GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2005 🢒 CTS 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Automatic Door Locks Inoperative

Test Description

The number below refers to the step number on the diagnostic table.

  1. This step determines if the door jamb switch, also known as the door open switch, may be the cause of the malfunction. If the status of any door is interpreted as open, the rear integration module (RIM), which is the door lock master, will not permit the doors to automatically lock. If the scan tool display indicates that the door open/jamb switch is active when in fact the door is closed, it is likely that a failure has occurred to the door open/jamb switch or its circuits. Since the door open/jamb switch also controls courtesy lights, this failure is diagnosed in Lighting Systems.

    The door open/jamb switch must not be confused with the door ajar indicator switch, which has no affect on door locks.

Step

Action

Yes

No

Schematic Reference: Door Lock/Indicator Schematics

Connector End View Reference: Computer/Integrating Systems Connector End Views in Computer/Integrating Systems

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2
  1. Connect a scan tool.
  2. Turn the ignition ON, with the engine OFF.
  3. Read current personalization setting for the automatic door locks. Refer to Driver Personalization in Personalization for a description of door lock mode functions.
  4. Close all doors.
  5. Shift the gear selector out of PARK.
  6. Shift the gear selector into PARK.
  7. Turn OFF the ignition.

Did the power door locks operate as expected for the mode selected?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

With the scan tool, observe the Door Jamb Switch parameter of each door in each Door Module Data list.

Does the scan tool indicate that the Door Jamb Switch parameter is in the OFF state for all doors?

Go to Step 4

Go to Courtesy Lamps Always On in Lighting Systems

4

Inspect for poor connections at the harness connector of the rear integration module (RIM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 6

Go to Step 5

5

Important:: The Automatic Door Locks personalization mode must be reset following RIM replacement. Refer to Driver Personalization in Personalization.

Replace the RIM. Refer to Control Module References in Computer/Integrating Systems.

Did you complete the replacement?

Go to Step 6

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6

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2