Toyota Corolla (E120): 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 cloth.
Notice
: do not use a conventional record cleaner or anti–static preservative.
Standard: malfunction disappear.


2 Replace cd with another and recheck
- Replace the cd with another and recheck.
- Check the installation condition of the radio receiver assembly.
Standard: malfunction disappear.


3 Check when this happens
- Check then this happens.
- Check that in what condition (place) noise occurs.
Standard: driving on the bumpy road.


4 Compare it with another car of same model
- Compare it with another vehicle of the same model.
- Compare with the vehicle of the same type which does not have a
trouble to see if there is any
difference in the condition of trouble occurrence.
Standard: no difference found.


Disc cleaning
- Check of radio receiver assembly installation.
- Check the installation condition of the radio receiver assembly.
Standard: installed properly.


6 Did the temperature in the cabin change rapidly?
- Did the temperature in the cabin change rapidly?
- 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
Other materials:
Components
...
Continuously variable transmission
(vehicles without paddle
shift switches)
Select the shift position
depending on your purpose
and situation.
Shift position purpose
and functions
P - Parking the vehicle/
starting the engine
R - Reversing
N - Neutral
(Condition in which the
power is not transmitted)
D - Normal driving*
B - Applying moderate
engine braking driving
down hills ...
Inspection procedure
1 Inspect dlc3 terminal voltage
Turn the ignition switch to on.
measure voltage between terminals 13 (tc) and 4 (cg) of
dlc3.
Ok:
voltage: 10 – 16 v
2 Check harness and connector(between cruise control ecu assy
and dlc3)
Check for open and short circuit in harness ...


