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

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    Check and replace ecu
    Notice: start an inspection of the connector from the backside of the connector on the wire harness side with the connector connected to the ecu. When no measurement condition is specified, perform the inspection with the engine stopped and also the ignition switch on. First check the ec ...

    Rear axle beam assy
    Replacement Hint: components:  1. Remove rear wheel  remove the rh and lh rear wheels. 2. Remove rear brake drum sub–assy 3. Separate skid control sensor wire Disconnect the skid control sensor connector.  remove the 2 bolts and separate the wire harness clamp ...

    Inspection procedure
    1 Inspect terminal voltage(od – body ground) Disconnect the cruise control ecu connector.  turn the ignition switch to the on position.  measure the voltage between terminal od of cruise control ecu and body ground. Standard: 2 Inspect terminal voltage(od1 – bod ...