Sunshade Illumination Malfunction

Sunshade Illumination Malfunction

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructionsprovides an overview of each diagnostic category.

Diagnostic Fault Information






Circuit/System Description

The body control module (BCM) supplies the dome/reading lamps, sunshade mirror lamps with battery voltage. When switching on the following components the concerning lamps will illuminate:

* Dome/reading lamps
* Sunshade mirror lamp - left
* Sunshade mirror lamp - right

Reference Information
Schematic Reference

Interior Lights Schematics Interior Lights Schematics
Connector End View Reference

Component Connector End Views Hybrid/EV Battery Pack X1 A4
Description and Operation

Interior Lighting Systems Description and Operation Interior Lighting Systems
Electrical Information Reference

* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs

Scan Tool Reference

Control Module References Control Module References

Circuit/System Verification

Ignition ON, observe the lamp of the sunshade mirror lamp - left/sunshade mirror lamp - right while opening and closing. The lamp should illuminate when opened.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the appropriate inoperative sunshade.
2. Test for less than 5 ohm between the ground circuit terminal B and ground.

• If greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, test for greater than 11 V between B+ circuit terminal A and the ground circuit terminal B.

• If less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.

4. If all circuits test normal, test or replace the appropriate inoperative sunshade.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.

* Sunshade Replacement Sunshade Replacement
* Sunshade Illuminated Mirror Lamp Bulb Replacement Sunshade Illuminated Mirror Lamp Bulb Replacement
* Control Module References Control Module Referencesfor BCM replacement, setup, and programming