When You Turn the Ignition Switch To ON (II), The D Indicator Comes On and Stays On In All Shift Lever Positions

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 (tach) defective

3. PCM defective

Also check for:

- Check the F-CAN communication line. B1178
- Check the A/T gear position indicator drive circuit in the gauge control module (tach) by using the gauge control module self-diagnostic function. [1][2]Initial Inspection and Diagnostic Overview