Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
Diagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Sunshade Lamps B+ | 1, 2, 3 | 2 | -- | -- |
Sunshade Lamps Ground | -- | 2 | -- | -- |
1. Reading lamps always OFF 2. Sunshade lamps always OFF 3. I/P Compartment lamp Always OFF | ||||
Circuit/System Description
The body control module (BCM) supplies the the dome/reading lamps, sunshade and I/P compartment lamp with battery voltage. When switching on the following components the concerning lamps will illuminate:
| • | Dome/reading lamps |
| • | Dome/reading lamps - row |
| • | Sunshade - left Front |
| • | Sunshade - right Front |
| • | I/P compartment lamp |
Reference Information
Schematic Reference
LINK
Connector End View Reference
Description and Operation
Interior Lighting Systems Description and Operation
Electrical Information Reference
| • | Circuit Testing |
| • | Wiring Repairs |
Scan Tool Reference
Control Module References for scan tool information
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
Sunshade Light Circuit Malfunction
- Ignition OFF, disconnect the harness connector at the A3LF Sunshade - Left Front or A3RF Sunshade - Right Front.
- Test for less than 5 Ω between the ground circuit terminal B and ground.
- Ignition ON, test for greater than 11 V between the circuit terminal A and the ground circuit terminal B.
- If all circuits test normal, test or replace the A3LF Sunshade - Left Front or A3RF Sunshade - Right Front.
| ⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
| ⇒ | 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 (BCM). |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for BCM replacement, setup, and programming |
