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. |
DTC Descriptor
DTC B2610 00: Passenger Compartment Dimming 1 CircuitDiagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
LED Backlighting Dimming Supply | B2652 00 | 2 | 1 | -- |
| ||||
Circuit/System Description
When the interior lamps dimming switch is activated, a variable voltage signal is applied through the instrument panel lamps dimmer switch signal circuit to the body control module (BCM). The BCM then applies a variable voltage signal through the LED backlighting dimming supply circuit to the following components:
| • | Clock |
| • | Diver Information center (DIC) switch |
| • | Headlamp Switch |
| • | HVAC Control Head |
| • | Radio |
| • | Steering Wheel Control Switch |
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
The BCM receives a ground signal on the LED dimming supply circuit
Action Taken When the DTC Sets
The BCM cease attempt to dim or illuminate the LED lamps.
Conditions for Clearing the DTC
The BCM clears this code from current when the fault is removed from the system.
Reference Information
Schematic Reference
Interior Lights Dimming Schematics
Connector End View Reference
Lighting Systems Connector End Views
Electrical Information Reference
Scan Tool Reference
Circuit/System Verification
Ignition ON, cover the ambient light sensor, vary the interior lamp dimming switch from dim to full bright. The LED lamps should dim and then become full bright.
Circuit/System Testing
- Disconnect all the LED backlighting dimming supply circuit lamps related components. Refer to the circuit/system verification for all components that contain the LED backlighting dimming supply circuit lamps. Verify the DTC B2610 does not set
- Reconnect each component one at a time and test for the DTC B2610. If the DTC resets then replace that component.
| ⇒ | If the DTC resets then test for a short to ground in the LED dimming supply circuit lamps circuit. If the circuit/connections test normal replace the BCM. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for BCM replacement, setup, and programming |
