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 Instructions) provides an overview of each diagnostic category.
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) supplies the dome/reading lamps, sunshade and instrument panel compartment lamp with battery voltage. When switching on the following components the concerning lamps will illuminate:
* Dome/reading lamps
* Sunshade - left front
* Sunshade - right front
* Instrument panel compartment lamp
Reference Information
Schematic Reference
Interior Lights Schematics (Interior Lights Schematics)
Connector End View Reference
Component Connector End Views (Connector End Views By Name)
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 (Programming and Relearning)
Circuit/System Verification
Ignition ON, observe the lamp of the sunshade - left front/sunshade - right front 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 Body Control Module.
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 Support Replacement (Sunshade Support Replacement)
* Control Module References (Programming and Relearning) for BCM replacement, setup, and programming