DTC B252E
DTC B252E |
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
has overviews of all diagnostic categories.
|
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 |
Child Door Lock Indicator Control
|
B252E 02
|
1
|
1
|
-
|
1. Child Door Lock Indicator Inoperative
|
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 |
• |
This DTC will be current for as long as the fault is present.
|
• |
When the fault is no longer present, the DTC will be a history DTC.
|
• |
A history DTC will clear after 50 ignition cycles.
|
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
• |
Circuit Testing
|
• |
Connector Repairs
|
• |
Testing for Intermittent Conditions and Poor Connections
|
• |
Wiring Repairs
|
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.
|
2. |
Connect a test lamp between the control circuit terminal 2 and B+.
|
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.
|
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.
|
5. |
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.
|
6. |
If all circuits test normal, replace S48A Multifunction Switch - Instrument Panel.
|
Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• |
Hazard Warning Switch Replacement
|
• |
Control Module References
for BCM replacement, setup and programming.
|