Toyota Corolla (E120): Shift solenoid ”a” control circuit low/high

Dtc p0973 shift solenoid ”a” control circuit low (shift solenoid valve s1)

Dtc p0974 shift solenoid ”a” control circuit high (shift solenoid valve s1)

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Problem symptoms table
Hint: use the table below to help determine the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary, replace these parts. 1. Headlamp and tail lamp 2. Front fog lamp system 3. Turn signal and hazard warni ...

Monitor description
Dtc p0451, p0452 or p0453 is recorded by the ecm when the vapor pressure sensor malfunctions. P0451 The ecm senses pressure in the fuel tank using the vapor pressure sensor. The ecm supplies the sensor with a regulated 5 v reference–voltage and the sensor returns a signal voltage betwee ...

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 ...