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:

    About this vehicle
    1. Structural outline 2. Notice about vehicle condition when jacking up vehicle (a) notice for using jack and safety stand (B) notice for using swing arm type lift (C) notice for using plate type lift 3. Damage diagnosis 4. Components (a) front bumper (B) side mu ...

    Foamed material application areas
    If an increase in temperature or other condition damages the foamed material when repairing or replacing the panel, fill in the insufficient areas with urethane foam. The following illustration shows the areas for one side, but the foamed material must be applied equally to both the left and r ...

    Stabilizer bar rear
    Replacement Hint: components: 1. Remove stabilizer bar rear Remove the 2 bolts, nuts and stabilizer bar. 2. Install stabilizer bar rear Install the 2 bolts, nuts and stabilizer bar. Torque: 195 nvm (1,990 Kgf·cm, 144 ft·lbf) Hint: install the stabilizer bar so that the ...