1. Turn the ignition switch off.
2. Disconnect the speaker connector.
3. With a J 39200 digital multimeter (DMM), measure the resistance of the speaker.

Is the resistance within the specified range?

4-15 ohms

Go to Step  2

Go to Step  5

1. Disconnect the inoperative speaker.
2. With a J 39200 DMM, measure the resistance at the inoperative speaker connector from cavity A to ground.

Is the resistance infinite?

--

Go to Step  3

Go to Step  6

With a J 39200 DMM, measure the resistance at the speaker from cavity B to ground.

Is the resistance infinite?

--

Go to Step  4

Go to Step  6

Use a J 39200 DMM in order to test both speaker feed wires for continuity between the speaker and the radio.

Does continuity exist?

--

Go to Step  8

Go to Step  7

Replace the speaker. Refer to

Is the repair complete?

--

System OK

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Repair the short to ground in the speaker feed circuit.

Is the repair complete?

--

System OK

--

Repair the open in the speaker feed circuit.

Is the repair complete?

--

System OK

--

Service the radio. Refer to Radio Replacement .

Is the repair complete?

--

System OK

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