PRNDL Control Circuit Low

PRNDL CONTROL CIRCUIT LOW

For a complete wiring diagram, Refer to the Wiring Information Electrical Diagrams

- When Monitored:
Continuously with the ignition on.

- Set Condition:
The DTC will set if the Electronic Shift Module (ESM) detects a malfunction in the PRNDL control circuit.





Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Transmission Pre-Diagnostic Troubleshooting Procedures

1. CHECK ILLUMINATION CIRCUIT

Is there an overall illumination problem with the vehicle?

Yes

- Refer to DTC Based Diagnostics and perform the appropriate diagnostic procedure.
- Perform NAG1 TRANSMISSION VERIFICATION TEST. NAG1 Transmission Verification Test

No

- Go To 2

2. CHECK THE TERM 58D ILLUMINATION CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off to the lock position.
2. Disconnect the Shift Lever Assembly harness connector.

NOTE: Check connectors - Clean/repair as necessary.

3. Measure the resistance between ground and the Illumination circuit.

Is the resistance below 5.0 ohms?

Yes

- Repair the Illumination circuit for a short to ground.
- Perform NAG1 TRANSMISSION VERIFICATION TEST. NAG1 Transmission Verification Test

No

- Go To 3

3. CHECK THE TERM 58D ILLUMINATION CIRCUIT FOR AN OPEN
1. Disconnect the Instrument Cluster harness connector.
2. Check the resistance of the Illumination circuit between the Shift Lever Assembly harness connector and the Instrument Cluster harness connector.

Is resistance above 100k ohms?

Yes

- Repair the Illumination circuit for an open.
- Perform NAG1 TRANSMISSION VERIFICATION TEST. NAG1 Transmission Verification Test

No

- Replace the Shift Lever Assembly (Illumination Module).
- Perform NAG1 TRANSMISSION VERIFICATION TEST. NAG1 Transmission Verification Test