Diagnostic Test
- 1) VEHICLE HISTORY AND SERVICE BULLETIN INVESTIGATION
Ignition on, engine not running.
With a scan tool, read DTCs and record the related Freeze Frame data if any DTC(s) are present.
Whether or not any DTC(s) are present you will want to check the following items which may assist in repairing the customer's complaint successfully.
Check the vehicles repair history.
If the vehicle has a repair history that pertains to the customer's current complaint, review the repair.
Inspect the vehicle for any aftermarket accessories that may have been installed incorrectly.
Check for any service bulletin(s) related to the customer's complaint or DTC(s).
If a service bulletin applies, follow the instructions per the service bulletin.
Choose the following scenario that best applies.
The service bulletin repaired the customer's complaint.
- Testing complete.
A DTC is present, no service bulletins apply or the service bulletin didn't repair the customer's complaint.
- Go to 2).
- 2) ACTIVE DTC
Ignition on, engine not running.
With a scan tool, read DTCs.
Is the DTC active at this time?
Yes
- Go to 3).
No
- Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Refer to INTERMITTENT CONDITION .
- Perform POWERTRAIN VERIFICATION TEST .
- 3) NVLD SOLENOID
Turn the ignition off.
Disconnect the NVLD electrical harness connector.
Measure the resistance of the NVLD Solenoid Coil.
Is the resistance between 7.5 to 8.5 ohms?
Yes
- Go to 4).
No
- Replace the NVLD Assembly.
- Perform POWERTRAIN VERIFICATION TEST .
- 4) (K106) NVLD SOLENOID CONTROL CIRCUIT SHORTED TO GROUND
Disconnect the C3 PCM harness connector.
Measure the resistance between ground and the (K106) NVLD Solenoid Control circuit in the NVLD electrical harness connector.
Is the resistance below 100 ohms?
Yes
- Repair the short to ground in the (K106) NVLD Solenoid Control circuit.
- Perform POWERTRAIN VERIFICATION TEST .
No
- Go to 5).
- 5) PCM NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay particular attention to all Power and Ground circuits.
Were there any problems found?
Yes
- Repair as necessary.
- Perform POWERTRAIN VERIFICATION TEST .
No
- Replace and program the Powertrain Control Module per Service Information.
- Perform POWERTRAIN VERIFICATION TEST .