GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Power Door Locks System Check performed?

--

Go to Step 2

Go to Power Door Locks System Check

2

  1. Disconnect the power door lock control module connector.
  2. Connect an unpowered test lamp between the power door lock control module, cavity G for CKT 540 (ORN), and ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 8

3

Connect a J 39200 between the power door lock control module connector, cavity A for CKT 150 (BLK), and ground.

Is continuity present?

--

Go to Step 4

Go to Step 9

4

  1. Close the side door.
  2. Connect a J 39200 between the power door lock control module connector, cavity F for CKT 158 (WHT/BLK), and ground.

Is continuity present?

--

Go to Step 5

Go to Step 6

5

  1. Disconnect the side door jamb switch connector.
  2. Connect a J 39200 between the power door lock control module connector, cavity F for CKT 158 (WHT/BLK), and ground.

Is continuity present?

--

Go to Step 10

Go to Step 11

6

  1. Connect an unpowered test lamp between the power door lock control module connector, cavity C for CKT 195 (LT BLU), and ground.
  2. Depress any power door lock switch to perform the lock operation.

Does the test lamp light?

--

Go to Step 7

Go to Step 12

7

  1. Connect an unpowered test lamp between the power door lock control module connector, cavity H for CKT 195 (LT BLU), and ground.
  2. Depress any power door lock switch to perform the lock operation.

Does the test lamp light?

--

Go to Step 13

Go to Step 14

8

Repair the open in CKT 540 (ORN) between splice S228 and the power door lock control module.

Refer to Wiring Repairs .

Is the repair complete?

--

Go to Power Door Locks System Check

--

9

Repair the open in CKT 150 (BLK) between the power door lock control module and ground G201 or ground G200 in vehicles with upfitter provisions.

Refer to Wiring Repairs .

Is the repair complete?

--

Go to Power Door Locks System Check

--

10

Repair the short to ground in CKT 158 (WHT/BLK) between the power door lock control module and the side door jamb switch.

Refer to Wiring Repairs .

Is the repair complete?

--

Go to Power Door Locks System Check

--

11

Replace the side door jamb switch.

Refer to Sliding Door Jamb Contact Plate Replacement .

Is the repair complete?

--

Go to Power Door Locks System Check

--

12

Repair the open in CKT 195 (LT BLU) between splice S241 and the power door lock control module connector, cavity C.

Refer to Wiring Repairs .

Is the repair complete?

--

Go to Power Door Locks System Check

--

13

Replace the power door lock control module.

Is the repair complete?

--

Go to Power Door Locks System Check

--

14

Repair the open in CKT 195 (LT BLU) between splice S241 and the power door lock control module connector, cavity H.

Refer to Wiring Repairs .

Is the repair complete?

--

Go to Power Door Locks System Check

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