Pinpoint Test 2: The ABS Module Does Not Respond To The Scan Tool

PINPOINT TEST 2: THE ABS MODULE DOES NOT RESPOND TO THE SCAN TOOL

Normal Operation

The ABS module communicates with the scan tool through the high speed controller area network (HS-CAN). Circuits (W/L) (HS-CAN +) and (W) (HS-CAN -) provide the network connection to the ABS module. The ABS module shares the HS-CAN network with the PCM, the 4X4 module, the instrument cluster (IC), the restraints module (RCM), the power steering module (PSCM) and the occupant classification sensor module (OCSM). Voltage for the ABS module is provided by circuits (GY), (R) and (Y/R). Ground is provided by circuit (B/G).

Possible Causes
- Fuse
- Wiring, terminals or connectors
- ABS module

Diagnostic Procedure

CAUTION:Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE:Failure to disconnect the battery when instructed will result in false resistance readings. See Battery Disconnect.