DEFINITION: The SECURITY indicator is ON (or flashing) at all times or is inoperative.

Were you sent here from the UTD Diagnostic System Check?

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Go to Step 2

Go to

UTD Diagnostic System Check

Using a scan tool, try to establish communications with the BCM, LDCM, RDCM, and PCM systems.

Can the scan tool communicate with the BCM, LDCM, RDCM, and PCM systems?

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Go to Step 3

Go to Step 9

Using a scan tool, select IPC output functions and command the SECURITY indicator ON and OFF.

Does the SECURITY indicator turn ON and OFF with each command?

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Go to Step 4

Go to IPC Diagnostic System Check

Using the power door lock switches, operate the driver and passenger door locks.

Do the power door locks operate correctly?

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Go to Step 5

Go to Power Door Lock Diagnosis

1. Close both the driver and passenger doors.
2. Turn ON the ignition switch.

Is the door ajar message displayed?

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Go to Door Ajar Message Diagnosis

Go to Step 6

Open the driver or passenger door

Is the door ajar message displayed?

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Go to Step 7

Go to Door Ajar Message Diagnosis

Turn ON the ignition switch.

Is the SECURITY indicator ON or flashing?

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Go to Step 10

Go to Step 8

Inspect the following circuits for an intermittent malfunction

Was a problem found and repaired?

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Go to Step 11

System OK

Repair the no communication malfunction to the system that could not communicate with the scan tool. Refer to the appropriate Diagnostic System Check that applies to the system that did not communicate.

Is the repair complete?

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Go to Step 11

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Using a scan tool, check any DTC that affect UTD performance. Refer to DTC list.

Are any of these DTC stored?

Go to Applicable DTC Table

System OK

1. Turn OFF the ignition switch.
2. Reconnect or install any connectors or components that were disconnected or removed.
3. Turn ON the ignition switch.

Is the repair complete?

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Go to

UTD Diagnostic System Check

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