Diagnostic Test
WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
- DTC IS ACTIVE
- Ignition on, engine not running.
- With the scan tool, erase DTCs in the PCM.
- Monitor the scan tool for at least two minutes.
- Cycle the ignition key off and on several times, leaving the ignition on for at least 10 seconds at a time.
- Start the engine.
- Perform several engine run cycles, turning the ignition off for at least 20 seconds between each engine run cycle.
- With the scan tool, select View DTCs.
Did this DTC return?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
- CHECKING THE PCM POWER AND GROUND CIRCUITS
- Perform the diagnostic procedure for CHECKING THE PCM POWER AND GROUND CIRCUITS. Refer to DIAGNOSIS AND TESTING
.
Were any problems found?
Yes
- Repair the PCM power and ground circuit(s) as necessary.
- Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
No
- Go To 3
- Perform the diagnostic procedure for CHECKING THE PCM POWER AND GROUND CIRCUITS. Refer to DIAGNOSIS AND TESTING
.
- POWERTRAIN CONTROL MODULE
- Using the wiring diagram/schematic as a guide, inspect the Powertrain Control Module wiring and connectors.
- Look for any chafed, pierced, pinched, or partially broken wires.
- Look for broken, bent, pushed out or corroded terminals.
- Monitor the scan tool data relative to this circuit and wiggle test the wiring and connectors.
- Look for the data to change or for the DTC to reset during the wiggle test.
- Check for proper PCM power supply from the ignition switch and the ASD relay. Check the PCM for proper ground supply.
- Perform any Technical Service Bulletins that may apply.
Were any problems found?
Yes
- Repair as necessary.
- Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
No
- Replace and program the Powertrain Control Module in accordance with the service information. Refer to REMOVAL .
- Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .