GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: DOOR AJAR message is inoperative from one or more doors.

1

Did you review the operation and perform the necessary inspections?

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Go to Step 2

Go to Symptoms

2

Turn ON the ignition, with the engine OFF.

During bulb check did the IP message display display the battery indicator?

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Go to Step 3

Go to Step 4

3

Is the DOOR AJAR message inoperative from one door only?

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Go to Step 5

Go to Step 6

4

Replace the IPC. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges, and Console.

Important: Perform the set up procedure for the IP.

Did you complete the replacement and the set up procedure?

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Go to Step 10

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5

Test the signal circuit of the suspect door ajar switch for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 10

Go to Step 7

6

Repair the poor connection or open in the signal circuit of the door ajar switch. Refer to Wiring Repairs or Connector Repairs in Wiring Systems.

Is the repair complete?

--

Go to Step 10

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7

Test the ground circuit of the suspect door ajar switch for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 10

Go to Step 8

8

Inspect for poor connections at the harness connector of the suspect door ajar indicator switch/door jamb switch. 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 10

Go to Step 9

9

Replace the suspect door lock ajar indicator switch or door jamb switch. Refer to Front Side Door Lock Replacement or Sliding Door Rear Lock Replacement .

Did you complete the replacement?

--

Go to Step 10

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10

  1. Turn ON the ignition, with the engine OFF.
  2. Open each of the vehicle doors one at a time. (Only one door is open at a time.)
  3. Observe the instrument cluster.

Does the IP display the DOOR AJAR message for each door?

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System OK

Go to Step 2