Diagnostic Test
- CHECK FOR AN ACTIVE DTC
- Ignition on, engine not running.
- With the scan tool, select View DTCs.
Is the DTC Active at this time?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
- VERIFY THAT THE ANTI-LOCK BRAKE SYSTEM (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
- Perform the No Response From ABS diagnostic procedure. Refer to DIAGNOSIS AND TESTING .
- CHECK THE ABS MODULE FOR ANY ACTIVE, PENDING, OR STORED DTCS
- Check for DTCs in the ABS Module.
Are any DTCs active, pending, or stored in the ABS Module?
Yes
- Perform the appropriate diagnostic procedure. Refer to ANTILOCK BRAKE SYSTEM (ABS) - DIAGNOSTIC CODE INDEX .
No
- Go To 4
- Check for DTCs in the ABS Module.
- CHECK FOR IMPLAUSIBLE MESSAGES WITH OTHER MODULES
- With the scan tool, View the Network Review Screen.
Are any other modules reporting implausible messages against the Powertrain Control Module?
Yes
- Replace and program the Powertrain Control Module (PCM) in accordance with the service information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL .
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Replace the ABS Module in accordance with the service information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
- With the scan tool, View the Network Review Screen.