Diagnostic Test

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

1) ACTIVE DTC
Ignition on, engine not running.

With a scan tool, read DTCs.

Is the DTC active at this time?

Yes
1. Go To step 2).
No
1. Refer to INTERMITTENT CONDITION .
2. Perform POWERTRAIN VERIFICATION TEST .
2) NVLD SOLENOID

Fig 1: Checking NVLD Solenoid
Courtesy of DAIMLERCHRYSLER CORP.

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
1. Go To step 3).
No
1. Replace the NVLD Assembly.
2. Perform POWERTRAIN VERIFICATION TEST .
3) (K106) NVLD SOLENOID CONTROL CIRCUIT SHORTED TO GROUND

Fig 2: Checking NVLD Solenoid Control Circuit Shorted to Ground
Courtesy of DAIMLERCHRYSLER CORP.

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
1. Repair the short to ground in the (K106) NVLD Solenoid Control circuit.
2. Perform POWERTRAIN VERIFICATION TEST .
No
1. Go To step 4).
4) 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
1. Repair as necessary.
2. Perform POWERTRAIN VERIFICATION TEST .
No
1. Replace and program the Powertrain Control Module per Service Information.
2. Perform POWERTRAIN VERIFICATION TEST .