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

Also check for:

- Check the F-CAN communication line for a DTC. B1168
- Check the F-CAN communication line by using the gauge control module self-diagnostic function. How to Troubleshoot the Gauges and Indicators
- Check the indicator drive circuit in the gauge control module by using the gauge control module self-diagnostic function. How to Troubleshoot the Gauges and Indicators
- Inspect the transmission range switch. Transmission Range Switch Test