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Toyota Corolla Repair Manual: Although system is powered,cd cannot be played

Toyota Corolla Repair Manual / Diagnostics / Audio system / Although system is powered,cd cannot be played

Wiring diagram

Inspection procedure

1 Check if a proper cd is inserted

  1. Check that a proper cd is inserted.
  1.  Make sure that the cd is a normal audio cd, and that there is no deformation, flaw, stain, burr and other defects on the cd.

    Standard: normal audio cd.

Reference:

2 Check that a proper cd is inserted

2 Check that a proper cd is inserted

  1. Check that a proper cd is inserted.
  1.  Check whether or not the cd is inserted upside down.

    Standard: not upside down.

3 Disc cleaning

3 Disc cleaning

  1. Disk cleaning
  1.  if the disk gets dirty, clean the disk by wiping the surface from the center to outside in the radial directions with a soft cloth.

Notice

: do not use a conventional record cleaner or antistatic preservative.

4 Replace cd with another and recheck

4 Replace cd with another and recheck

  1. Replace the cd with another and recheck.
  1. Replace the faulty cd with the normal one to see if the same trouble occurs again.

    Standard: malfunction disappear.

5 Check if radio autosearch functions properly

5 Check if radio autosearch functions properly

  1. Check if the radio autosearch function properly.
  1.  Perform the autoresearch of the radio and check that the operation is normal.

    Standard: malfunction disappear.

6 Did the temperature in the cabin change rapidly?

6 Did the temperature in the cabin change rapidly?

  1. Did the temperature in the cabin change rapidly?
  1.  Check whether or not the rapid temperature change occurred in the cabin.

    Standard: the rapid temperature change occurred.

    Reference: the rapid temperature change creates condensation inside the cd player, which may disable playing cd.

Check and replace radio receiver assy

Check and replace radio receiver assy

7 Inspect radio receiver assy(+b, acc, gnd)

  1. Check that the continuity between terminals at each condition, as shown in the chart.

Standard:

  1. Check that the voltage between terminals at each condition, as shown in the chart.

Standard:

Repair or replace harness or connector

Repair or replace harness or connector

Cd cannot be inserted or is ejected right after insertion
Wiring diagram Inspection procedure 1 Check if a proper cd is inserted Check that a proper cd is inserted.  Make sure that the cd is normal audio cd, and that there is no deformati ...

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 ...

Other materials:

Checking monitor status
Hint: monitor result indicates normal or malfunction of each component and system when judgment has done. 1. How to read data Connect the handheld tester to the dlc 3.  enter monitor result from diagnosis / enhanced obd ii / monitor info / monitor result on the handheld ...

Inspection
1. Spark plug Notice: never use a wire brush for cleaning. Never attempt to adjust the electrode gap on used spark plug. Spark plug should be replaced every 192,000 km (120,000 miles). Clean the spark plugs. Air pressure: below 588 kpa (6.0 Kg/cm2, 85 psi) duration: 20 sec ...

The ambient temperature does not display
Wiring diagram Inspection procedure 1 Inspect outer ambient temperature sensor Remove cooler (ambient temp. Sensor) thermistor.  measure resistance between terminals 1 and 2 of cooler (ambient temp. Sensor) thermistor connector at each temperature. Resistance: at 0 c (0 f) ...

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