Schematic Reference: Radio/Audio System Schematics

Did you perform the Radio/Audio System Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Radio/Audio System

1. Turn ON the ignition, with the engine OFF.
2. Turn ON the radio.
3. Adjust the radio balance and fade to the suspect speaker.

Does the speaker operate properly?

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

Go to Step 3

Is the vehicle equipped with an audio amplifier?

Go to Step 4

Go to Step 5

1. Turn OFF the ignition.
2. Disconnect the audio amplifier connector.
3. Using two fused jumpers, connect the suspect speaker inputs to the suspect speaker outputs of the audio amplifier in order to bypass the audio amplifier.
4. Turn ON the ignition, with the engine OFF.
5. Turn ON the radio.
6. Adjust the radio balance and fade to the suspect speaker.

Does the speaker operate properly?

Go to Step 8

Go to Step 5

1. Turn OFF the ignition.
2. Remove and disconnect the radio.
3. Momentarily touch a 1.5 volt battery between the appropriate speaker circuits.

Does the speaker emit an audible pop?

Go to Step 7

Go to Step 6

Test the circuits of the appropriate speaker for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 9

Inspect for poor connections at the harness connector of the radio. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 10

Inspect for poor connections at the harness connector of the audio amplifier. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 11

Inspect for poor connections at the harness connector of the speaker. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 12

Important:: Perform the setup procedure for the radio.

Replace the radio. Refer to Radio Replacement and Radio Setup for service procedure.

Did you complete the replacement?

Go to Step 13

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Replace the audio amplifier. Refer to Radio Speaker Amplifier Replacement for service procedure.

Did you complete the replacement?

Go to Step 13

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Replace the speaker. Refer to Radio Front Side Door Speaker Replacement or Radio Rear Speaker Replacement for service procedure.

Did you complete the replacement?

Go to Step 13

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

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Schematic Reference: Radio/Audio System Schematics

Did you perform the Radio/Audio System Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Radio/Audio System

1. Turn ON the ignition, with the engine OFF.
2. Turn ON the radio.
3. Adjust the radio balance and fade to the suspect speaker.

Does the speaker operate properly?

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

Go to Step 3

Is the vehicle equipped with an audio amplifier?

Go to Step 4

Go to Step 8

Can audio be heard from both subwoofer speakers?

Go to Step 8

Go to Step 5

Can audio be heard from either subwoofer speaker?

Go to Step 7

Go to Step 6

1. Turn OFF the ignition.
2. Test the audio amplifier battery positive voltage circuit for an open, high resistance, or a short to ground.
3. Test the audio amplifier ground circuit for an open or high resistance.

Did you find and correct the condition?

Go to Step 16

Go to Step 11

1. Disconnect the audio amplifier connector.
2. Test the appropriate speaker outputs of the audio amplifier for an open, high resistance, short to ground, or a short to voltage.

Did you find and correct the condition?

Go to Step 16

Go to Step 12

1. Turn OFF the ignition.
2. Remove and disconnect the radio.
3. Momentarily touch a 1.5 volt battery between the appropriate speaker circuits.

Does the speaker emit an audible pop?

Go to Step 10

Go to Step 9

Test the circuits of the appropriate speaker for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 16

Go to Step 12

Inspect for poor connections at the harness connector of the radio. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 16

Go to Step 13

Inspect for poor connections at the harness connector of the audio amplifier. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 16

Go to Step 14

Inspect for poor connections at the harness connector of the speaker. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 16

Go to Step 15

Important:: Perform the setup procedure for the radio.

Replace the radio. Refer to Radio Replacement and Radio Setup for service procedure.

Did you complete the replacement?

Go to Step 16

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Replace the audio amplifier. Refer to Radio Speaker Amplifier Replacement for service procedure.

Did you complete the replacement?

Go to Step 16

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Replace the speaker. Refer to Radio Front Side Door Speaker Replacement or Radio Rear Speaker Replacement for service procedure.

Did you complete the replacement?

Go to Step 16

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

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