DTC B2615
Diagnostic Instructions
DTC Descriptor
| DTC B2615 02: Passenger Compartment Dimming 2
Circuit Short to Ground |
Diagnostic Fault Information
Circuit
|
Short to Ground
|
Open/High Resistance
|
Short to Voltage
|
Signal Performance
|
Courtesy Lamps Control
|
B2615 02
|
2
|
1
|
-
|
1. Courtesy Lamps Always Illuminated
2. Courtesy Lamps do Not Illuminate
|
|
| |
Circuit/System Description
Battery voltage for the courtesy lamps is supplied at all times
to the body control module (BCM). When the BCM receives a signal to
command the courtesy lamps ON, it then applies voltage through the
courtesy lamps control circuits to the courtesy lamps listed
below.
| • |
Dome/Reading lamps - front
overhead console |
| • |
Dome/Reading lamps -
front |
| • |
Dome/reading lamps -
middle |
Conditions for Running the DTC
The BCM attempts to illuminate the courtesy lamps.
Conditions for Setting the DTC
The BCM detects a short to ground on the courtesy lamp control
circuit.
Action Taken When the DTC Sets
The BCM will not attempt to activate courtesy lamps.
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 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
Command the Courtesy Lamps test ON and OFF with a scan tool. The
courtesy lamps should turn ON and OFF when changing between the
commanded states.
Circuit/System Testing
| 1. |
Ignition OFF, disconnect the
harness connectors at the appropriate inoperative component.
|
| 2. |
Disconnect the negative
terminal of the C1 Battery. |
| 3. |
Test for less than 5 Ω
between the ground circuit terminal 6 of the 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 control circuit terminal 2 and ground. |
| 6. |
Command the Courtesy Lamps ON
and OFF with a scan tool. |
| ⇒ |
If the test lamp is always OFF, test the control
circuit for a short to ground or open/high resistance. 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. |
| 7. |
If all circuit test normal,
test or replace the appropriate inoperative component. |
Repair Instructions
Perform the
Diagnostic Repair Verification after completing the diagnostic
procedure.
|
