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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 Too Loud at Low Settings

Audio Too Loud at Low Settings

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 Too Loud at Low Settings

Step Action Yes No
Schematic Reference:  Radio/Audio System Schematics  
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 radio.
  2. Adjust the volume to the lowest setting that can be heard.
Is the lowest audible setting too loud?
Go to Step 3  Go to Audio System Troubleshooting Hints 
3 Using a scan tool, observe the audio amplifier parameter in the system configuration data list.
Does the scan tool indicate that the audio amplifier is not present?
Go to Step 5  Go to Step 4 
4 Compare the volume to a similar vehicle with the same audio system.
Are both vehicles the same?
System OK Go to Step 7 
5 Test the gain control signal circuit 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 11  Go to Step 6 
6
  1. Turn OFF the ignition.
  2. Disconnect the audio amplifier
  3. Connect a 3 amp fused jumper between the amplifier signal circuit and ground.
  4. Turn ON the ignition, with the engine OFF.
Does the scan tool indicate that the audio amplifier is present?
Go to Step 8  Go to Step 7 
7 Inspect for poor connections at the harness connector of the radio. 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 11  Go to Step 9 
8 Inspect for poor connections at the harness connector of the audio amplifier. 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 11  Go to Step 10 
9 Replace the radio. Refer to Radio Replacement .
Did you complete the replacement?
Go to Step 11  -
10 Replace the audio amplifier. Refer to Amplifier Replacement .
Did you complete the replacement?
Go to Step 11  -
11 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 2