PRE-RELEASE
DTC B252E
| DTC B252E |
| 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 B252E 00
Child Security Lock Switch Indicator Circuit Short to Ground
| Diagnostic Fault Information |
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
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Child Door Lock Indicator Control
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B252E 02
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1
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1
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-
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1. Child Door Lock Indicator Inoperative
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| Circuit/System Description |
The body control module (BCM) will provide a voltage and a ground for the child door lock indicator control circuit when the BCM receives a child door lockout command. The indicator will illuminate to indicate that the rear door latches have been disabled.
| Conditions for Running the DTC |
Battery voltage must be between 9-16 V.
| Conditions for Setting the DTC |
The DTC will set when the BCM detects a malfunction in the child security door lock switch signal circuit.
| Action Taken When the DTC Sets |
The indicator will be continuously illuminated.
| Conditions for Clearing the DTC |
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This DTC will be current for as long as the fault is present.
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When the fault is no longer present, the DTC will be a history DTC.
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A history DTC will clear after 50 ignition cycles.
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| Reference Information |
Schematic Reference
Door Lock/Indicator Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Power Door Locks 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 |
Ignition ON, command the Child Security Lock Indicator ON and OFF with a scan tool. The child door lockout indicator should turn ON and OFF while changing between the commanded states.
| Circuit/System Testing |
| 1. |
Ignition OFF, disconnect the harness connector at the S48A Multifunction Switch - Instrument Panel.
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| 2. |
Connect a test lamp between the control circuit terminal 2 and B+.
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| 3. |
Ignition ON, command the Child Security Lock Indicator ON and OFF with a scan tool. The test lamp should turn ON and OFF while changing between the commanded states.
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| 4. |
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.
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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 circuits test normal, replace S48A Multifunction Switch - Instrument Panel.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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Hazard Warning Switch Replacement
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Control Module References
for BCM replacement, setup and programming.
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