Toyota Corolla (E120): Circuit description

Monitor description

Monitor description

The ecm commands gearshift by turning the shift solenoid valves ”on/off”. When there is an open or short circuit in any shift solenoid valve circuit, the ecm detects the problem and the mil comes on. Illuminating the mil, the ecm performs the fail–safe and turns the other shift solenoid valves in good condition ”on/off” (in case of an open or short circuit, the ecm stops sending current to the circuit.).

Monitor strategy

Typical enabling condition

Typical enabling condition

Typical malfunction thresholds

Typical malfunction thresholds

Component operating range

Component operating range

Wiring diagram

Wiring diagram

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    Adjusting the set speed
    To change the set speed, operate the lever until the desired set speed is obtained. 1 Increases the speed 2 Decreases the speed Fine adjustment: Momentarily move the lever in the desired direction. Large adjustment: Hold the lever in the desired direction. The set speed will be increased or dec ...

    Inspection procedure
    1 Inspect stop lamp switch assy Check that the stop light lights up when brake pedal is depressed and turns off when the brake pedal is released. 2 Inspect skid control ecu terminal voltage(stp terminal) Disconnect skid control ecu connector. measure voltage between termina ...

    Shifting the shift lever to R
    Shift the shift lever to R while lifting up the ring section. ■Maximum allowable speeds Observe the following maximum allowable speeds in each gear when maximum acceleration is necessary. mph (km/h) NOTICE ■To prevent damage to the transmission ●Do not lift up the ring ...