Diagnostic Routine F

Diagnostic Routine F

Diagnostic Overview

One Or More Switch Or Component Illumination Is Inoperative

Refer to Wiring Diagram Set 71 for schematic and connector information Electrical Diagrams.

Normal Operation and Fault Conditions

REFER to Dimmable Backlighting .

Pinpoint Test

1. CHECK THE VOLTAGE TO THE INDIVIDUAL ILLUMINATION SOURCE

1. Ignition OFF.

2. Disconnect: Inoperative Illumination Source.

3. Ignition ON.

4. Press and hold the instrument panel dimmer switch up to the full illumination position.

5. Measure:








Is the voltage greater than 11 volts?







2. CHECK THE VOLTAGE TO THE INDIVIDUAL ILLUMINATION SOURCE USING THE CONNECTOR GROUND

1. Measure:





Is the voltage greater than 11 volts?