GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Door Locks System Check?

--

Go to Step 2

Go to Power Door Locks System Check

2

Use a test lampJ 35616-200 in order to backprobe CKT 640 (ORN) cavity B or cavity F at the inoperative door lock switch to ground.

Does the test lamp light?

--

Go to Step 4

Go to Step 3

3

Repair the open in CKT 640 (ORN) between the inoperative door lock switch and splice S223.

Is the repair complete?

--

Go to Power Door Locks System Check

--

4

  1. Use a test lampJ 35616-200 in order to backprobe CKT 195 (LT BLU) cavity D at the inoperative door lock switch to ground.
  2. Place the door lock switch in the LOCK position.

Does the test lamp light?

--

Go to Step 6

Go to Step 5

5

Replace the inoperative door lock switch.

Is the repair complete?

--

Go to Power Door Locks System Check

--

6

  1. Use a test lampJ 35616-200 in order to backprobe CKT 194 (WHT) cavity H at the inoperative door lock switch to ground.
  2. Place the door lock switch in the UNLOCK position.

Does the test lamp light?

--

Go to Step 12

Go to Step 7

7

Replace the inoperative door lock switch.

Is the repair complete?

--

Go to Power Door Locks System Check

--

8

Operate the inoperative door lock switch in both the LOCK and the UNLOCK positions.

Is the LOCK position still inoperative?

--

Go to Step 9

Go to Step 10

9

Repair the open in CKT 195 (LT BLU) between the inoperative door lock switch and splice S232.

Is the repair complete?

--

Go to Power Door Locks System Check

--

10

Operate the inoperative door lock switch in both the LOCK and the UNLOCK position.

Is the UNLOCK position still inoperative?

--

Go to Step 11

Go to Step 12

11

Repair the open in CKT 194 (WHT) between the inoperative door lock switch and splice S231.

Is the repair complete?

--

Go to Power Door Locks System Check

--

12

Operate the inoperative door lock switch in both the LOCK and the UNLOCK positions.

Are both the LOCK and the UNLOCK positions still inoperative?

--

Go to Step 13

Go to Step 8

13

Replace the inoperative door lock switch.

Is the repair complete?

--

Go to Power Door Locks System Check

--