Did you perform the BCM diagnostic system check?

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Go to Step 2

Go to Diagnostic System Check - Body Control System in Body Control System

Did you perform the diagnostic system check for the theft deterrent?

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Go to Step 3

Go to Diagnostic System Check - Theft Deterrent

1. Turn the IP dimmer switch to the OFF position.
2. Turn the ignition switch to the RUN position.
3. Lower the driver's window in order to prevent lockout.
4. Close all the vehicle doors.
5. Observe the courtesy lights and open and close the driver's door.

Did the courtesy lights turn on with the driver's door open and turn off with the driver's door closed?

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Go to Step 4

Go to Step 11

1. Turn the IP dimmer switch to the OFF position.
2. Close all vehicle doors.
3. Turn the ignition switch from the RUN position to the OFF position.
4. Observe the courtesy lights and remove the key from the ignition key cylinder.

Did the courtesy lights turn on when removing the key from the ignition key cylinder?

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Go to Step 5

Go to Step 12

1. Remove the key from the ignition key lock cylinder.
2. Close all vehicle doors.
3. Observe the driver's door locks and press the lock .
4. Unlock the driver's door lock switch.
5. Observe the passenger's door locks and press lock.
6. Unlock the passenger door lock switch.

Do all doors lock and unlock when using either door lock switch?

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Go to Step 6

Go to Step 13

1. Turn the headlamp switch IP dimmer switch to the OFF position.
2. Remove the key from the ignition key cylinder lock.
3. Close all vehicle doors.
4. Observe the door locks and press the lock.
5. Unlock the buttons on the keyless entry transmitter.

Do the door locks operate when using the keyless entry transmitter?

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Go to Step 7

Go to Step 14

1. Close the rear compartment lid and latch it.
2. Turn the ignition switch to the RUN position.
3. Observe the Driver Information Display (DID) or trip computer, if equipped.

Is the rear compartment lid ajar indicator off?

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Go to Step 8

Go to Step 15

Inspect the sensitivity level of the shock sensor.

Is the shock sensitivity OK?

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Go to Step 9

Go to Step 16

1. Disconnect the shock sensor electrical connector.
2. Disconnect the BCM connector C2.
3. Use a DMM to measure the resistance between the BCM harness connector C2 terminal D14 and ground.

Is the resistance within the specified range?

∞

Go to Step 10

Go to Step 17

Verify the operation of the content theft deterrent system. Refer to Content Theft Deterrent (CTD) Operation .

Does the content theft deterrent system work as described in the system operation?

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Go to Step 18

Go to Step 19

The content theft deterrent system is malfunctioning due to a malfunction between the BCM and the driver's door lock ajar switch. Refer to Interior Lamps System Check in Lighting Systems.

Is the action complete?

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Go to Step 22

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The content theft deterrent system is malfunctioning due to a malfunction between the BCM and the ignition key alarm switch. Refer to Audible Warnings System Check in Instrument Panel, Gages and Console.

Is the action complete?

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Go to Step 22

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The content theft deterrent system is malfunctioning due to a malfunction between the BCM and the power door lock switches. Refer to Automatic Door Locks System Check in Doors.

Is the action complete?

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Go to Step 22

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The content theft deterrent system is malfunctioning due to a malfunction between the BCM and the keyless entry system. Refer to Remote Keyless Entry System Check in Keyless Entry.

Is the action complete?

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Go to Step 22

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The content theft deterrent system is malfunctioning due to a malfunction between the BCM and the rear compartment ajar switch input. Refer to Diagnostic System Check - Driver Information Systems in Instrument Panel, Gages and Console.

Is the action complete?

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Go to Step 22

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Adjust the shock sensor sensitivity.

Is the repair complete?

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Go to Step 22

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1. Leave the DMM connected (from step 9).
2. Disconnect the rear compartment lid lock electrical connector.
3. Use the DMM to measure the resistance again.

Is the resistance within the specified range?

∞

Go to Step 20

Go to Step 21

Malfunction is not present at this time. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems for further information.

Is the action complete?

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Go to Step 22

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1. Inspect the BCM connectors for poor terminal contact.
2. Make repairs as needed.
3. If connections are OK, replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Is the repair complete?

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Go to Step 22

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Replace the rear compartment lid lock.

Is the repair complete?

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Go to Step 22

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Repair a short to ground in circuit 1828.

Is the repair complete?

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Go to Step 22

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1. Turn the ignition switch to the OFF position.
2. Reinstall the connectors/components removed.
3. Turn the ignition switch to the RUN position for 6 seconds.
4. Turn the ignition switch to the OFF position.
5. Remove the MALL PGM fuse.
6. Turn the ignition switch to the ACC position. The BCM flashes the fasten seat belts indicator and sounds the chime 4 times identifying the BCM type installed on the vehicle.
7. Within 1 second, turn the ignition switch from the ACC position to the OFF position.
8. Turn the ignition switch back to the ACC position. The BCM sounds any DTCs stored.

Are there any BCM DTCs present?

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Go to Step 3

System OK