A/T Gear Position Indicator Does Not Come on While the Shift Lever Is In That Position; Shift Indicator Does Not Work

A/T gear position indicator does not come on while the shift lever is in that position; shift indicator does not work

Diagnostic Procedure:

1. F-CAN communication line error

2. Gauge control module defective

3. PCM defective

4. Transmission range switch defective or out of adjustment

Also check for:

- Check the F-CAN communication line for a DTC. F-CAN Circuit Troubleshooting
- Check the F-CAN communication line by using the gauge control module self-diagnostic function. Reading and Clearing Diagnostic Trouble Codes
- Check the indicator drive circuit in the gauge control module by using the gauge control module self-diagnostic function. Reading and Clearing Diagnostic Trouble Codes
- Inspect the transmission range switch. Transmission Range Switch Test