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Toyota Corolla Repair Manual: Sound quality is bad only when cd is played(volume is too low)

Toyota Corolla Repair Manual / Diagnostics / Audio system / Sound quality is bad only when cd is played(volume is too low)

Inspection procedure

1 Replace cd with another and recheck

  1. Replace the cd with another and recheck.
  1.  Check the installation condition of the radio receiver assembly.

    Standard: malfunction disappear.

Check and replace radio receiver assy

Check and replace radio receiver assy

Cd cannot be taken out
Wiring diagram Inspection procedure 1 Check if radio autosearch functions properly Check if the radio autosearch function properly.  Perform the autoresearch of the radio and check ...

Cd sound skips
Inspection procedure 1 Disc cleaning Disk cleaning ) if the disk gets dirty, clean the disk by wiping the surface from the center to outside in the radial directions with a soft clo ...

Other materials:

Inspection
1. Windshield wiper switch assy Continuity check  check the continuity of each terminal of the connector. Front wiper switch Standard: Front washer switch Standard: W/o intermittent time adjust: intermittent operation check  connect the voltmeter (+) te ...

Malfunction in speedometer
Wiring diagram Inspection procedure 1 Check combination meter assy Remove the combination meter assy with connector still connected.  check voltage.  Jack up either of the front wheels.  Shift the shift lever to neutral.  Turn the ignition switch to on ...

Circuit description
When a misfire occurs in the engine, hydrocarbons (hc) enter the exhaust in high concentrations. If this hc concentration is high enough, there could be an increase in exhaust emissions levels. High concentrations of hc passing through the catalyst also cause to temperature of the catalyst to ...

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