Toyota Corolla (E120): Circuit description

Shifting from 1st to o/d is performed in combination with on and off of the shift solenoid valve s1 and s2 controlled by ecm. If an open or short circuit occurs in either of the solenoid valves, the ecm controls the remaining normal solenoid valve to allow the vehicle to be operated smoothly (fail safe function).

Fail safe function: if either of the solenoid valve circuits develops an open or short, the ecm turns the other solenoid valve on and off to shift to the gear positions shown in the table below. If both solenoids malfunction, hydraulic control cannot be performed electronically and must be done manually.

Manual shifting as shown in the above table must be done (in the case of a short circuit, the ecm stops sending current to the short circuited solenoid).

X: malfunctions

X: malfunctions

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

Inspection procedure

    Share this page:

    Other materials:

    How to check and change detailed Bluetooth® settings
    1 Display the “Bluetooth* Setup” screen. 2 Select “System Settings”. 3 The following screen is displayed: 1 Bluetooth® Power on/off You can change Bluetooth® function on/off 2 Bluetooth® Name 3 Change PIN-code 4 Bluetooth® Address 5 Display Phone Status You can set the system ...

    Editing the contact data
    For PBAP compatible Bluetooth® phones, this function is available when “Automatic Contact/History Transfer” is set to off. 1 Select “Edit Contact”. 2 Select the desired contact. 3 Select corresponding to the desired name or number. ► For editing the name Follow the steps in “R ...

    Floor shift cable transmission control select
    Replacement Hint: components: 1. Remove air conditioner unit assy Hint: refer to the instructions for removal of the air conditioner unit assy. 2. Separate air bag sensor assy center  remove the 3 bolts, separate the airbag sensor assy center. 3. Remove exhaust pipe assy 4. Remo ...