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

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

Diagnostic Procedure:

1. F-CAN communication line error

2. Gauge control module defective

3. PCM defective

4. Transmission range switch defective

5. Shift cable broken or out of adjustment

6. Connection between the shift cable and transmission or body is worn

Also check for:

- Check the F-CAN communication line for a DTC. F-CAN Circuit Troubleshooting
- Check the A/T gear position indicator drive circuit in the gauge control module by using the gauge control module self-diagnostic function. Initial Inspection and Diagnostic Overview
- Inspect the transmission range switch. Transmission Range Switch Test (A/T)
- Check for a loose shift cable at the shift lever and the selector control shaft.