Diagnostic Test
- CHECK FOR AN ACTIVE DTC NOTE:
Diagnose all CAN B and C communication DTCs before continuing.
- Turn the ignition on.
- With the scan tool, read DTCs and record on the repair order.
Is the DTC active or pending?
Yes
- Go To 2
No
- Perform the STORED LOST COMMUNICATION DTCs diagnostic procedure. Refer to DIAGNOSIS AND TESTING .
- SAS COMMUNICATION RELATED DTCs IN OTHER MODULES
- With the scan tool, select Network Diagnostics.
Is there more than one module with active DTCs "Logged Against" the SAS at this time?
Yes
- Perform the U0212-LOST COMMUNICATION WITH SCM diagnostic procedure. Refer to the BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX article .
No
- Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
- With the scan tool, select Network Diagnostics.