Pinpoint Test 2: The Anti-Lock Brake System (ABS) Control Module Does Not Respond to the Scan Tool
PINPOINT TEST 2: THE ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE DOES NOT RESPOND TO THE SCAN TOOLNormal Operation
The ABS control 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 control module. The ABS control module shares the HS-CAN network with the PCM, the four wheel drive (4WD) control module, the instrument cluster, the restraints control module (RCM), the power steering control module and the occupant classification sensor module. Voltage for the ABS control module is provided by circuits (V/BR), (R) and (Y/R). Ground is provided by circuit (B/G).
Possible Causes
- Fuse
- Wiring, terminals or connectors
- ABS control 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.
Step 1-Step 4:
