For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
Important: : Cycle the ignition switch in order to verify the symptom before proceeding with this diagnostic procedure.
1 | Did you perform the Interior Lamps Diagnostic System Check? | -- | Go to Step 2 | Go to Interior Lamps System Check
2 |

1. Disconnect the multi-function alarm module connector.
2. Open the suspect front door.
3. Connect a test lamp between the appropriate points:

• | Left door: connector C1 terminal H and connector C2 terminal D

• | Right door: connector C1 terminal G and connector C2 terminal D

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3 |

1. Leave the test lamp connected.
2. Close the suspect front door.

Does the test lamp light?

--

Go to Step 7

Go to Step 5

4 | Test the following CKTs for an open:

• | (Left door) CKT 394 and CKT 150

• | (Right door) CKT 395 and CKT 250

Are all of the CKTs OK?

--

Go to Step 6

Go to Step 10

5 | Test the following CKTs for an open:

• | (Left door) CKT 394

• | (Right door) CKT 395

Are all of the CKTs OK?

--

Go to Step 6

Go to Step 10

6 | Replace the suspect door handle switch. Refer to Outside Handle and Lock Cylinder Replacement in Doors. Is the repair complete? | -- | Go to Interior Lamps System Check | --
7 | Use a DMM to measure the resistance between connector C2 terminal G and connector C2 terminal F Is the resistance less than the specified value? | 10 ohms | Go to Step 8 | Go to Step 9
8 | Replace the multifunction alarm module. Refer to Multifunction Alarm Module Replacement in Instrument Panel, Gauges, and Console. Is the repair complete? | -- | Go to Interior Lamps System Check | --
9 | Inspect CKT 156 and CKT 1732 for an open. Repair if necessary. Is the repair complete? | -- | Go to Interior Lamps System Check | --
10 | Repair the faulty CKT. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Interior Lamps System Check | --