Grand Prix V6-3.1L VIN J (2000)
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An open in the circuit
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A short in the circuit
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A faulty component
Complete the following steps in order to test the BCM outputs:
1. Ensure the BCM is in the diagnostic mode.
2. Turn the IP dimmer switch to the DOME position.
The BCM enters the output test. The output test has 7 steps:
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Test 1 de-energizes CKT 1993 and turns off all of the interior lamps.
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Test 2 energizes CKT 1393 and provides power to all of the interior lamps.
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Test 3 grounds CKT 690 and turns on all of the courtesy lamps.
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Test 4 energizes the theft deterrent relay for 1 second by grounding CKT 352 and turns on all of the headlamps (BCM type 4 only).
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Test 5 energizes the horn relay for 25 ms by grounding CKT 28 and sounds the horn (BCM type 4 only).
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Test 6 turns on the theft deterrent indicator lamp by grounding CKT 749 (BCM type 4 only).
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Test 7 turns off the theft deterrent indicator lamp by opening CKT 749 (BCM type 4 only).
The BCM completes the output steps in numerical order.
In order to move to the next test, cycle the IP dimmer switch from the dome position, to OFF then back to DOME. The BCM sounds the chime a number
of times equivalent to the output test number above.
Exiting Diagnostics
Perform the following procedure in order to exit the BCM diagnostics mode and return to normal BCM operation:
1. Turn the ignition switch to the OFF position.
2. Reinstall the MALL PGM fuse.
3. Turn the ignition switch to the RUN position.
General Information
The Body Control Module (BCM) provides diagnostics to assist service technicians during troubleshooting. The BCM has the following diagnostic
capabilities when entering the diagnostics mode:
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Diagnostic Trouble Codes (DTCs)
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Input/Output tests
Identifying The Diagnostic Trouble Codes
