Diagnostic Test
- ACTIVE DTC
- Ignition on, engine not running.
- With the scan tool, select View DTCs.
Is the U1417-IMPLAUSIBLE LEFT WHEEL DISTANCE SIGNAL RECEIVED Active at this time?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
- ABS MODULE IS ACTIVE ON THE CAN C BUS
- With the scan tool, select ECU View.
- Verify that the ABS Module is active on the bus.
Is the ABS Module active on the bus?
Yes
- Go To 3
No
- Refer to DIAGNOSIS AND TESTING and perform the NO RESPONSE FROM ABS diagnostic procedure.
- DTCS STORED OR ACTIVE IN THE ABS MODULE
- Check for DTCs in the ABS Module.
Are any DTCs active or stored in the ABS Module?
Yes
- Refer to DIAGNOSIS AND TESTING and perform the appropriate diagnostic procedure.
No
- Go To 4
- Check for DTCs in the ABS Module.
- ACTIVE DTCS IN THE TOTALLY INTEGRATED POWER MODULE
- With the scan tool, read Active DTCs.
Are any Communication DTCs active in the TIPM relating to the ABS System?
Yes
- Replace the ABS Module in accordance with the Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM, REMOVAL .
- Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to REMOVAL .
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
- With the scan tool, read Active DTCs.