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
provides an overview of each diagnostic category.
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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 |
| 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.
| 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 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
| Circuit/System Verification |
Command the Courtesy Lamps ON and OFF with a scan tool. The courtesy lamps should turn ON and OFF when changing between commanded states.
| Circuit/System Testing |
| 1. |
Disconnect the harness connector at the appropriate courtesy lamp.
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| 2. |
Ignition OFF, scan tool OFF, doors CLOSED, interior lamps OFF, test for less than 5.0 Ω between the ground circuit terminal listed below and ground:
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Instrument Panel Courtesy Lamp - terminal 2
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Door Courtesy Lamp - terminal 2
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Overhead Console Courtesy/Reading Lamp - terminal 2
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Rear Courtesy/Reading Lamp - terminal B
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| 3. |
If greater than the specified range, test the ground circuit for an open/high resistance.
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| 4. |
Connect a test lamp between the control circuit terminal listed below and ground:
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Instrument Panel Courtesy Lamp - terminal 1
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Door Courtesy Lamp - terminal 1
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Overhead Console Courtesy/Reading Lamp - terminal 3
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Rear Courtesy/Reading Lamp - terminal C
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| 5. |
Command the Courtesy Lamps ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
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| 6. |
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 BCM.
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| 7. |
If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
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| 8. |
If all circuits test normal, replace the courtesy lamp.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic repair.
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Refer to the appropriate replacement procedure for the lighting component that requires replacement.
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Control Module References
for BCM replacement, programming and setup
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