Toyota Corolla (E120): Engine hood/door

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Terminals of ecu
Oscilloscope wave (*1) Hint: terminal: od – gnd gauge set: 5 v / div, 50 ms / div condition: during cruise control driving o/d switch on. ...

Other functions
■ Switching between outside air and recirculated air modes Press . The mode switches between outside air mode (indicator off) and recirculated air mode (indicator on) each time is pressed. ■ Defogging the windshield Defoggers are used to defog the windshield and front side windows ...

Sound quality is bad in all modes (volume is too low)
Wiring diagram Inspection procedure 1 Adjust sound quality Adjust the sound quality.  Operate the radio receiver assy to adjust the sound quality. Standard: malfunction disappear. 2 Compare it with another car of same model Compare it with another vehicle of the same mo ...