GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Audible Warnings System Check?

--

Go to Step 2

Go to Audible Warnings System Check

2

  1. Disconnect the connector at the multi-function alarm module.
  2. Place the key in the ignition switch.
  3. Open the driver's side door.
  4. Connect a J 39200 DMM between the multi-function alarm module connector, cavity C1 for CKT 80 (LT GRN), and ground.

Is continuity present?

--

Go to Step 3

Go to Step 4

3

Replace the multi-function alarm module. Refer to Multifunction Alarm Module Replacement .

Is the key-in-ignition chime operative?

--

Go to Audible Warnings System Check

Go to Step 4

4

  1. Disconnect connector C200 at the steering column.
  2. Connect a J 39200 DMM between cavity B3 for the pigtail wire of CKT 80 (LT GRN), and cavity B4 for the pigtail wire of CKT 159 (TAN), OF connector C200.

Is continuity present?

--

Go to Step 7

Go to Step 5

5

Repair the open in the pigtail wire of CKT 80 (LT GRN) or CKT 159 (TAN).

Is the key-in-ignition chime operative?

--

Go to Audible Warnings System Check

Go to Step 6

6

Replace the key-in warning switch.

Is the key-in-ignition chime operative?

--

Go to Audible Warnings System Check

Go to Step 7

7

  1. Disconnect the connector at the left front door jamb switch.
  2. Connect a J 39200 DMM between connector C200, cavity B4, and the left front door jamb switch connector, cavity C, for CKT 159 (TAN).

Is continuity present?

--

Go to Step 9

Go to Step 8

8

Repair the open in CKT 159 (TAN) between connector C200 and the left front door jamb switch.

Is the key-in-ignition chime operative?

--

Go to Audible Warnings System Check

Go to Step 9

9

Connect a J 39200 DMM between the left front door jamb switch connector cavity D for CKT 150 (BLK), and ground.

Is continuity present?

--

Go to Step 10

Go to Step 11

10

Replace the left front door jamb switch.

Is the key-in-ignition chime operative?

--

Go to Audible Warnings System Check

--

11

Repair the open in CKT 150 (BLK) between the left front door jamb switch and ground G200 (upfitter package), or ground G201 (base vehicle.)

Is the key-in-ignition chime operative?

--

Go to Audible Warnings System Check

--