Toyota Corolla (E120): Circuit description

The door control receiver receives a signal from the transmitter and sends this signal to the integration relay.

Then, the integration relay controls door operation by sending a door lock/unlock signal to each door lock motor.

Wiring diagram

Inspection procedure

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    Inspection procedure
    1 Inspect shift solenoid valve(sl) Remove the shift solenoid valve sl.  measure the resistance according to the value(s) in the table below. Standard: Connect the positive (+) battery lead to the solenoid connector terminal, and the negative (–) battery lead to the so ...

    Speed sensor front lh
    Replacement Hint: replace the rh side by the same procedure as the lh side. 1. Remove front wheel 2. Remove front fender liner lh 3. Remove speed sensor front lh Disconnect the speed sensor wire harness clamp from the body.  disconnect the speed sensor connector. Remo ...

    Problem symptoms table
    When the malfunction code is not confirmed in the diagnostic trouble code check and the problem still can not be confirmed in the basic inspection, proceed to this problem symptoms tables and troubleshoot according to the numbered order given below. *: A/t only ...