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Home >> Cadillac >> 2007 >> CTS V >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrument Panel System Displays And Gauges >> Diagnostic Information and Procedures >> Door Ajar Indicator Malfunction >> Test Description

Test Description

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

  1. 6:  This step determines if the door lock actuator may be the cause of the malfunction.If the 3-amp jumper wire fuse opens when the jumper wire is connected, test the signal circuit for a short to voltage.
Door Ajar Indicator Malfunction

Step Action Yes No
Schematic Reference: Door Lock Schematics or Instrument Cluster Schematics 
Connector End View Reference: Vehicle Access Connector End Views or Displays and Gages Connector End Views 
DEFINITION: Diagnosis of one of the following driver information center (DIC) messages:
  • DRIVER DOOR AJAR
  • PASSENGER DOOR AJAR
  • LEFT REAR DOOR AJAR
  • RIGHT REAR DOOR AJAR
1 Did you perform the Diagnostic System Check -Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2 Verify that the Door Ajar Indicator Malfunction complaint is present.
Does the Door Ajar Indicator System operate as described in the System Description and Operation?		 Go to Testing for Intermittent Conditions and Poor Connections Go to Step 3 
3
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. Close all doors.
  4. With the scan tool, observe the parameter of each door ajar switch in each door modules Data Display Inputs list:
    • Driver Door Ajar Switch
    • Passenger Door Ajar Switch
    • Left Rear Door Ajar Switch
    • Right Rear Door Ajar Switch
Does the scan tool indicate that the Door Ajar Switch parameter is in the OFF state for all doors?		 Go to Step 4  Go to Step 5 
4
  1. Open all of the vehicle doors.
  2. With the scan tool, observe the parameter of each door ajar switch in each door modules Data Display Inputs list:
    • Driver Door Ajar Switch
    • Passenger Door Ajar Switch
    • Left Rear Door Ajar Switch
    • Right Rear Door Ajar Switch
Does the scan tool indicate that the Door Ajar Switch is in the ON state for all doors?		 Go to Testing for Intermittent Conditions and Poor Connections Go to Step 6 
5
  1. Turn OFF the ignition.
  2. Disconnect the suspect door lock actuator.
  3. Turn ON the ignition, with the engine OFF.
  4. With the scan tool, observe the appropriate Door Ajar Switch parameter.
Does the scan tool display OFF?		 Go to Step 11  Go to Step 9 
6 
  1. Turn OFF the ignition.
  2. Disconnect the suspect door lock actuator.
  3. Connect a 3-amp fused jumper wire between the door ajar switch signal circuit and the ground circuit of the door lock actuator harness connector.
  4. Turn ON the ignition, with the engine OFF.
  5. With the scan tool, observe the appropriate Door Ajar Switch parameter.
Does the scan tool display ON?		 Go to Step 11  Go to Step 7 
7 Test the ground circuit of the door lock actuator for an open or high resistance. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 14  Go to Step 8 
8 Test the door ajar switch signal circuit of the door lock actuator for the following conditions:
  • An open
  • A short to voltage
  • A high resistance

Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 14  Go to Step 10 
9 Test the door ajar signal circuit of the door lock actuator for a short to ground. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 14  Go to Step 10 
10 Inspect for poor connections at the harness connector of the suspect door module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?		 Go to Step 14  Go to Step 12 
11 Inspect for poor connections at the harness connector of the suspect door lock actuator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?		 Go to Step 14  Go to Step 13 
12
IMPORTANT: Perform the setup procedure for the replacement door module. Refer to Door Control Module Programming and Setup .
Replace the door module. Refer to Control Module References for replacement, setup and programming.Did you complete the replacement?		 Go to Step 14  -
13 Replace the suspect door lock actuator. Refer to Front Side Door Latch Replacement or Rear Door Latch Replacement .
Did you complete the replacement?		 Go to Step 14  -
14 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 2 
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