LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1330 (Entertainment System) >> Diagnostic Information and Procedures >> Audio Distortion - One or More Speakers

Audio Distortion - One or More Speakers

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
Audio Distortion - One or More Speakers

Step Action Yes No
Schematic Reference: Radio/Audio System Schematics 
DEFINITION: This table is used for vehicles equipped with a radio amplifier.
1 Did you perform the Radio/Audio System Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Radio/Audio 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  . See Special Tools and Equipment .
Can audio distortion be heard from any speaker?
Go to Step 3  Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
3 Test the appropriate radio speaker output circuits between the radio and the radio 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 6  Go to Step 4 
4 Inspect for poor connections at the harness connector of the appropriate speaker. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 6  Go to Step 5 
5 Replace the speaker. Refer to Speaker Replacement - Rear  or to Speaker Replacement - Front Lower .
Did you complete the replacement?
Go to Step 6  -
6 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 2