1. No Start Pre-Test
The battery must be fully charged and in good condition. A low charged battery may produce invalid test results. If the battery is low, charge the battery and then attempt to start the vehicle by cranking the engine for 15 seconds, 3 consecutive times.
This will allow DTCs to set that may have been erased due to a dead battery.
Try to communicate with PCM if not able to communicate check fuses. Ensure the Power and Ground to the PCM are OK.
Make sure the PCM communicates with the DRB III(R) and that there are no DTCs stored in the PCM memory. If the PCM reports a No Response condition, see ELECTRONIC CONTROL MODULES article for the proper tests.
Read the PCM DTCs with the DRB III(R). If any DTCs are present, they must be repaired before continuing with any other No Start diagnostic tests.
Ensure that the Bus is functional. Attempt to communicate with the Instrument Cluster and SKREEM. If you are unable to establish communications, see ELECTRONIC CONTROL MODULES article for the proper symptoms.
The Sentry Key Remote Entry Module (SKREEM) System must be operating properly. Check for proper communication with the DRB III(R) and check for DTCs that may be stored in the SKREEM. Repair the DTC(S) before continuing.
Crank the engine several times. Using the DRB III(R), read DTCs. If a DTC is present perform the DTC diagnostics before continuing.
Were any problems found?
- Yes >> Repair as necessary.
- No >> Go To 2