Chevrolet Trax: DTC B2615
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 B2615 02
Passenger Compartment Dimming 2 Circuit Short to Ground
Diagnostic Fault Information
Circuit/System Description
The body control module (BCM) applies battery voltage to the dome/reading
lamps through the dome/reading
lamp control circuit. When any door is opened, the jam 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
dome/reading lamp control circuit, providing battery voltage to dome/reading
lamps. In the event that any of
these courtesy lamps were to remain illuminated for more than 10 minutes with
the ignition switch in the OFF
position and no doors opened, the BCM will deactivate the courtesy lamp control
circuit 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 ground in the dome lamps control circuit terminal
1 X7.
Actions Taken When the DTC Sets
The BCM will disable the dome 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 (Encore) , Interior Lights Schematics (Trax)
- Body Control System Schematics (Encore) , Body Control System
Schematics (Trax)
Connector End View Reference
WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS -
INDEX - ENCORE WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT
CONNECTOR END VIEWS - INDEX - TRAX
Description and Operation
Interior Lighting Systems Description and Operation
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Testing
- Ignition OFF, disconnect the X5 harness connector at the K9 Body Control
Module, ignition ON.
- Verify a test lamp illuminates between the B+ circuit terminal 4 and
ground.
- If the test lamp does not illuminate and the circuit fuse is good
- Ignition OFF.
- Test for less than 2 ohms in the B+ circuit end to end.
- If 2 ohms or greater, repair the open/high resistance in the circuit.
- If less than 2 ohms, verify the fuse is not open and there is voltage at
the fuse.
- If the test lamp does not illuminate and the circuit fuse is open
- Ignition OFF.
- Test for infinite resistance between the B+ circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- If infinite resistance, replace the K9 Body Control Module.
- If the test lamp illuminates
- Ignition OFF, connect the X5 harness connector at the K9 Body Control
Module.
- Ignition OFF, all doors closed, all accessories OFF, disconnect the
harness connector at the E37A
Dome/Reading Lamps - Front and E36AH Dome Lamp. It may take up to 2 minutes
for all vehicle
systems to power down.
- Test for less than 15 ohms between the appropriate ground circuit
terminal listed below and ground.
- E37A Dome/Reading Lamps - Front terminal 6
- E36AH Dome Lamp - terminal 2
- If 15 ohms or greater
- Ignition OFF.
- Test for less than 2 ohms in the ground circuit end to end.
- If 2 ohms or greater, repair the open/high resistance in the circuit.
- If less than 2 ohms, repair the open/high resistance in the ground
connection.
- If less than 15 ohms
- Connect a test lamp between the appropriate control circuit terminal
listed below and ground, ignition
ON.
- E37A Dome/Reading Lamps - Front terminal 2
- E36AH Dome Lamp - terminal 3
- Verify the test lamp turns ON and OFF when commanding the Courtesy Lamps
ON and OFF with a scan
tool.
- If the test lamp is always OFF
- Ignition OFF, disconnect the X7 harness connector at the K9 Body Control
Module.
- Test for infinite resistance between the control circuit and ground.
- If less than infinite resistance, repair the short to ground on the
circuit.
- If infinite resistance
- Test for less than 2 ohms in the control circuit end to end.
- If 2 ohms or greater, repair the open/high resistance in the circuit.
- If less than 2 ohms, replace the K9 Body Control Module.
- If the test lamp is always ON
- Ignition OFF, disconnect the X7 harness connector at the K9 Body Control
Module, ignition ON.
- Test for less than 1 V between the control circuit terminal and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, replace the K9 Body Control Module.
- If the test lamp turns ON and OFF
- Test or replace the inoperative dome/reading lamp.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair.
- Dome Lamp Bulb Replacement
- Center Reading Lamp Replacement
- Center Reading Lamp Bulb Replacement
- Control Module References for BCM replacement, programming, and setup
READ NEXT:
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.
Diag
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.
Diag
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.
Diag
SEE MORE:
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
Fastener Tightening Specifications
SCHEMATIC WIRING DIAGRAMS
WIPER/WASHER WIRINGSCHEMATICS (ENCORE)
Front Wiper/Washer Control and Wiper
Fig. 1: Front Wiper/Washer Control and Wiper
Rear Wiper/Washer Control and Wiper
Fig. 2: Rear Wiper/Washer
Owner Checks and Services
At Each Fuel Stop
Check the engine oil level. See
Engine Oil
Once a Month
Check the tire inflation
pressures. See Tire Pressure
Inspect the tires for wear. See
Tire Inspection
Check the windshield washer
fluid level. See Washer Fluid
Engine Oil Change
When the