Toyota Corolla (E120): Circuit description

Hint:

Hint

: there is a case that hand–held tester cannot be used when ecu is abnormal.

Wiring diagram

Inspection procedure

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    On–vehicle inspection
    1. Inspect wireless door lock control functions Hint: the switch described in this text is a switch for transmitting signals (lock switch, unlock switch and panic switch) which is built into the door control transmitter. All the functions listed below must be checked in the remote contro ...

    Lower ball joint assy front lh
    Replacement Hint: components: 1. Inspect lower ball joint assy front lh Jack up front side of the vehicle.  check the rattle of the lower ball joint assy front lh. 2. Remove front wheel 3. Remove front axle hub lh nut sst 09930–00010 4. Disconnect speed sensor front lh (w/ ...

    On–vehicle inspection
    1. Horn button assy (vehicles not involved in collision) Check the diagnostic system . visually check the following item with the horn button assy (with airbag) installed in the vehicle. Check cuts, minute cracks or marked discoloration on the horn button assy top surface and in the ...