i-290 2WD L4-2.9L (2008)
‹› If the door locks do not UNLOCK, test for a short to voltage or open/high resistance in the Driver Door Lock/ Window Switch UNLOCK
signal circuit.
6. If all circuits test normal, replace the BCM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble
Code Tests and Associated Procedures/Diagnostic Repair Verification) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming
Symptoms - Vehicle Access
Symptoms - Vehicle Access
Important: The following steps must be completed before using the symptom tables.
1. Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) before using the Symptom Tables in order to verify that all of the following are true:
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There are no DTCs set.
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The control modules can communicate via the serial data link.
2. Review the system operation in order to familiarize yourself with the system functions. Refer to the following system descriptions:
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Door Ajar Indicator Description and Operation (See: Instrument Panel, Gauges and Warning Indicators/Door/Trunk Ajar
Indicator/Lamp/Description and Operation)
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Power Door Locks Description and Operation (See: Body and Frame/Locks/Power Locks/Description and Operation)
Visual/Physical Inspection
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Inspect for aftermarket devices which could affect the operation of the door systems. Refer to Checking Aftermarket Accessories (See: Testing and
Inspection/Component Tests and General Diagnostics/Checking Aftermarket Accessories).
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Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections (
See: Testing and Inspection/Component Tests and General Diagnostics/Circuit Testing/Testing For Intermittent Conditions and Poor Connections).
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
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Automatic Door Locks Inoperative (See: Body and Frame/Locks/Testing and Inspection/Automatic Door Locks Inoperative)
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Door Ajar Indicator Malfunction (See: Body and Frame/Locks/Testing and Inspection/Door Ajar Indicator Malfunction)
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Power Door Locks Inoperative (See: Body and Frame/Locks/Testing and Inspection/Power Door Locks Inoperative)