Toyota Corolla (E120): Circuit description

The key unlock warning switch comes on when the ignition key is inserted in the key cylinder and goes off when the ignition key is removed.

Wiring diagram

Inspection procedure

    Share this page:

    Other materials:

    Mechanical system tests
    1. Perform mechanical system tests Measure the stall speed. The object of this test is to check the overall performance of the transaxle and engine by measuring the stall speeds in the d and r positions. Notice: Do the test at normal operating atf temperature 50 to 80 °c (122 to ...

    Inspection procedure
    Hint: if dtcs p0115, p0116, p0117, p0118 and p0125 are output simultaneously, the engine coolant temperature sensor circuit may be open or short. Perform the troubleshooting of dtc p0115, p0117 or p0118 first. Read freeze frame data using the hand-held tester or the obd ii scan to ...

    Speaking on the phone
    The following screen is displayed when speaking on the phone. To adjust the call volume Select “-” or “+”. You can also adjust the volume using the steering switches or the volume knob. To prevent the other party from hearing your voice Select “Mute”. Inputting tones When using ...