CAN Test Box Quick Start User Guide CAN Test Box
NOTICE 1. Important: As active LED signals may have the potential to interfere with CAN data package signals we do not recommend the CTB be connected to late model CAN protocol vehicles under the following conditions: i. With a scan tool attached whilst driving the vehicle during or under road test conditions. ii. CTB left connected to the vehicle DLC OBDII connector while road testing or left connected to the vehicle for extended periods of time. 2.
CAN Test Box CTB components CTB Interface Inlay Panel LEDs (backlit, numbered & colour coded) Breakout Pin Connections (4 mm Jack) 2.
CAN Test Box CTB Interface Panel The interface panel utilises numbered backlit LEDs which illuminate when signal data is present on the corresponding LED line. Pulsing LEDs indicate signals being pulled alternately high and low. CTB LEDs correspond to vehicle DLC (Data Link Connector) Pins 1-16.
CAN Test Box CTB 2.5m Extension Cable DLC Fast Check OBD Connector The CTB utilises a 2.5 metre shielded extension cable with Fast Check ODB Connector. This allows the CTB to connect with the vehicle DLC for viewing and operation of the CTB away from enclosed areas. The CTB incorporates diode fuse protection for Pin 5 (Signal Ground) plus Polyswitch Fusing for Pins 4 & 16 (Chassis Ground & Batt+). CTB 2.
CAN Test Box CTB LED Monitoring Establish CTB LED display by connecting the CTB cable DLC to the vehicle DLC. Data signals present on the vehicle DLC will illuminate the corresponding CTB panel LEDs.
CAN Test Box CTB Scan Tool Pass-Thru Connector The CTB is equipped with a 16 pin Pass-Thru which allows the user to connect a scanner (generic or OEM) for the purpose of systems scan data monitoring or systems activation. Connect the CTB cable DLC to the vehicle DLC. Connect the scan tool cable DLC to the CTB Pass-Thru Connector.
CAN Test Box CTB Oscilloscope Connection The CTB allows the user to connect any compatible oscilloscope enabling the capture of oscilloscope waveforms of bus signal data. The CTB terminal pin ports are accessible with standard 4 mm jacks. The CTB Probe/Lead Kit utilises high-quality shielded probes and leads, 4 mm banana jacks (CTB connection) and standard BNC connectors (oscilloscope connection).
CAN Test Box CTB Oscilloscope Connection Connect the CTB cable DLC to the vehicle DLC. Connect one end of a CTB probe lead (BNC) to the oscilloscope. Connect the opposite end of the probe (4 mm jack) to the CTB Pin Port of the appropriate CTB LED selected for oscilloscope waveform data capture. Connect the probe ground (black lead) to CTB LED Pin Port either 4 (Chassis GND) or 5 (Signal GND). Power up the oscilloscope and set up the system as necessary for signal data gathering.
CAN Test Box CTB, Scan Tool and Oscilloscope Connections CAN Test Box Connection Schematic PC USB Connection USB Automotive Oscilloscope B A D C CAN Low Signal Ground CAN High Ground 1 5 9 13 2 6 10 14 3 7 11 15 4 8 12 16 Scan Tool Connection CAN Test Box WARNING! Vehicle DLC 10 Observe workshop safety practices
CAN Test Box OBD-II Connector Pin Designation 1 2 3 4 9 10 11 12 5 6 7 8 13 14 15 16 1 - Manufacturer’s Proprietary 2 - Bus+ Line of J1850 3 - Manufacturer’s Proprietary 4 - Chassis Ground 5 - Signal Ground 6 - CAN High of SAE of J2284 OBD II Connector Note: ISO9141-2 & ISO 14230 (keyword 2000) use the same pinout, so you cannot distinguish between the two by simply examining the connector. Connect and use the CTB.
May 2013 DO148-3
