GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC P42 Commercial Chassis 🢒 Body and Accessories 🢒 Instrument Panel, Gauges, and Console 🢒 Fasten Safety Belt Indicator/Chime Always On

Step

Action

Value(s)

Yes

No

1
  1. Disconnect the seat belt/lamps alarm module.
  2. Connect a test light from the seat belt/lamps alarm module connector, cavity B 2 to B +.

Did the test light illuminate?

--

Go to Step 3

Go to Step 2

2

Repair the open in CKT 250 (BLK) between the seat belt/lamps alarm module connector, cavity B 2 and G 200.

Is the repair complete?

--

System OK

--

3
  1. Turn the ignition switch to the RUN position.
  2. Disconnect the seat belt/lamps alarm module .

Does the fasten belts lamp remain illuminated?

--

Go to Step 5

Go to Step 4

4

Replace the seat belt/lamps alarm module.

Is the repair complete?

--

System OK

--

5
  1. Disconnect the instrument cluster connector.
  2. Connect a test light from the instrument cluster connector, cavity 30, to ground.

Does the test light illuminate?

--

Go to Step 6

Go to Step 7

6

Repair the short to B + in CKT 234 (YEL) between the seat belt/lamps alarm module connector, cavity C 2, and the instrument cluster connector, cavity 30.

Is the repair complete?

--

System OK

--

7

Replace the instrument cluster.

Is the repair complete?

--

System OK

--