Turning Ignition Switch to ON, D Indicator Comes On/Stays On in All Shift Positions, or Never Comes On at All

When you turn the ignition switch to ON (II), the D indicator comes on and stays on in all shift lever positions, or it never comes on at all

Diagnostic Procedure:

1. F-CAN communication line error

2. Gauge control module defective

3. PCM defective

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