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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:

Inspection procedure
Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...

Ecm (1zzfe)
Replacement 1. Disconnect battery negative terminal 2. Remove glove compartment door assy 3. Remove ecm Remove the 2 clips using a clip remover. Then, open the cover. Disconnect the 4 ecm connectors.  remove the wire harness from the wire harness clamp. Remove the 2 ...

Evap monitor (vacuum pressure monitor) (continued)
Preconditions The monitor will not run unless: mil is off. Fuel level is approximately 1/2 to 3/4. Altitude is 7800 feet (2400 m) or less.* Engine coolant temperature (ect) is between 40f and 95f (4.4 C and 35 C). Intake air temperature (iat) is between 40f and 95 f (4 ...

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