PRE-RELEASE
DTC B2615
| DTC B2615 |
| Diagnostic Instructions |
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Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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Diagnostic Procedure Instructions
has overviews of all diagnostic categories.
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| 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 |
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Courtesy Lamps Control
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B2615 02
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2
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1
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-
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1. Courtesy Lamps Always Illuminated
2. Courtesy Lamps do Not Illuminate |
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| 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.
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Dome/reading lamps
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Dome/Reading lamps row
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Accent lamp left lower Instrument Panel
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Accent lamp right lower Instrument Panel
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Accent lamp driver seat
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Accent lamp passenger seat
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Accent lamp driver door handle
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Accent lamp passenger door handle
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| 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 |
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The condition responsible for setting the DTC no longer exists.
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A history DTC will clear once 100 consecutive malfunction ignition cycles have occurred.
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| Reference Information |
Schematic Reference
Interior Lights Dimming Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Interior Lighting Systems Description and Operation
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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Scan Tool Reference
Control Module References for information on diagnostic tools
| 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 commanded states.
| Circuit/System Testing |
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Ignition OFF, disconnect the harness connectors at the appropriate inoperative backlighting component.
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| 2. |
Test for less than 5 Ω between the black wire of the component and ground.
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If greater than the specified range, test the ground circuit for an open/high resistance.
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Connect a test lamp between the control circuit of the component grey wire and ground.
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Command the Courtesy Lamps Dimming ON and OFF with a scan tool.
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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.
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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.
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If all circuit test normal, test or replace the appropriate inoperative component.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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Reading Lamp Replacement
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Front Floor Flood Lamp Replacement
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Front Side Door Sill Courtesy Lamp Replacement
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Rear Compartment Courtesy Lamp Replacement
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Control Module References
for BCM or instrument cluster replacement, setup, and programming
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