Toyota Corolla (E120): Circuit description

The ignition switch provides circuit power and the ecm provides the circuit ground that illuminates the mil.

Mil operation is checked visually: it should be illuminated when the ignition is first turned on. If the mil is off all of the time or on all of the time, use the procedure below to troubleshoot it. The mil is used to indicate the ecm’s detection of a vehicle malfunction.

Follow this procedure using the hand–held tester or an obd ii scan tool to determine the cause of the problem and to check the mil.

Wiring diagram

Inspection procedure

    Share this page:

    Other materials:

    Oil filter sub–assy
    Replacement Caution: prolonged and repeated contact with mineral oil will result in the removal of natural fats from the skin, leading to dryness, irritation and dermatitis. In addition, used engine oil contains potentially harmful contaminants which may cause skin cancer. Exercise ...

    Disposal
    1. Dispose shock absorber assy rear lh Fully extend the shock absorber rod.  using a drill, make a hole in the cylinder as shown in the illustration to discharge the gas inside. Caution: when drilling, chips may fly out, work carefully. The gas is colorless, odorless and no ...

    Rear seats
    The seatbacks of the rear seats can be folded down. Folding down the rear seatbacks 1. Move the front seats forward. 2. Stow the rear armrest. (if equipped). 3. Fold the seatback down while pushing the seatback lock release button. Each seatback may be folded separately. WARNING Observe the follo ...