emissions components have been evaluated by the OBD II system. They are running periodic tests on specific systems and components to ensure that they are performing within allowable limits. Currently, there are eleven OBD II Readiness Monitors (or I/M Monitors) defined by the U.S. Environmental Protection Agency (EPA).
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The following monitors are to be used for spark ignition engines only: 1) 2) 3) 4) 5) 6) 7) EGR System O2 Sensors Catalyst Evaporative System O2 Sensor Heater Secondary air Heated Catalyst The following monitors are to be used for compression ignition engines only: 1) 2) 3) 4) 5) 6) EGR System NMHC Catalyst NOx aftertreatment Boost pressure system Exhaust gas sensor PM filter 2.
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to “Not Ready”. Since the three continuous monitors are constantly evaluating, they will be reported as “Ready” all of the time. If testing of a particular supported non-continuous monitor has not been completed, the monitor status will be reported as “Not Complete” or “Not Ready.” In order for the OBD monitor system to become ready, the vehicle should be driven under a variety of normal operating conditions.
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OBD II Drive Cycle -- A specific mode of vehicle operation that provides conditions required to set all the readiness monitors applicable to the vehicle to the “ready” condition. The purpose of completing an OBD II drive cycle is to force the vehicle to run its onboard diagnostics. Some form of a drive cycle needs to be performed after DTCs have been erased from the PCM‟s memory or after the battery has been disconnected.
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Mode $03 – Displays the type of powertrain or emission related DTCs stored by a 5 digit code identifying the faults. There may be more than one response message if there are more trouble codes than will fit in the data bytes of the response message, or if there are more than one ECU computer responding. Mode $04 – Used to clear DTCs and Freeze Frame data. This clears all diagnostic trouble codes that may be set including freeze frame data and readiness monitors. Mode $05 – Oxygen Sensor Test Results.
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Mode $08 – This special Control Mode requests control of the on-board system, test, or component bi-directionally (where applicable). This mode is manufacturer specific. Mode $09 – Reports vehicle information. This information includes vehicle VIN number and calibration information stored in the vehicle ECUs. Mode $0A – Request Emission-Related Diagnostic Trouble Codes with Permanent Status. This mode is required for all emissions-related DTCs.
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3. Using the Scan Tool 3.1 Tool Description 1) 2) 3) OBD II CONNECTOR – Connects the scan tool to the vehicle‟s Data Link Connector (DLC). LCD DISPLAY – Indicates test results. GREEN LED – Indicates that engine systems are running normally (The number of monitors on the vehicle which are active and performing their diagnostic testing is in the allowed limit, and no DTCs are present).
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4) YELLOW LED – Indicates there is a possible problem. A “Pending” DTC is present and/or some of the vehicle‟s emission monitors have not run their diagnostic testing. 5) RED LED – Indicates there is a problem in one or more of the vehicle‟s systems. The red LED is also used to show that DTCs are present. DTCs are shown on the Scan Tool‟s display. In this case, the MIL lamp on the vehicle‟s instrument panel will light steady on.
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recording customized live data list, and views next frames of data when playing back live data. DOWN SCROLL BUTTON – Moves down through menu and submenu items in menu mode. When more than one screen of data is retrieved, moves down through the current screen to next screens for additional data. 14) VΩ TERMINAL – Assists test as a positive lead. 13) 15) COM TERMINAL – Assists test as a ground lead. 16) USB CONNECTOR – Connects the scan tool to the PC for printing and upgrading.
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4) 5) 6) 7) USB cable -- Used to upgrade the scan tool, and to print retrieved data. 3.7V Li-ion battery – Provides power when disconnected with vehicle. Probes – Contacts the circuit or component to be tested. Protective Nylon Case – Contains the main unit and cables while not in use. 3.4 Navigation Characters Characters used to help navigate the scan tool are: 1) “$” -- Identifies the control module number from which data is retrieved. Indicates the Test ID in On-Board Mon. Test.
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 A plastic DLC cover may be found for some vehicles and you need to remove it before plugging the OBD2 cable. 3) Plug OBD II cable to the vehicle‟s DLC. When the scan tool is not connected to a vehicle, it can be powered in the other three ways. Auto power-off Solely powered up by Li-ion battery, the tool will automatically turn off after 15 minutes of inactivity.
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 Using vehicle DLC If you want to charge the tool with vehicle DLC, the detailed instructions are described as above (refer to the Power on instructions). Once connected, the Li-ion battery will be fully charged in about 2.5 hours. You can disconnect and use the tool before the battery is fully charged. You don't have to wait until the battery is completely empty before charging it again.
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2) From DTC Lookup screen, use the LEFT/RIGHT button to move to the desired character, use the UP/DOWN button to change selected digit/character and press the OK button to confirm. (Figure 3.2) DTC Lookup P0001 OK ESC Left Right Change digit Confirm Exit ［］［］- Change Digit ［ENTER］- Figure Confirm3.2 ［ESC］- Exit 3) View the DTC definition on screen. When DTC definition covers more than one screen, use the LEFT/RIGHT button or UP/DOWN button to view additional information on previous/next screens.
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6) To exit to Main Screen, press the ESC button. 3.8 System Setup The scan tool allows you to make the following adjustments and settings: 1) Language: Selects the desired language. 2) Configure Monitors: Sets the monitors you want to test. 3) Unit of measure: Sets the unit of measure to English or Metric. 4) Key Beep Set: Turns on/off beep. 5) Status Beep Set: Turns on/off the I/M Readiness Status beep. 6) Tool Self-test: Checks if the LCD display, LED lamps and keyboard are working normally.
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Language Setup  English is the default language. 1) From System Setup screen, use the UP/DOWN scroll button to select Language, and press the OK button. 2) Use the UP/DOWN scroll button to select the desired language and press the OK button to save your selection and return to previous screen. We provide three language options currently. Language  English  Français  Español 1/3 ? Figure 3.
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1) Spark IGN Required Monitors From Configure Monitors screen, use the UP/DOWN scroll button to select Spark IGN Required Monitors, and press the OK button. The monitors for spark ignition engines list as below: Spark IGN Required Monitors √ √ √ √ √ 2) √ √ √ √ √ MIS FUEL CCM CAT HCAT EVAP AIR O2S HTR EGR Compression IGN Required Monitors From Configure Monitors screen, use the UP/DOWN scroll button to select Compression IGN Required Monitors, and press the OK button.
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Emissions tests vary depending on the geographic or regional area in which the vehicle is registered. So the scan tool provides a more flexible way to meet different standards, which allows the user to select 0, 1, 2, 3 „not complete‟ monitors in test. 4) Reset Factory Default From Configure Monitors screen, use the UP/DOWN scroll button to select Reset Factory Default, and press the OK button.
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3) Press the OK button to save your selection and return to previous menu. Key Beep Set This function allows you to turn on/off the build-in speaker for key pressing.  The default setting is Beep On. 1) From System Setup screen, use the UP/DOWN scroll button to select Key Beep Set and press the OK button. 2) From Key Beep Set menu, use the UP/DOWN scroll button to select Beep ON or Beep OFF to turn on/off the beep. Key Beep Set 1/2  Beep ON  Beep OFF ? Figure 3.
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1) From System Setup screen, use the UP/DOWN scroll button to select Status Beep Set and press the OK button. 2) From Status Beep Set menu, use the UP/DOWN scroll button to select Beep ON or Beep OFF to turn on/off the beep. Status Beep Set 1/2  Beep ON  Beep OFF ? Figure 3.8 3) Press the OK button to save your selection and return to previous menu. Tool Self-test The Tool Self-test function checks if the display, LED lamps and keyboard are working properly. A.
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Tool Self-test 1/3 Display Test Keyboard Test LED Test ? Figure 3.9 3) 4) B. Look for missing spots in the red, green, blue, black and white LCD display. When completed, press the ESC button to exit. Keyboard Test The Keyboard Test function verifies if the keys are functioning properly. 1) Use the UP/DOWN scroll button to select Keyboard Test from the Tool Self-test menu, and then press the OK button. 2) Press any key to start test.
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lamps are functioning properly. 1) Use the UP/DOWN scroll button to select LED Test from the Tool Self-test menu, and then press the OK button. 2) In the LED Test menu, use the UP/DOWN scroll button to select one or more LED lamps to check. The LED should turn on or off according to the selected commands. LED Test 1/3 RED LED ON YELLOW LED ON GREEN LED ON Figure 3.11 3) When completed, press the ESC button to exit.
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4) From System Setup screen in scan tool, use the UP/DOWN scroll button to select Update Mode, and press the OK button. 5) Select the programs to be updated in your computer. There are two types of programs: operating system and DTC library. (Figure 3.12) 6) Click Update in the MaxiLink Tool Kit window to begin updating. Figure 3.12 7) During the update procedure, the scan tool displays a message “Update Program. Please wait…”.
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The Tool Information function allows viewing of some important information such as serial number and software version number of the scanner. 1) From System Setup screen, use the UP/DOWN scroll button to select Tool Information, and press the OK button; wait for the Tool Information screen to appear. 2) View tool information on screen. Figure 3.13 3.
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For your vehicle to be OBD II compliant it must have a 16-pin DLC (Data Link Connector) under the dash and the Vehicle Emission Control Information Label must state that the vehicle is OBD II compliant. 3.10 Product Troubleshooting This part describes problems that you may encounter while using the scan tool. Vehicle Linking Error A communication error occurs if the scan tool fails to communicate with the vehicle‟s ECU (Engine Control Unit).
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 Check if the DLC pins are bent or broken. Clean the DLC pins if necessary.  Check vehicle battery to make sure it is still good with at least 8.0 volts. LED lamps not working If you turn on the scan tool and perform the I/M Readiness test but the LED lamps are not working, there may be several possible causes, including bad connection and ignition off. In this case, follow these steps to check the scan tool.  Make sure the cable is connected to the DLC securely.
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4. Review Data The Review Data function allows viewing of data from last test recorded by the scan tool. 1) Use the UP/DOWN scroll button and LEFT/RIGHT scroll button to select Review Data from Main Screen, and press the OK button. (Figure 3.1) 2) Use the UP/DOWN scroll button to select the desired item from Review Data menu, and press the OK button. (Figure 4.1 ) Review Data 1/6 Live Data Pending Codes View Freeze Frame I/M Readiness On-Board Mon. Test Modules Present ? Figure 4.
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5. OBDII Diagnostics When more than one vehicle control module is detected by the scan tool, you will be prompted to select the module where the data may be retrieved. The most often to be selected are the Power train Control Module [PCM] and Transmission Control Module [TCM]. CAUTION: Don’t connect or disconnect any test equipment with ignition on or engine running. 1） 2） 3） 4） 5） Turn the ignition off. Locate the vehicle‟s 16-pin Data Link Connector (DLC).
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 Review previously stored data thoroughly before erasing. Diagnostic Erase previously stored data to save data from this test? YES NO Figure 5.1  If no data is stored in the scan tool, above prompt will not show up. 8） If you wish to erase the data, press the OK button; if you do not want to erase the data, press ESC to exit or use LEFT/RIGHT button to select NO and press OK to continue. 9） View a summary of system status (MIL status, DTC counts, Monitor status) on screen. (Figure 5.
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Control Module 1/2 Engine Module $A4 Figure 5.3  Use the UP/DOWN scroll button to select a module and press the OK button. 5.1 Reading Codes  Reading Codes can be done with the key on engine off (KOEO) or with the key on engine running (KOER).  Stored Codes are also known as “hard codes”, which are fault codes, or trouble codes that have been stored in the vehicle computer memory because the faults have reoccurred for more than a specified amount of key-cycles.
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1) Use UP/DOWN scroll button to select Read Codes from Diagnostic Menu and press OK button. Diagnostic Menu 1/11 Read Codes Erase Codes Live Data View Freeze Frame I/M Readiness O2 Monitor Test ? Figure 5.4 2) Use the UP/DOWN scroll button to select Stored Codes or Pending Codes from the Read Codes menu and press the OK button. Read Codes 1/3 Stored Codes Pending Codes Permanent Codes ? Figure 5.
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1/1 P1633 $10 BUICK Ignition 0 Switch Circuit Figure 5.6 4) If more than one DTC is found, use the LEFT/RIGHT scroll button to check all the codes.  If retrieved DTCs contain any manufacturer specific or enhanced codes, a “Manufacturer specific codes are found! Press any key to select vehicle make!” message comes up prompting you to select vehicle manufacturer to view DTC definitions. Use UP/DOWN scroll button to select manufacturer and then press OK button to confirm.
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enhanced data. Further, the I/M Readiness Monitor Status for all vehicle monitors is reset to Not Ready or Not Complete status. Do not erase the codes before the system has been checked completely by a technician. NOTE: Erasing codes does not mean that trouble codes in ECU have been eliminated completely. As long as there is fault with the vehicle, the trouble codes keeps on presenting.  This function is performed with key on engine off (KOEO). Do not start the engine.
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Erase Codes Erase Done! Press any key to con. Figure 5.9  If the codes are not cleared, then an “Erase Failure. Turn Key on with Engine off!” message appears. Erase Codes Erase Failure. Turn Key on with Engine Off! Press any key to con. Figure 5.10 4) Press any button to return to Diagnostic Menu. 5.3 Live Data In this function, you can not only read the live data but also record data for later review.
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2) Wait a few seconds while the scan tool validates the PID MAP. (Figure 5.11) Live Data Reading PID.01 - Please Wait - Figure 5.11 3) Use the UP/DOWN scroll button to select View Data from Live Data menu and press the OK button. ……………… .Live Data View Data Record Data Playback Data 1/3. ? Figure 5.12 Viewing Complete Data Set 1) To view complete set of data, use UP/DOWN scroll button to select Complete Data Set from View Data menu and press the OK button.
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…………………View Data 1/3. Complete Data Set Custom Data Set Unit of Measure ? Figure 5.13 2) View live PIDs on the screen. Use the UP/DOWN scroll button for more PIDs if additional information is available on more than one page. Live Data DTC_CNT FUELSYS1 FUELSYS2 LOAD_PCT (%) ETC(℃) SHRTFT1 (%) 6 0 0L -- ? 0.0 -40 99.2 Figure 5.14   The number “x” to the right of the screen indicates sequence of the highlighted item. If the “G” icon appears when a PID is highlighted, graphic information is available.
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Figure 5.15 3) Press the ESC button to return to previous menu. Viewing Custom Data Set 1) To view customized PID data, use the UP/DOWN scroll button to select Custom Data Set from View Data menu and press the OK button. (Figure 5.13) 2) Observe on-screen instructions. ……………Custom Data Set……… ….. [ ] – Select/Deselect [ ] – Deselect all [OK] – Confirm [ESC] – Cancel Press any key to continue. Figure 5.
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…………..Custom Data Set       DTC_CNT FUELSYS1 FUELSYS2 LOAD_PCT ECT SHRTFT1 4/26 #01 ? Figure 5.17   The number “x” to the upper right corner of the screen indicates sequence of highlighted item; and “#x” are the order that the parameters are selected and will be displayed. If you want to deselect all marked items or select all items, press the LEFT button. A message comes up to ask for your confirmation. ………………Deselect All…………………. Deselect all selected PID’s? YES NO Figure 5.
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………………….Live Data DTC_CNT FUELSYS2 ETC(℃) SHRTFT1 (%) 4. 0 0L -40 99.2 Figure 5.19 5) Use the ESC button to return to previous menu. Recording Data The Record Data function allows recording vehicle modules’ Parameter Identification (PID) data to help diagnose intermittent vehicle problems. A recording includes 5 frames of live data before trigger event and several frames after trigger event. There are two trigger modes used to record data: A.
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………………..Record Data Complete Data Set Custom Data Set Unit of Measure 1/3.. ? Figure 5.20 2) Use the UP/DOWN scroll button to select a trigger mode and press the OK button. …….……Pick Trigger Mode 1/2 Manual Trigger DTC Trigger ? Figure 5.21  3) If data from previously tested vehicle is not erased, data from current test will be stored in a temporary cache. Use the UP/DOWN scroll button to select a memory location and press the OK button. …………….
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  The asterisk (*) icon on the screen indicates that there is a previous recording in the memory location. If you select a location marked with an asterisk (*) icon, a message prompting to overwrite old recording displays. Select Memory ... A previous recording exists! Do you want to overwrite it? YES NO Figure 5.
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………………….DTC Trigger…………….. Waiting for DTC to trigger recording… Press [ESC] to exit Figure 5.25 5) Wait for DTC to trigger recording or press OK to start recording. (Figure 5.26)  Drive till a DTC is detected when DTC Trigger is selected. If no DTCs are detected, press ESC to exit recording. …….Recording…. DTC_CNT FUELSYS1 FUELSYS2 LOAD_PCT(%) ETC(℃) SHRTFT1(%) 5/46 ….. 0 0L -- ? 0.0 -40 99.2 Figure 5.26  6) The number “x/x...
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Record Data Recording Done! Playback data? YES NO Figure 5.27  If you wish to playback recorded data, press the OK button; if you do not wish to playback, press the ESC button, or use LEFT/RIGHT button to select NO and press the OK button to return to Record Data menu. Recording Custom Data Set 1) To record customized data, use the UP/DOWN scroll button to select Custom Data Set from Record Data menu and press the OK button. (Figure 5.20) 2) Observe on-screen instructions. (Figure 5.16).
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4) Use the UP/DOWN scroll button to select a trigger mode and press the OK button.( Figure 5.21)  5) Use the UP/DOWN scroll button to select a memory location and press the OK button.( Figure 5.22)    6) If data from previously tested vehicle is not erased, data from current test will be stored in temporary cache. The asterisk (*) icon on the screen indicates that there is a previous recording in the memory location.
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Playback Data The Playback Data function allows viewing of previously stored PID data. 1) To playback recorded data, use the UP/DOWN scroll button to select Playback Data from Live Data menu and press the OK button. (Figure 5.12)  2) You are also allowed to playback recorded data immediately after recording. Use the UP/DOWN button to select the memory location marked with an asterisk (*) icon. Select Memory Location #1 Location #2 Location #3 3/3 * * ? Figure 5.
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4) Use the LEFT/RIGHT button to view PIDs of next or previous frames. 6 of 135 frame DTC_CNT FUELSYS1 FUELSYS2 LOAD_PCT(%) ETC(℃) SHRTFT1(%) 0 OL N/A 0.0 -40 99.2 4 ? Figure 5.30 5.4 Viewing Freeze Frame Data Freeze Frame Data allows the technician to view the vehicle‟s operating parameters at the moment a DTC (Diagnostic Trouble Code) is detected. For example, the parameters may include engine speed (RPM), engine coolant temperature (ECT), or vehicle speed sensor (VSS) etc.
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…………View Freeze Frame DTCFRZF FUELSYS1 FUELSYS2 LOAD_PCT (%) ECT(℃) SHRTFT1 (%) P1633 OL -0.0 -40 99.2 2. ? Figure 5.31  4) If there is no freeze frame data available, an advisory message “No freeze frame data stored!” shows on the display. If you want to view full name of a PID, use the UP/DOWN scroll button to select the PID, and press the HELP button. ……………… ..FUELSYS1……… ……. Fuel System 1 Status Figure 5.32 5) Press ESC button to return to previous screen. 5.
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complete drive cycle with no trouble codes in memory. Times for reset vary depending on vehicle. Some latest vehicle models may support two types of I/M Readiness tests: A. B. Since DTCs Cleared - indicates status of the monitors since the DTCs are erased. This Drive Cycle - indicates status of monitors since the beginning of the current drive cycle. An I/M Readiness Status result of “NO” does not necessarily indicate that the vehicle being tested will fail the state I/M inspection.
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Figure 5.33 “OK” -- Indicates that a particular monitor being checked has completed its diagnostic testing. “INC” -- Indicates that a particular monitor being checked has not completed its diagnostic testing. “N/A” -- The monitor is not supported on the vehicle. The green, yellow and red LEDs provide a quick way to help you determine if a vehicle is ready for an Emission Test.
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 If a “Stored” Diagnostic Trouble Code is causing the Yellow LED to light, it is still possible that the vehicle will be allowed to be tested for emissions and certified.  If a “Pending” Diagnostic Trouble Code is causing the Yellow LED to light, it is still possible that the vehicle will be allowed to be tested for emissions and certified.
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 Take the vehicle to a professional to have it serviced. The problem(s) causing the red LED to light must be repaired before the vehicle is ready for an Emissions Test. Audio Tone Interpretation The audio tone is configured according to the I/M Readiness Status. This function is invaluable when performing diagnostics and driving at the same time , or working in bright areas where LED illumination alone is not sufficient.
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……………I/M Readiness 1/2. Since DTCs Cleared This Drive Cycle Figure 5.34 4) Use the UP/DOWN scroll button, as necessary, to view the status of the MIL light (“ON” or “OFF) and the following monitors.
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…………Since DTCs Cleared MIL Status Misfire Monitor Fuel System Mon Comp. Component Catalyst Mon Htd Catalyst OFF OK OK OK INC N/A 1 ? Figure 5.35 5) If the vehicle supports readiness test of “This Drive Cycle”, a screen of the following displays: …………..This Drive Cycle MIL Status Misfire Monitor Fuel System Mon Comp. Component Catalyst Mon Htd Catalyst OFF OK N/A OK INC N/A 1. ? Figure 5.36 6) The LEDs and audio tone corresponding to different monitor status will be activated as below.
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8) Press the ESC button to return to Diagnostic Menu. 5.6 O2 Monitor Test OBD2 regulations set by SAE require that relevant vehicles monitor and tests on the oxygen (O2) sensors to identify problems related to fuel efficiency and vehicle emissions. These tests are not on-demand tests and they are done automatically when engine operating conditions are within specified limits. These test results are saved in the on-board computer's memory.
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 If the vehicle does not support the mode, an advisory message will be displayed on the screen. …………….O2 Monitor Test………….. The selected mode is not supported! Figure 5.38 4) View test results of selected O2 sensor. … ……….O2 Bank1 Sensor2 1/31. Rich-Lean Threshd V Lean-Rich Threshd V Low for Switch (V) High for Switch (V) Rich-Lean Threshd S Lean-Rich Threshd S Figure 5.39 5) Use the UP/DOWN scroll button to view more screens of data if additional information is available in more than one page.
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test results for emission-related power train components and systems that are and are not continuously monitored. The scan tool allows access to the results of on-board diagnostic monitoring tests for specific components/systems. The vehicle manufacturer is responsible for assigning "Manufacturer Defined Test IDs" and Component IDs for tests of different systems and components. The advanced feature of this scan tool enables you to read the definition of an On-Board Diagnostic Monitor ID.
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On-Board Mon. Test 1/19 HO2S Monitor HO2S Monitor Catalyst Monitor EVAP Monitor EVAP Monitor EVAP Monitor Figure 5.41 5) From On-Board Mon. Test menu, use the UP/DOWN scroll button to select a test to view and press the OK button. Or, use the LEFT/RIGHT scroll button to view previous/next screen of test items.  If the vehicle under test does not support the mode, an advisory message will be displayed on the screen. On-Board Mon. Test The selected mode is not supported Press any key to con.. Figure 5.
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6) Use the UP/DOWN scroll button to select the desired monitor from On-Board Mon. Test menu and press the OK button. 7) View test data on screen. HO2S11 Voltage amplitu ID MOD TEST(volts) MIN(volts) MAX(volts) STS 11 $10 400 1E1 ----OK ? Figure 5.44 NOTE: If the On-Board Monitor Test failed, this monitor item will be red color. Just by the text color you may easily find out which system is at fault. EVAP monitor Phase 0 Initial tank vacuum an.. Figure 5.
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8) Press ESC button to return to the previous menus. 5.8 Component Test The Component Test function allows initiating a leak test for the vehicle's EVAP system. The scan tool itself does not perform the leak test, but commands the vehicle's on-board computer to start the test. Different vehicle manufacturers might have different criteria and methods for stopping the test once it has been started. Before starting the Component Test, refer to the vehicle service manual for instructions to stop the test.
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 Some vehicles do not allow scan tools to control vehicle systems or components. If the vehicle under test does not support the EVAP Leak Test, an advisory message is displayed on the screen. .............Component Test The selected mode is not supported Press any key to con. Figure 5.49 4) Wait a few seconds or press any key to return to previous screen. 5.9 Viewing Vehicle Information The Vehicle Info. function enables retrieval of Vehicle Identification No. (VIN), Calibration ID Nos.
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3) Wait a few seconds while the scan tool reads vehicle information. Vehicle Info. Reading info… - Please Wait - Figure 5.51  If the vehicle does not support this mode, a message shows on the display warning that the mode is not supported. 4) From Vehicle Info. Menu, use the UP/DOWN scroll button to select an available item to view and press the OK button. Vehicle Info. 3/3 Vehicle ID Number Calibration ID Cal. Verf. Number ? Figure 5.52 5) View retrieved vehicle information on screen. Cal. Verf.
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5.10 Modules Present The Modules Present function allows viewing of the module IDs and communication protocols for OBD2 modules in the vehicle. 1) Use the UP/DOWN scroll button to select Modules Present from Diagnostic Menu and press OK button. (Figure 5.4) 2) View modules present with their IDs and communication protocols. Modules Present ID Protocol _________________________ $00 ISO 9141-2 ? Figure 5.
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6. Ready Test This function can be used as a convenient readiness test tool by automotive technicians to determine if the tested vehicle is ready for an emission test. By visual and audible indication, you will learn a vehicle’s monitors readiness. 6.1 General Information Repairs to the emissions-control systems of a 1996 or newer vehicle cause the vehicle‟s computer (ECU) memory to be cleared.
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The purpose of this function is to indicate which of the vehicle‟s monitors have run and completed their diagnosis and testing, and which ones have not yet run and completed testing and diagnosis of their designated sections of the vehicle‟s emission system. All data shows on one screen, which provides a simple profile of vehicle at a glance, saving diagnosis time and improving technician productivity.
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2) After the erase procedure is performed, status of most monitors will be changed. Leave the scan tool connected to the vehicle, and select Ready Test from Main Screen. 3) Keep on driving the car till the scan tool notifies you safely with color LEDs and audible tone that the drive cycle has been completed and the vehicle is ready, eliminating drive cycle guesswork and confirming readiness status.
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NOTE: This function reads off the real time data of emission-related monitoring systems readiness status. Once the scan tool has finished other operations, for example, clearing trouble codes, the I/M Readiness Monitor Status program resets status of all the monitors to “INC” condition. In order to set these monitors to a Ready status, the vehicle must be driven through a complete drive cycle. Times for reset vary depending on vehicle.
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“INC” -- Indicates that a particular monitor being checked has not completed its diagnostic testing. “N/A” -- The monitor is not supported on the vehicle. The LED and audio tone indications are interpreted as below: LED Interpretation The green and red LEDs provide an easy way to check if emission-related monitoring systems complete their self-diagnostic testing. 1) GREEN LED – Your vehicle is Ready.
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7. Circuit Test function This function is specially designed to diagnose the vehicle electrical system, including DC or AC voltage test, resistance test. NOTE: Circuit Test function is only available when the tool is powered by 3.7V lithium battery solely. Otherwise, it will cause incorrect results and damage the tool. Use the UP/DOWN scroll button to select Circuit Test from Main Menu in the scan tool, and press the OK button. (Figure 3.1)  The default mode is AUTO. 7.
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Figure 7.2 7.3 Resistance While the tool in this mode, contact the probes to a circuit, then the LCD display will read the resistance between these two probes. The range the tool can test is 500Ω . When the test result is out of range, the tool displays “0L”. Figure 7.3 NOTE: If the resistance of circuit is less than 50 ohm, the scan tool would display as below and a beep would be heard.
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Figure 7.4 7.4 AUTO While the tool in this mode, contact the probes to a circuit. According to different circuit situations, the tool will select the corresponding functions independently.
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8. Start Test 8.1 Starter Test The function of a vehicle's starting system is to rotate the engine's crankshaft fast enough so that combustion can take place, and the engine can begin to run under its own power. This system is commonly referred to as the "cranking system". Providing the cranking power needed for reliable engine starts requires all starting system components to be in good working order.
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2. Check state-of-charge of battery. For accurate cranking voltage test results, the battery must be at least 75 percent charged. 3. Make sure the handbrake on and the gear is on N or P. STARTER TEST PROCEDURE There are two ways to do this test. A. Connecting to DLC with OBDII connector. B. Connecting to battery with probes. Follow the steps to complete the test: 1. Perform PRETEST. 2. Turn off all of the vehicle's electrical accessories. 3.
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Figure 8.2 7. Start engine and begin the test. There may be five test results. Table 1: Starter System Decisions and Recommendations Decision Action CRANKING NORMAL The starter voltage is normal and the starting system is OK. (Figure 8.3) CRANKING ABNORMAL The vehicle can’t start and there is a problem with the starting system. Check the battery, connection, wiring and starter. (Figure 8.4) CRANKING LOW The starter voltage is low and you’d better check the starter system before a problem happens.
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NO START If you didn’t start engine to continue the test, the scan tool wait for two minutes and abort the test. (Figure 8.7) Figure 8.3 Figure 8.4 Figure 8.5 Figure 8.6 Figure 8.
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8. Press OK button to do the test again. The scan tool will prompt you to shutdown the engine. Figure 8.8 9. Follow the steps above to do the test again.  If the scan tool doesn‟t connect to vehicle or battery, it will display a message as below. Check that OBDII connector is securely connected to the DLC, or battery contact is clean and wellconnected, then continue the test procedure. Figure 8.9 8.
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and the engine will under-perform, reducing horsepower and gas mileage. To ensure the battery will remain charged to start the vehicle and power the accessories while it's running, test the integrity of the 12-volt charging system periodically. Before starting the test, inspect the alternator drive belt. A belt that is glazed or worn, or lacks the proper tension, will prevent the engine from achieving the RPM levels needed for the test. CHARGING SYSTEM TEST PROCEDURE There are two ways to do this test. A.
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5. Start the engine and keep it running at 2000 rpm for over 15 seconds. Then press OK button and the scan tool will show as below. Figure 8.11 6. Follow the instructions to hold the engine rpm and turn on high beams and blower motor. Then press OK button. 7. The scan tool starts to record the charging voltage with loads on. There may be four test results. Table 2: Charging System Decisions and Recommendations Decision NORMAL Action The charging system is showing normal output. No problem detected.
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LOW OUTPUT There is a problem with the charging system. The alternator is not providing enough current to power the system’s electrical loads and charge the battery. (Figure 8.13)  Check the belts to ensure the alternator is rotating with the engine running. Replace broken or slipping belts and retest.  Check the connections from the alternator to the battery. If the connection is loose or heavily corroded, clean or replace the cable and retest. There is a problem with the charging system.
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EXCESSIVE RIPPLE One or more diodes in the alternator aren’t functioning or there’s stator damage, which is shown by an excessive amount of AC ripple current supplied to the battery. (Figure 8.15)  Make sure the alternator mounting is sturdy and that the belts are in good shape and functioning properly.  If the mounting and belts are good, check the alternator. Figure 8.12 Figure 8.13 Figure 8.14 Figure 8.
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9. Print Data The Print Data function allows printing out diagnostic data recorded by the scan tool or customized test reports.  To print out retrieved data, you need the following tools: AutoLink AL439 scan tool A PC or laptop with USB ports A USB cable 1) Install Maxi-Link applications through the included CD, or downloading the applications from our website: www.auteltech.com or our distributors‟ site. 2) Connect the scanner to computer with the USB cable supplied.
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Print Data Stored Codes Pending Codes Live Data Freeze Frame I/M Readiness O2 Sensor Test Print All Data 1/9 ? Figure 9.2  To print all retrieved data, use the UP/DOWN scroll button to select Print All Data from Print Data menu. 6) Press the OK button to upload data to the computer. 7) In the Maxi-Link Tool Kit, you could edit, delete, copy and print the data in the textbox by selecting the icons on the upper right of window. Print data. Delete data. Copy data. Edit data.
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10. Warranty and Service 10.1 Limited One Year Warranty Autel warrants to its customers that this product will be free from all defects in materials and workmanship for a period of one (1) year from the date of the original purchase, subject to the following terms and conditions: 1) The sole responsibility of Autel under the Warranty is limited to either the repair or, at the option of Autel, replacement of the scan tool at no charge with Proof of Purchase. The sales receipt may be used for this purpose.