Toyota Corolla (E120): Door key lock and unlock switch circuit

Inspection procedure

Circuit description

Other materials:

Sound quality is bad only when cd is played(volume is too low)
Inspection procedure 1 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. Check and replace radio receiver assy ...

Cd cannot be taken out
Wiring diagram Inspection procedure 1 Check if radio auto–search functions properly Check if the radio auto–search function properly.  Perform the auto–research of the radio and check that the operation is normal. Standard: malfunction disappear. 2 Press ”eject� ...

Although system is powered,cd cannot be played
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 a normal audio cd, and that there is no deformation, flaw, stain, burr and other defects on the cd. Standard: normal audio cd. Reference: ...