1. Disconnect the radio connector C1.
2. Turn the ignition Switch to the RUN position.
3. Use the J 39200 Digital Multimeter (DMM) in order to measure the voltage between terminal 10 of the radio harness connector C1 and ground.

Does the voltage measure equal within the specified value?

B+

Go to Step 2

Go to Step 3

Use the J 39200 DMM in order to measure the voltage between terminal 5 and terminal 10 of the radio harness connector C1.

Does the voltage measure equal the specified value?

B+

Go to Step 4

Go to Step 5

Repair the open in CKT 1733 between the Multi-Function Alarm Module and the radio. Refer to Wiring Repair in Wiring Systems.

Is the repair complete?

--

System OK

--

Use the J 39200 in order to measure the voltage between terminal 5 and terminal 9 of the radio harness connector C1.

Does the voltage measure equal the specified value?

B+

Go to Step 6

Go to Step 7

Repair the open in CKT 350 between the radio and ground G303.

Is the repair complete?

--

System OK

--

Remove the radio for repair. Refer to radio in Instrument Panel, Gauges and Console.

Is the repair complete?

--

System OK

--

Repair the open in CKT 43 between the fuse block and the radio. Refer to Wiring Repair in Wiring Systems.

Is the repair complete?

--

System OK

--