B2615

DTC B2615

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.

DTC Descriptor

DTC B2615 00

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Passenger Compartment Dimming 2 Circuit

Diagnostic Fault Information






Circuit/System Description

Battery voltage for the courtesy lamps is supplied at all times, from the INAD/PWR/LED Fuse located in the I/P fuse block to the body control module (BCM). When the BCM receives a signal to command the courtesy lamps ON, it then applies voltage through the courtesy lamps control circuits to the courtesy lamps.

Conditions for Running the DTC

The BCM attempts to illuminate the courtesy lamps.

Conditions for Setting the DTC

The BCM detects a short to ground on the courtesy lamp control circuit.

Action Taken When the DTC Sets

The BCM will not attempt to activate courtesy lamps.

Conditions for Clearing the DTC

A history DTC will clear once 100 consecutive malfunction ignition cycles have occurred.

Reference Information

Schematic Reference

Interior Lights Schematics Interior Lights Schematics

Connector End View Reference

Component Connector End Views A/C Compressor Clutch

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 for scan tool information

Circuit/System Verification

Ignition ON, command the Courtesy Lamps ON and OFF with a scan tool. The courtesy lamps should turn ON and OFF when changing between the commanded states.

Circuit/System Testing

Note:
Each dimming lighting component may need to be disconnected to isolate a short to voltage or short to ground. Use the schematic to identify the following:

* Dimming lighting components the vehicle is equipped with.

* Component locations on the dimming control circuit

* Each component's control and ground circuit terminals

1. Ignition OFF, disconnect the harness connector at any component with inoperative dimming lighting.

2. Ignition OFF, scan tool disconnected, interior lamps OFF, doors CLOSED, test for less than 5 ohms between the ground circuit and ground.

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

3. Connect a test lamp between the control circuit terminal and ground.

4. Command the Courtesy Lamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.

• If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM.

• If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the BCM.

5. If all circuits test normal, test or replace the component with the inoperative dimming lighting.

Repair Instructions

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

* Refer to the appropriate replacement procedure for the lighting component that requires replacement.

* Control Module References Control Module References for BCM replacement, programming and setup