Volt L4-1.4L Elect (2011)
Immobilizer Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Keyless Entry System 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
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Ignition ON, observe the scan tool BCM Hood Ajar Switch parameter. With the hood open, the Hood Ajar Switch parameter should be Open. With the
hood closed, the Hood Ajar Switch parameter should be Closed.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the B55 hood ajar switch.
2. Ignition OFF, test for less than 10 ohm between the ground circuit terminal C and ground.
‹› If greater than the specified range, test the ground circuit for an open/high resistance.
3. Ignition ON, test for B+ between the signal circuit terminal B and ground
‹› If not the specified value, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM
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4. Ignition OFF, disconnect the harness connector X4 at the K9 BCM.
5. Ignition ON, test for less than 1 V between the signal circuit terminal C and ground.
‹› If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K9 BCM.
6. If all circuits test normal, test or replace the B55 hood ajar switch.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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Hood Primary and Secondary Latch Replacement (See: Body and Frame/Doors, Hood and Trunk/Hood/Hood Latch/Service and Repair)
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Control Module References for BCM replacement, programming and setup