Did you review the system operation and perform the necessary inspections?

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Go to Step 2

Go to Symptoms - Entertainment

1. Turn the ignition to the RUN position.
2. Turn the radio on.

Does the subwoofer operate normally?

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Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

1. Turn the ignition switch to the ACCY position.
2. Turn the radio on.
3. Insert a cassette or compact disc from J 39916-A .
4. Set the radio balance and fade controls to the detent (center) position.
5. Set the radio volume at the normal listening level.
6. Play the combination test tone from the cassette or CD.
7. Backprobe with a DMM between terminal A and terminal B of the inoperative speaker.

Does the meter reading vary above the specified value?

> 3V AC

Go to Step 4

Go to Step 6

Inspect for and repair a poor connection at the speaker. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a poor connection?

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Go to Step 12

Go to Step 5

Replace the speaker . Refer to Speaker Replacement .

Did you complete the replacement?

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Go to Step 12

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1. Turn the ignition switch to the OFF position.
2. Disconnect the amplifier connector.
3. Probe the amplifier connector between the speaker output (+) circuit and the speaker output (-) circuit of the inoperative speaker with a DMM. Refer to Circuit Testing in Wiring Systems.

Is the resistance within the specified range?

2-4ohms

Go to Step 7

Go to Step 10

Inspect the speaker output circuit and the speaker output circuit for a short to battery voltage or a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and repair a short?

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Go to Step 12

Go to Step 8

Inspect for and repair a poor connection at the amplifier. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a poor connection?

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Go to Step 12

Go to Step 9

Replace the amplifier. Refer to Radio Speaker Amplifier Replacement .

Did you complete the replacement?

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Go to Step 12

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Inspect for and repair a poor connection at the speaker. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a poor connection?

--

Go to Step 12

Go to Step 11

Repair an open in the speaker output (+) circuit or the speaker output (-) circuit between the speaker and the amplifier. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

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Go to Step 12

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Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3