Multifunction Alarm Module Inoperative. Chevrolet Metro 1999

For 1990-2009 cars

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Audible Warnings System Check? | -- | Go to Step 2 | Go to Audible Warnings System Check

2

1. Turn the ignition switch to the LOCK position.
2. Open the LH front door.
3. Disconnect the audio alarm module connector.
4. Connect a test lamp from connector cavity 6 of the audio alarm module to B+.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3 | Connect a test lamp from connector cavity 5 of the audio alarm module to ground. Does the test lamp light? | -- | Go to Step 5 | Go to Step 6
4 | Use a test lamp in order to backprobe the connector cavity for the left door jamb switch to B+. Does the test lamp light? | -- | Go to Step 9 | Go to Step 10

5

1. Do not disconnect the test lamp.
2. Disconnect the junction block connector C4.

Does the test lamp light?

--

Go to Step 7

Go to Step 8

6 | Replace the audio alarm module. Is the repair complete? | -- | Go to Audible Warnings System Check | --
7 | Test the BLK/WHT wire for a short to B+ between connector C4 cavity 3 of the junction block, connector C3 cavity 11 of the instrument panel cluster assembly, and connector cavity 5 of the audio alarm module. Is there a short to B+ in the BLK/WHT wire? | -- | Go to Step 11 | Go to Step 12
8 | Replace the junction block. Is the repair complete? | -- | Go to Audible Warnings System Check | --
9 | Repair the open in the BLK/BLU wire between the audio alarm module and the left door jamb switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Audible Warnings System Check | --

10

1. Inspect for a poor ground connection at the left door jamb switch.
2. If the connection is OK, replace the left door jamb switch.

Is the repair complete?

--

Go to Audible Warnings System Check

--

11 | Repair the short to B+ in the BLK/WHT wire. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Audible Warnings System Check | --
12 | Replace the Instrument cluster printed circuit. Refer to Printed Instrument Cluster Circuit Replacement . Is the repair complete? | -- | Go to Audible Warnings System Check | --