B2615
DTC B2615
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 Descriptor
DTC B2615 00
-
Passenger Compartment Dimming 2 Circuit
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) applies battery voltage to the courtesy lamps through 2 separately controlled courtesy lamp supply voltage circuits. When any door is opened, the door ajar switch contacts close and the BCM receives a door-ajar input. If the BCM receives a door lock or unlock input or a rear hatch open input, the BCM will activate the courtesy lamp supply voltage circuits, providing battery voltage to all of the dome/reading lamps, ignition key cylinder lamp, and rear compartment lamp. In the event that any of these lamps were to remain illuminated for more than 10 minutes with the ignition switch in the OFF position, the BCM will deactivate the courtesy lamp control circuits to prevent total battery discharge.
Conditions for Running the DTC
Battery voltage must be between 9-16 V.
Conditions for Setting the DTC
* The BCM detects a short to voltage, short to ground, or an open/high resistance in the courtesy lamps control circuit.
* The BCM detects a short to ground or an open/high resistance in the F5DA fuse B+ circuit terminal 2 X4.
Actions Taken When the DTC Sets
The BCM will not illuminate any courtesy lamps supplied by the courtesy lamps 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-free ignition cycles have occurred.
Reference Information
Schematic Reference
* Interior Lights Schematics Interior Lights Schematics
* Body Control System Schematics [1][2]Body Control Systems
Connector End View Reference
Component Connector End Views Fuel Pump and Level Sensor Assembly
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 Testing
1. Ignition OFF, disconnect the X4 harness connector at the K9 body control module.
2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 2 and ground.
• If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
3. Ignition OFF, connect the X4 harness connector at the K9 body control module.
4. Disconnect the harness connectors at the following components:
* E37F dome/reading lamps - front
* E37R dome/reading lamps - rear
* E47 ignition lock cylinder lamp
5. Connect a test lamp between each control circuit terminal listed below and ground:
* E37F dome/reading lamps - front terminal 4
* E37R dome/reading lamps - rear terminal 2
* E47 ignition lock cylinder lamp terminal 2
6. Command the Courtesy Lamp ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
• 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.
• If the test lamp is always OFF, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 body control module.
7. Reconnect each component one at a time and verify the DTC does not reset as current.
• If the DTC resets as current, replace the component responsible for setting the DTC.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Ignition Lock Cylinder Bulb Replacement Ignition Lock Cylinder Bulb Replacement
* Dome Lamp Replacement Service and Repair
* Control Module References Control Module References for BCM replacement, setup, and programming