Was the Content Theft Deterrent System Check performed?

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Go to Step 2

Go to Diagnostic System Check - Theft Deterrent .

1. Install the scan tool.
2. Select BODY CONTROL MODULE.
3. Select MISCELLANEOUS TEST from the Output Control menu.
4. Select SECURITY TELLTALE.
5. While observing the Security Indicator Lamp, press the ON key on the scan tool.

Does the Security Indicator Lamp light?

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Go to Step 3

Go to Step 4

Check for poor connections at the BCM.

Was a problem found and corrected?

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Go to Diagnostic System Check - Theft Deterrent .

Go to Step 4

Use the scan tool to cycle the ON and OFF key.

Does the status change when cycling the ON/OFF key?

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Go to Step 5

Go to Step 6

1. Check all the power circuits to the BCM.
2. Check all the ground circuits to the BCM.
3. Replace the BCM if the circuits are OK and if no poor connections were found. Refer to Body Control Module.

Is the replacement complete?

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Go to Diagnostic System Check - Theft Deterrent .

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1. Disconnect the BCM connector C2.
2. Disconnect the connector from the Gauge Cluster.
3. Using DMM J 39200 on the ohms scale, measure the resistance in circuit XP840, between terminals C06 of the BCM and 23 of the Gauge Cluster.

Is the resistance within the specified value?

Less than 5 ohms

Go to Step 7

Go to Step 8

1. Remove the Gauge Cluster.
2. Inspect the security indicator bulb.
3. Inspect the printed circuit.
4. Repair as necessary.

Is the repair complete?

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Go to Diagnostic System Check - Theft Deterrent .

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1. Locate an open or a high resistance in circuit XP840.
2. Repair the open or the high resistance in circuit XP840.

Is the repair procedure complete?

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Go to Diagnostic System Check - Theft Deterrent .

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