Was the entire Radio/Audio System System Check performed?

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Go to Step 2

Go to Radio/Audio System Check

1. Disconnect the radio harness connector C1.
2. Connect a test light.
3. Probe between the radio harness connector C1 terminal 10 and ground.

Does the test light illuminate?

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Go to Step 3

Go to Step 4

1. Connect a test light.
2. Probe between the radio harness connector C1 terminal 10 and 5.

Does the test light illuminate?

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Go to Step 5

Go to Step 6

Repair a poor connection or open in circuit 640.

Is the repair complete?

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Go to Step 9

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1. Connect a test light.
2. Probe between the radio harness connector C1 terminal 5 and 9.
3. Turn the ignition switch to the RUN position.

Does the test light illuminate?

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Go to Step 7

Go to Step 8

Repair a poor connection or open in circuit 650.

Is the repair complete?

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Go to Step 9

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Service the radio. Refer to Radio Replacement Radio Replacement

Is the repair complete?

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Go to Step 9

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Repair the poor connection or open in circuit 43.

Is the repair complete?

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Go to Step 9

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1. Turn the ignition switch to the OFF position.
2. Reconnect all connectors/components removed.

Have all the repairs been made?

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Go to Radio/Audio System Check

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