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

Can either of the switches unlock the doors?

--

Go to Step 3

Go to Step 6

3

Test the BLU/WHT wire using a J 39200 DMM between connector C 1 cavity 1 of the multifunction alarm module and SP252 for an open.

Does the wire have an open?

--

Go to Step 4

Go to Step 5

4

Repair the open in the BLU/WHT wire or replace SP252 as needed. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Door Locks System Check

--

5

Replace the multifunction alarm module. Refer to Multifunction Alarm Module Replacement .

Is the repair complete?

--

Go to Power Door Locks System Check

--

6

Can either of the switches lock the doors?

--

Go to Step 7

Go to Step 5

7

Test the BLU/YEL wire using a J 39200 DMM between connector C 1 cavity 2 of the Multifunction Alarm Module and SP252 for an open.

Does the wire have an open?

--

Go to Step 8

Go to Step 5

8

Repair the open in the BLU/YEL wire or replace the SP252 as needed. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Door Locks System Check

--