B2615

DTC B2615

Diagnostic Instructions
^ Perform the [Diagnostic System Check - Vehicle Diagnostic Information] prior to using this diagnostic procedure. Diagnostic System Check - Vehicle Diagnostic Information
^ [Strategy Based Diagnosis] Strategy Based Diagnosis
^ [Diagnostic Procedure Instructions - Vehicle Diagnostic Information] Diagnostic Procedure Instructions - Vehicle Diagnostic Information

DTC Descriptor
DTC B2615 00 Passenger Compartment Dimming 2 Circuit

Diagnostic Fault Information






Circuit/System Description
Voltage for the courtesy lamps is supplied from the Interior Lights Fuse in the instrument panel I/P 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:
^ Dome lamps
^ Reading lamps
^ Cargo 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. Refer to the circuit/system verification for all components that contain the courtesy lamps voltage supply circuit lamps. 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
Perform the [Diagnostic Repair Verification - Vehicle Diagnostic Information] after completing the diagnostic procedure. Diagnostic Repair Verification - Vehicle Diagnostic Information
^ [Cargo Lamp Replacement]
^ [Dome Lamp Replacement (Without DVD)]
^ [Reading Lamp Bulb Replacement (Without CF5)] [Reading Lamp Bulb Replacement (With CF5)]
^ [Control Module References] for BCM replacement, setup, and programming Programming and Relearning