Toyota Corolla (E120): Circuit description

This signal is used to detect that the brakes have been applied. The stp signal voltage is the same as the one supplied to the stop lights.

The stp signal is used mainly to control the fuel cut–off engine speed (the fuel cut–off engine speed is reduced slightly when the vehicle is braking.).

Wiring diagram

Inspection procedure

    Share this page:

    Other materials:

    Terminals of ecu
    1. Inspect tvip ecu Inspect the ecu–b, dome and ecu–ig fuses. disconnect the tvip ecu connector, and the continuity and voltage of check each terminal of the disconnected connector. Standard: If the result is not as specified, the vehicle’s side may malfunction. Reco ...

    Shifting the shift lever
    Vehicles without a smart key system: While the engine switch is in the “ON” position, depress the brake pedal and move the shift lever. Vehicles with a smart key system: While the engine switch is in IGNITION ON mode, depress the brake pedal and move the shift lever. When shifting the ...

    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 ...