PRE-RELEASE
Hood Ajar Indicator/Message Malfunction
| Hood Ajar Indicator/Message Malfunction |
| 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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| Diagnostic Fault Information |
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
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Hood Ajar Switch Signal
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B3006 02
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B3006 04
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B3006 01
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-
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Ground
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-
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B3006 04
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-
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-
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| Circuit/System Description |
The body control module (BCM) monitors the voltage input of the hood ajar switch signal circuit.
| Reference Information |
Schematic Reference
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Immobilizer Schematics
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Remote Function Schematics
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Theft Deterrent System Schematics
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Connector End View Reference
Component Connector End Views
Description and Operation
Keyless Entry System Description and Operation (without ATH) Keyless Entry System Description and Operation (with ATH)
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 scan tool information
| Circuit/System Verification |
Ignition ON, observe the scan tool BCM Hood Position parameter. With the hood open, the Hood Position parameter should read open. With the hood closed, the Hood Position parameter should read closed.
| Circuit/System Testing |
| 1. |
Ignition OFF, disconnect the harness connector at the B55 Hood Ajar Switch.
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| 2. |
Ignition OFF, test for less than 8 Ω between the ground circuit terminal C and ground.
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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. |
Ignition ON, test for greater 11 V between the signal circuit terminal B and ground.
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| 5. |
If less than the specified range, test the signal circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the B55 Hood Ajar Switch.
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| 6. |
If all circuits test normal, test or replace the K9 Body Control Module.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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Hood Primary Latch Replacement
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Control Module References
for BCM replacement, programming, and setup
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