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 speakers.

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. Refer to Radio Speaker Amplifier Replacement .
3. Test the appropriate speaker output circuits of the audio amplifier for a short to ground or short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 19

Go to Step 6

Is the vehicle equipped with an RSA control?

Go to Step 7

Go to Step 8

Momentarily touch a 1.5-volt battery between the appropriate speaker circuits at the audio amplifier connector.

Does the speaker emit an audible pop?

Go to Step 9

Go to Step 10

1. Turn OFF the ignition.
2. Disconnect the RSA control connector. Refer to Second Seat Audio Control Replacement .
3. Test the appropriate speaker output circuits of the RSA control for a short to ground or for a short to voltage. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 19

Go to Step 11

1. Turn OFF the ignition.
2. Disconnect the radio connector. Refer to Radio Replacement .
3. Momentarily touch a 1.5-volt battery between the appropriate speaker circuits.

Does the speaker emit an audible pop?

Go to Step 12

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 to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 19

Go to Step 13

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

Did you find and correct the condition?

Go to Step 19

Go to Step 14

Momentarily touch a 1.5-volt battery between the appropriate speaker circuits at the RSA control connector.

Does the speaker emit an audible pop?

Go to Step 15

Go to Step 10

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

Did you find and correct the condition?

Go to Step 19

Go to Step 16

Replace the audio amplifier. Refer to Radio Speaker Amplifier Replacement .

Did you complete the replacement?

Go to Step 19

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

Did you find and correct the condition?

Go to Step 19

Go to Step 17

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

Did you find and correct the condition?

Go to Step 19

Go to Step 18

Important: Perform the radio setup procedure for the radio.

Replace the radio. Refer to Radio Replacement .

Did you complete the replacement?

Go to Step 19

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Replace the speaker. Refer to the following procedures:

Did you complete the replacement?

Go to Step 19

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Replace the RSA control. Refer to Second Seat Audio Control Replacement .

Did you complete the replacement?

Go to Step 19

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2