B2615

DTC B2615

DTC DESCRIPTOR

DTC B2615 00

Passenger Compartment Dimming 2 Circuit

DIAGNOSTIC FAULT INFORMATION






IMPORTANT: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview

CIRCUIT/SYSTEM DESCRIPTION
Voltage for the courtesy lamps is supplied from the CTSY/RF Trim Fuse in the rear electrical center to the body control module (BCM). When a door is opened, a signal is applied to the door module. The door module then applies a message to the LAN communication circuit to the BCM. The BCM then applies voltage to the courtesy lamps voltage supply circuit. The courtesy lamps are composed of the following components:
- Foot well lamps
- Roof rail lamps
- Overhead lamps

CONDITIONS FOR RUNNING THE DTC
The ignition is ON, and the BCM attempts to illuminate the courtesy lamps.

CONDITIONS FOR SETTING THE DTC
The BCM receives a ground signal on the courtesy lamp voltage supply circuit

ACTION TAKEN WHEN THE DTC SETS
The BCM cease attempt to illuminate the courtesy lamps.

CONDITIONS FOR CLEARING THE DTC
The BCM clears this code from current when the fault is removed from the system.

Circuit/System Verification
Ignition ON, cover the ambient light sensor, vary the interior lamp dimming switch from dim to full bright. The light emitting diode (LED) lamps should dim and then become full bright.

Circuit/System Testing
1. Disconnect all the courtesy lamps voltage supply circuit lamps related components. Verify the DTC B2615 does not set
- If the DTC resets then test for a short to ground in the courtesy lamp voltage supply circuit lamps circuit. If the circuit/connections test normal replace the BCM.
2. Reconnect each component one at a time and test for the DTC B2615. If the DTC resets then replace that component.

Repair Instructions

IMPORTANT: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

- Courtesy Lamp Replacement - Rear Quarter
- Control Module References for BCM replacement, setup, and programming Programming and Relearning