Step  | Action  | Value(s)  | Yes  | No  | 
|---|---|---|---|---|
1  | Did you review the Radio/Audio System Description and Operation and perform the necessary inspections?  | --  | Go to Step 2  | Go to Radio/Audio System Description Radio/Audio System Operation Radio/Audio System Circuit Description  | 
2  | 
 Do all of the speakers operate properly?  | --  | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems  | Go to Step 3  | 
3  | Are all of the speakers inoperative?  | --  | Go to Step 4  | Go to Step 10  | 
4  | Is the vehicle equipped with an amplifier?  | --  | Go to Step 5  | Go to Step 9  | 
5  | Test the battery positive voltage circuit of the amplifier for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?  | --  | Go to Step 21  | Go to Step 6  | 
6  | Test the radio on signal circuit of the amplifier for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?  | --  | Go to Step 21  | Go to Step 7  | 
7  | 
 Did you find and correct the condition?  | --  | Go to Step 21  | Go to Step 8  | 
8  | 
 Do the speakers operate properly?  | --  | Go to Step 17  | Go to Step 15  | 
9  | 
 Did you find and correct the condition?  | --  | Go to Step 21  | Go to Step 15  | 
10  | Is the vehicle equipped with an amplifier?  | --  | Go to Step 12  | Go to Step 11  | 
11  | 
 Does the speaker emit an audible pop?  | --  | Go to Step 15  | Go to Step 13  | 
12  | 
 Does the speaker emit an audible pop?  | --  | Go to Step 14  | Go to Step 13  | 
13  | Test the speaker circuits of the radio for an open, short to ground or a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?  | --  | Go to Step 21  | Go to Step 16  | 
14  | 
 Can audio be heard from the suspect speaker?  | --  | Go to Step 17  | Go to Step 15  | 
15  | Inspect for poor connections at the radio. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Did you find and correct the condition?  | --  | Go to Step 21  | Go to Step 18  | 
16  | Inspect for poor connections at the appropriate speaker. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Did you find and correct the condition?  | --  | Go to Step 21  | Go to Step 19  | 
17  | Inspect for poor connections at the amplifier. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Did you find and correct the condition?  | --  | Go to Step 21  | Go to Step 20  | 
18  | Replace the Radio. Refer to Radio Replacement . Did you complete the replacement?  | --  | Go to Step 21  | --  | 
19  | Replace the suspect speaker. Refer to Speaker Replacement . Did you complete the replacement?  | --  | Go to Step 21  | --  | 
20  | Replace the amplifier. Refer to Radio Speaker Amplifier Replacement . Did you complete the replacement?  | --  | Go to Step 21  | --  | 
21  | Operate the system in order to verify the repair. Did you correct the condition?  | --  | System OK  | Go to Step 2  |