GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Power Door Locks System Check performed?

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Go to Step 2

Go to Power Door Locks System Check

2

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

Is continuity present?

--

Go to Step 5

Go to Step 3

3

  1. Disconnect the the side door jamb switch connector.
  2. Connect a J 39200 between the side door jamb switch connector, cavity B for CKT 150 (BLK), and ground.

Is continuity present?

--

Go to Step 4

Go to Step 6

4

  1. Connect a fused jumper wire between B+ and the power door lock module connector, cavity F for CKT 158 (WHT/BLK).
  2. Connect an unpowered test light between the side door jamb switch connector, cavity A for CKT 158 (WHT/BLK), and ground.

Does the test lamp light?

--

Go to Step 7

Go to Step 8

5

Replace the power door lock control module.

Is the repair complete?

--

Go to Power Door Locks System Check

--

6

Repair the open in CKT 150 (BLK) between the side door jamb switch and ground G402 or ground G200 (with upfitter).

Refer to Wiring Repairs

Is the repair complete?

--

Go to Power Door Locks System Check

--

7

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

--

8

Repair the open 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

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