Toyota Corolla (E120): Circuit description

If the ignition switch is turned to the on position, battery positive voltage is applied to the switches, such as terminal ig of the ecu.

Wiring diagram

Inspection procedure

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    Driving assist systems
    To help enhance driving safety and performance, the following systems operate automatically in response to various driving situations. Be aware, however, that these systems are supplementary and should not be relied upon too heavily when operating the vehicle. ◆ ABS (Anti-lock Brake Sys ...

    Inspection procedure
    1 Inspect transmission wire(slt) Disconnect the transmission wire connector from the transaxle. measure the resistance according to the value(s) in the table below. Standard: Measure the resistance according to the value(s) in the table below. Standard (check for short): ...

    Confirmation driving pattern
    Connect the hand–held tester or the obd ii scan tool to the dlc3.  record dtcs and the freeze frame data.  set the check mode using the hand–held tester .  read the value on the misfire counter for each cylinder when idling. If the value is displayed on the misfire c ...