Workshop Manuals Factory service & repair Vauxhall
Vauxhall Astra J05 · Body Systems
05 · Body & interior

DTC B2610

Make
Vauxhall
Model
Astra J
Section
Diagnostic Information and Procedures › Miscellaneous › DTC B2610
Body SystemsDTC B2610

DTC B2610

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 02: Passenger Compartment Dimming 1 Circuit Short to Ground

Diagnostic Fault Information



Circuit
Short to Ground
Open/High Resistance
Short to Voltage
Signal Performance

LED Interior Backlighting Control Terminal 8 X2
B2610 02
2
1
-

LED Interior Backlighting Control Terminal 9 X7
B2610 02
2
1
-

Backlighting Ground
-
2
-
-

1. Interior backlighting at full Intensity and cannot be dimmed

2. Interior backlighting do not illuminate
 

Circuit/System Description

The body control module (BCM) supplies a voltage reference to the backlight dimmer switch, which is part of the headlamp switch. When the backlight dimmer switch is placed in a desired brightness position, reference voltage is applied through the backlight dimmer switch rheostat to the BCM. The BCM interprets this voltage signal, then applies a pulse width modulated (PWM) voltage through the backlight lamp control circuit, and the LED dimming control circuit illuminating the LEDs and the components listed below, if equipped:

•  Dome/reading lamps - front
•  Dome/reading lamps - front overhead console
•  Outside rearview mirror switch
•  Ultrasonic intrusion sensor disable switch
•  Window switch - driver
•  Window switch - passenger
•  Window switch - left rear
•  Window switch - right rear
•  Sunroof tilt switch
•  Sunroof switch
•  Passenger air bag disable indicator
•  Traction control switch
•  Door lock switch
•  Steering wheel controls switch
•  Accessory power outlet - instrument panel
•  Ignition mode switch
•  Park brake switch
•  Tour mode switch
•  Sport mode switch
•  Park assist switch
•  Headlamp switch

Conditions for Running the DTC

•  The ignition is ON.
•  The headlamps or park lamps ON.

Conditions for Setting the DTC

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

Action Taken When the DTC Sets

The BCM will not dim or illuminate any LED backlighting supplied by the backlight lamp control circuits.

Conditions for Clearing the DTC

•  The condition responsible for setting the DTC no longer exists.
•  A history DTC will clear once 100 consecutive malfunction ignition cycles have occurred.

Reference Information


Schematic Reference

Interior Lights Dimming Schematics


Connector End View Reference

Component Connector End Views


Description and Operation

Interior Lighting Systems Description and Operation


Electrical Information Reference


Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Ignition ON, command the LED Backlight Dimming test with a scan tool. The illumination should be ON/OFF.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connectors at the appropriate inoperative backlighting component.
2. Disconnect the negative terminal of the C1 Battery.
3. Test for less than 5 Ω between the black wire of the appropriate component and ground.
⇒ If greater than the specified range, test the ground circuit for an open/high resistance.
4. Reconnect the negative terminal of the C1 Battery.
5. Connect a test lamp between the yellow wire of the appropriate component and ground.
6. Command with the scan tool the LED Backlight Dimming test the illumination ON/OFF.
⇒ If the test lamp cannot be dimmed, test the control circuit for a short to voltage or replace the K9 Body Control Module.
⇒ If the test lamp does not emit at all, test the control circuit for open/high resistance or replace the K9 Body Control Module.
7. If all circuit test normal, test or replace the appropriate inoperative backlighting component.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

•  Control Module References for BCM, HVAC control module, and radio replacement, setup, and programming

Parts & tools for this job For Vauxhall Astra

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