GM Service Manual Online
For 1990-2009 cars only

Step

Action

Values

Yes

No

1

Inspect the chime module connector to make sure it is connected properly.

Is the connector disconnected or partially disconnected?

--

Go to Step 2

Go to Step 3

2

Connect the electrical connector for the chime module.

Is the repair complete?

--

System OK

--

3

Inspect fuse EF7 and F12.

Is fuse EF7 and F12 open?

--

Go to Step 4

Go to Step 5

4

  1. Inspect for a short circuit and repair it, if necessary.
  2. Replace the fuse.

Is the repair complete?

--

System OK

--

5

  1. Turn the ignition ON.
  2. Inspect the voltage at fuse EF7 and F12.

Is the specified voltage available at fuse EF7 and F12?

11-14 V

Go to Step 7

Go to Step 6

6

Repair the power supply circuit for fuse EF7 and F12.

Is the repair complete?

--

System OK

--

7

  1. Disconnect the chime module.
  2. Inspect the voltage at terminal 2 of the chime module connector.

Does the voltage equal the specified value?

11-14 V

Go to Step 13

Go to Step 8

8

  1. Disconnect the key reminder switch.
  2. Use an ohmmeter to check the continuity between the key reminder switch and fuse EF7 and F12.

Does the ohmmeter indicate the specified value?

0 ohms

Go to Step 10

Go to Step 9

9

Repair the open circuit between the key reminder switch and fuse EF7 and F12.

Is the repair complete?

--

System OK

--

10

With the key reminder switch and the chime module disconnected, check the continuity between the key reminder switch and terminal 2 of the chime module connector.

Does the ohmmeter indicate the specified value?

0 ohms

Go to Step 12

Go to Step 11

11

Repair the open circuit between the key reminder switch and terminal 2 of the chime module connector.

Is the repair complete?

--

System OK

--

12

Replace the key reminder switch.

Is the repair complete?

--

System OK

--

13

With the chime module disconnected, use an ohmmeter to check continuity between terminal 5 of the chime module connector and ground.

Does the ohmmeter indicate the specified value?

0 ohms

Go to Step 15

Go to Step 14

14

Repair the open circuit between terminal 5 of the chime module connector and ground.

Is the repair complete?

--

System OK

--

15

Replace the chime module.

Is the repair complete?

--

System OK

--