Table of Contents 1. 2. 3. 4. 5. 6. SAFETY PRECAUTIONS AND WARNINGS .............................................. 1 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.
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.
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".
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.
the connector. If the DLC cannot be found, refer to the vehicle‟s service manual for the location. 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.
operated under specific conditions before the monitor is ready. These monitors are termed non-continuous monitors. For different ignition type engines, the available monitors are different too.
or “Complete”, it will remain in this state. A number of factors, including erasing of diagnostic trouble codes (DTCs) with a scan tool or a disconnected battery, can result in Readiness Monitors being set 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.
require the vehicle to follow a prescribed “drive cycle” routine as part of the enabling criteria. Drive cycles vary among vehicles and for each monitor in any particular vehicle. 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.
Mode $02 - Displays Freeze Frame data. Same data as in mode 1, but it was captured and stored when a malfunction occurred and a DTC was set. Some of the PIDs for mode one are not implemented in this mode. 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.
used by service technicians to verify repair was performed properly and after clearing diagnostic trouble codes. 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.
3. Using the Scan Tool 3.1 Tool Description ① OBD II CONNECTOR – Connects the scan tool to the vehicle‟s Data Link Connector (DLC). ② LCD DISPLAY – Indicates test results. ③ 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).
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.
2) 3) OBD2 cable -- Provides power to tool and communicates between tool and vehicle. USB cable -- Allows easy update via a PC and an internet connection. 3.4 Navigation Characters Characters used to help navigate the scan tool are: 1) “#” -- Identifies the control module number from which data is retrieved. 2) “Pd” – Identifies a pending DTC when viewing DTCs. 3.5 Keyboard No solvents such as alcohol are allowed to clean the keypad or display. Use a mild nonabrasive detergent and a soft cotton cloth.
6) 7) Tool Self-test: Checks if the LCD display, LED lamps and keyboard are working normally. Update Mode: Accesses the Update Mode. Settings of the unit will remain until change to the existing settings is made. To enter the Setup menu When the scan tool is powered on, it displays a Main Screen. (Figure 3.1) Figure 3.1 From the Main Screen: Use the SCROLL button to select Setup, and press the ENTER/Exit button.
Language Setup English is the default language. 1) From System Setup screen, use the SCROLL button to select Language, and press the ENTER/Exit button. 2) Use the SCROLL button to select the desired language and press the ENTER/Exit R button to save your selection and return to previous screen. We provide three language options currently. (Figure 3.3) Language 1/3 English Français Español Figure 3.
1) Allowed INC Monitors From Configure Monitors screen, use the SCROLL button to select Allowed INC Monitors, and press the ENTER/Exit button. 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.
Unit of Measure 1/2 English Metric Figure 3.5 3) Press the ENTER/Exit 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 SCROLL button to select Key Beep Set and press the ENTER/Exit button. 2) From Key Beep Set menu, use the SCROLL button to select Beep ON or Beep OFF to turn on/off the beep.
Status Beep Set The default setting is Beep On. This function allows you to turn on/off the build-in speaker for the LEDs in diagnostic testing. Different audio tone corresponds to different LED lamp. This function is invaluable when working in bright areas where LED illumination alone is not sufficient. 1) From System Setup screen, use the SCROLL button to select Status Beep Set and press the ENTER/Exit button.
2) Select Display Test from Tool Self-test menu and press the ENTER/Exit button to start test. Tool Self-test 1/4 Display Test Keyboard Test LED Test Previous Menu Figure 3.8 3) 4) B. Look for missing spots in the red, green, blue, black and white LCD display. When completed, press the ENTER/Exit button to exit. Keyboard Test The Keyboard Test function verifies if the keys are functioning properly.
C. LED Test The LED Test function verifies if the I/M Readiness LED indicator lamps are functioning properly. 1) Use the SCROLL button to select LED Test from the Tool Self-test menu, and then press the ENTER/Exit button. 2) In the LED Self-test menu, use the SCROLL button to select one or more LED lamps to check. The LED should turn on or off according to the selected commands. LED Self-test 1/4 RED LED ON YELLOW LED ON GREEN LED ON Previous Menu Figure 3.
4) From System Setup screen in scan tool, use the SCROLL button to select Update Mode, and press the ENTER/Exit button. 5) Select the programs to be updated in your computer. There are two types of programs: operating system and DTC library. (Figure 3.11) 6) Click Update in the MaxiLinkII Tool Kit window to begin updating. Figure 3.11 7) During the update procedure, the scan tool displays a message “Update Program. Please wait…”.
To exit the Setup menu Use the SCROLL button to select Previous Menu from the System Setup screen, and press the ENTER/Exit button to return to Main Screen. 3.8 About The About function allows viewing of some important information such as serial number and software version number of the scanner. 1) From Main Screen, use the SCROLL button to select About and press the ENTER/Exit button; wait for the About screen to appear. (Figure 3.1) 2) View tool information on screen. Figure 3.12 3.
compliant, check the Vehicle Emissions Control Information (VECI) Label which is located under the hood or by the radiator of most vehicles. If the vehicle is OBD II compliant, the label will designate “OBD II Certified”. Additionally, Government regulations mandate that all OBD II compliant vehicles must have a “common” sixteen-pin Data Link Connector (DLC).
Scan tool doesn’t power up If the scan tool won‟t power up or operates incorrectly in any other way, you need to do the following to check up: Check if the scan tool‟s OBD II connector is securely connected to the vehicle‟s DLC; 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.
4. 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).
7） View a summary of system status (MIL status, DTC counts, Monitor status) on screen. (Figure 4.1 ) Wait a few seconds or press any key for Diagnostic Menu (Figure 4.3) to come up. System Status Codes Found Ignition Type Monitors N/A Monitors OK Monitors INC 6 Spark 3 3 5 Figure 4.1 If more than one module is detected, you will be prompted to select a module before testing. (Figure 4.2 ) Control Module 1/2 Engine Module $A4 Figure 4.
the control module to illuminate the malfunction indicator light (MIL) when emission-related fault occurs. Pending Codes are also referred to as “maturing codes” or “continuous monitor codes”. They indicate problems that the control module has detected during the current or last driving cycle but are not considered serious yet. Pending Codes will not turn on the malfunction indicator lamp (MIL). If the fault does not occur within a certain number of warm-up cycles, the code clears from memory.
Read Codes 1/4 Stored Codes Pending Codes Permanent Codes Previous Menu Figure 4.4 If there is not any Diagnostic Trouble Code, the display indicates “No (pending) codes are stored in the module!” Wait a few seconds or press any key to return to previous screen. NOTE: Permanent Codes function is available for merely vehicles supporting the CAN protocols. 3) View DTCs and their definitions on screen. Press ENTER/Exit button to return to previous screen.
Press any key to select vehicle make!” message comes up prompting you to select vehicle manufacturer to view DTC definitions. Use SCROLL button to select manufacturer and then press ENTER/Exit button to confirm. Vehicle Manufacturer 1/28 BUICK BMW CADILLAC CHEVROLET CHRYSLER FORD Figure 4.6 5) If the manufacturer of your vehicle is not listed, use the SCROLL button to select Other and press the ENTER/Exit button.
1) Use the SCROLL button to select Erase Codes from Diagnostics Menu and press the ENTER/Exit button. (Figure 4.3) 2) A warning message comes up asking for your confirmation. Erase Codes Erase trouble codes! Are you sure? YES NO Figure 4.7 If you do not want to proceed with erasing codes, use SCROLL button to select NO to exit. A message of “Command Cancelled!” show ups. Wait a few seconds or press any key to return to Diagnostic Menu. 3) Press the ENTER/Exit button to confirm.
Erase Codes Erase Failure. Turn Key on with Engine Off! Press any key to con. Figure 4.9 4.3 Live Data The function allows viewing of live or real time PID data of vehicle’s computer module(s). 1) To view live data, use the SCROLL button to select Live Data from Diagnostic Menu and press the ENTER/Exit button. (Figure 4.3) 2) Wait a few seconds while the scan tool validates the PID MAP. Live Data Reading PID.01 - Please Wait - Figure 4.
…………………View Data 1/3. Complete Data Set Unit of Measure Previous Menu Figure 4.11 4) View live PIDs on the screen. Use the 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 4.12 The number “x” to the right of the screen indicates sequence of the highlighted item. 5) Press the ENTER/Exit button to return to previous menu.
(VSS) etc. This information will aid the technician by allowing the parameters to be duplicated for diagnostic and repair purposes. 1) To view freeze frame data, use the SCROLL button to select View Freeze Frame from Diagnostic Menu and press the ENTER/Exit button. (Figure 4.3) 2) Wait a few seconds while the scan tool validates the PID MAP. 3) If retrieved information covers more than one screen, use the SCROLL button, as necessary, until all the data have been shown up.
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. Since DTCs Cleared - indicates status of the monitors since the DTCs are erased. B. 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.
Figure 4.14 “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.
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.
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.
……………I/M Readiness 1/2. Since DTCs Cleared This Drive Cycle Figure 4.15 4) Use the SCROLL button, as necessary, to view the status of the MIL light (“ON” or “OFF) and the following monitors.
…………Since DTCs Cleared MIL Status Misfire Monitor Fuel System Mon Comp. Component Catalyst Mon Htd Catalyst 1 OFF OK OK OK INC N/A Figure 4.16 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 1. OFF OK N/A OK INC N/A Figure 4.17 6) The LEDs and audio tone corresponding to different monitor status will be activated as below.
4.6 Viewing Vehicle Information The Vehicle Info. function enables retrieval of Vehicle Identification No. (VIN), Calibration ID Nos. (CINs), Calibration Verification Nos. (CVNs) and In-use Performance Tracking on 2000 and newer vehicles that support Mode 9. 1) Use SCROLL button to select Vehicle Info. from the Diagnostic Menu and press ENTER/Exit button. (Figure 4.3) 2) An advisory message comes up to remind you. Wait a few seconds or press any key to continue. Vehicle Info.
Vehicle Info. 3/4 Vehicle ID Number Calibration ID Cal. Verf. Number Previous Menu Figure 4.20 5) View retrieved vehicle information on screen. Cal. Verf. Number CVN1: BB BA A0 78 Figure 4.21 6) Select Previous Menu from the Vehicle Info screen, and press ENTER/Exit button to return to the previous menu. 4.7 Exiting the OBDII Test 1) To exit OBDII test, use SCROLL button to select Previous Menu from Diagnostic Menu and press ENTER/Exit button. (Figure 4.
5. 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. 5.1 General Information Repairs to the emissions-control systems of a 1996 or newer vehicle cause the vehicle‟s computer (ECU) memory to be cleared.
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. Use the SCROLL button to select Ready Test from Main Screen (Figure 5.
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.
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.
“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. Indicates that engine systems are “OK” and operating normally (the number of Monitors supported by the vehicle which have run and performed their self-diagnostic testing is in the allowed limit).
6. Warranty and Service 6.1 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.
