Did you review the Radio/Audio System Operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Entertainment

Verify that the radio controls are inoperative.

Do the radio controls operate normally?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

Inspect all radio controls for any obstructions or foreign matter.

Did you find any obstructions or foreign material?

Go to Step 4

Go to Step 5

Clear all obstructions or foreign matter from the radio controls.

Is the repair complete?

Go to Step 6

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Replace the radio. Refer to Radio Replacement

Is the replacement complete?

Go to Step 6

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3