When You Turn the Ignition Switch to on (II), the D3 Indicator Comes on and Stays on In All Shift Lever Positions, or It Never

When you turn the ignition switch to ON (II), the D3 indicator comes on and stays on in all shift lever positions, or it never comes on at all

Diagnostic Procedure:

1. Gauge control module defective

2. PCM defective

3. F-CAN circuit defective

Also check for:

- Check the indicator drive circuit in the gauge control module by using the gauge control module self-diagnostic function. Initial Inspection and Diagnostic Overview
- Check for a short or an open in F-CAN wires between PCM and gauge control module.