B096F

DTC B096F

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 Descriptors
DTC B096F 01
- Power Mode Switch Assembly Backlight Circuit Short to Battery

DTC B096F 02
- Power Mode Switch Assembly Backlight Circuit Short to Ground

DTC B096F 04
- Power Mode Switch Assembly Backlight Circuit Open

Diagnostic Fault Information






Circuit/System Description

The body control module (BCM) supplies a pulse width modulated (PWM) voltage to the LED circuit of the power mode for backlight.

Conditions for Running the DTC

The ignition is ON.

Conditions for Setting the DTC

The BCM detects a short to voltage, short to ground, or an open in the PWM circuit for the power mode switch backlight LED circuit.

Action Taken When the DTC Sets

The BCM will not illuminate the LED backlighting supplied by the backlight lamp control circuit.

Conditions for Clearing the DTC

* The condition responsible for setting the DTC no longer exists.
* A history DTC will clear after 100 consecutive fault-free ignition cycles have occurred.

Reference Information
Schematic Reference

Exterior Lights Schematics Exterior Lights Schematics
Connector End View Reference

Component Connector End Views Hybrid/EV Battery Pack X1 A4
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

Open the drivers door and observe the power mode switch. The power mode switch backlight should be illuminated.

Circuit/System Testing

1. Disconnect the harness connector at the S38 ignition mode switch.
2. Test for less than 5 ohm between the ground circuit terminal 4 and ground.

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

3. Connect a test lamp between the backlight control circuit of S38 ignition mode switch terminal 8 and ground.
4. Close the drivers door and wait 30 seconds. Open drivers door and verify the test lamp flashes.

• If the test lamp does not flash, test the control circuit for an open/high resistance or short to ground. If the circuit tests normal, replace the K9 BCM.
• If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.

5. If all circuits test normal, replace the S38 ignition mode switch.

Repair Instructions

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

* Ignition and Start Switch Replacement Service and Repair
* Control Module References Control Module References for BCM replacement, programming and setup