DTC B096A
Diagnostic Instructions
DTC Descriptor
| DTC B096A 02: Hazard Lamps Switch Backlight
Circuit Short to Ground |
Diagnostic Fault Information
Circuit
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
Hazard Lamp Switch Backlight Control
|
B096A 02
|
1
|
2
|
-
|
Ground
|
-
|
1
|
1
|
-
|
1. Hazard Lamp Switch Backlighting Inoperative
2. Hazard Lamp Switch Backlighting Always ON
|
|
| |
Circuit/System Description
The body control module (BCM) supplies a pulse width modulated
(PWM) voltage to the LED circuit of the hazard lamp switch for
backlight.
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
The BCM detects a short to ground, or an open in the PWM circuit
for the hazard lamp 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 once
100 consecutive malfunction ignition cycles have occurred.
|
Reference Information
Schematic Reference
Exterior Lights 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 connector at the S26 Hazard Warning Switch. |
| 2. |
Test for less than 5 Ω
between the ground circuit terminal 7 and ground. |
| ⇒ |
If greater than the specified range, test the
ground circuit for an open/high resistance. |
| 3. |
Ignition ON, headlamp switch
ON, connect a test lamp between the backlight control circuit of
S26 Hazard Warning Switch terminal 5 and ground. |
| ⇒ |
If the test lamp does not illuminate, test the
control circuit for an open/high resistance or short to ground. If
the circuit tests normal, replace the K9 Body Control Module. |
| ⇒ |
If the test lamp is always ON, test the control
circuit for a short to voltage. If the circuit tests normal,
replace the K9 Body Control Module. |
| 4. |
If all circuits test normal,
replace the S26 Hazard Warning Switch. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
|
