Diagnostic Test
- ACTIVE DTC
- Ignition on, engine not running.NOTE: Check for any Bus Communication DTCs. If no Bus or Communication DTCs are set, check for active DTCs in the Anti-Lock Brake Module. Any bus, communication, or VSS DTCs in the Anti-Lock Brake Module must be properly diagnosed before continuing.
- With a scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
- Go to step 2
No
- Refer to the CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- Ignition on, engine not running.
- VISUAL INSPECTION NOTE: This code can set due to tire circumference differences and from the front or rear wheels being on a slippery surface while the opposite tires are not.
- This code may also set on a hard acceleration on loose gravel or during other off road driving conditions.
- Check tire pressure of all the tires.
- Check tire wear on all the tires.
- Ask the customer what the road and driving conditions were like when the fault set.
Were any problems found?
Yes
- Repair as necessary. If the code set during a front OR rear wheel spin condition, no repair is necessary.
- Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
No
- Go to step 3
- POWERTRAIN CONTROL MODULE (PCM)
- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors related to this circuit.
- Look for any chafed, pierced, pinched, or partially broken wires.
- Look for broken, bent, pushed out or corroded terminals.
- Refer to any Technical Service Bulletins that may apply.
Were any problems found?
Yes
- Repair as necessary.
- Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
No
- Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information.
- Perform the PCM Verification Test. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .