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Audio Distortion - One or More Speakers

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Audio Distortion - One or More Speakers

Step Action Yes No
Schematic Reference: Radio/Audio System Schematics (Base/Uplevel Radio - UQ3/UQ5) Radio/Audio System Schematics (Premium Radio - UQ7 w/o Y91) Radio/Audio System Schematics (Luxury Radio - UQ7 w/Y91)  or Video System Schematics 
Connector End View Reference: Entertainment Connector End Views 
DEFINITION: This table is used for vehicles equipped with an audio amplifier.
1 Did you perform the Radio/Audio System Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Entertainment System 
2
  1. Turn ON the ignition, with the engine OFF.
  2. Turn ON the radio.
  3. Adjust the fade and balance controls to mid range.
  4. Insert the tape or CD from the J 39916-A  CD and Cassette Diagnostic Audio Kit.
Can audio distortion be heard from any speaker?		 Go to Step 3  Go to Testing for Intermittent Conditions and Poor Connections
3 Test the appropriate speaker output circuits between the radio and the audio amplifier 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 8  Go to Step 4 
4 Is the vehicle equipped with Rear Seat Entertainment (U32) ? Go to Step 5  Go to Step 6 
5 Test the video entertainment circuits: remote playback device left and right audio circuits and the remote playback device common audio circuit for an open, short to ground or a short to B+. Refer to Circuit Testing andWiring Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 8  Go to Step 6 
6 Inspect for poor connections at the harness connector of the speaker. Refer to Testing for Intermittent Conditions and Poor Connections andConnector Repairs in Wiring Systems.
Did you find and correct the condition?		 Go to Step 8  Go to Step 7 
7 Replace the speaker. Refer to Speaker Replacement Reference 
Did you complete the replacement?		 Go to Step 8  -
8 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK -
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