Toyota Corolla (E120): Torque converter clutch solenoid circuit low/high

Dtc p2769 torque converter clutch solenoid circuit low (shift solenoid valve sl)

Dtc p2770 torque converter clutch solenoid circuit high (shift solenoid valve sl)

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Inspection
1. Headlamp dimmer switch assy Inspect light control switch continuity.  Measure the resistance according to the value(s) in the table below. Standard: Inspect headlight dimmer switch continuity.  Measure the resistance according to the value(s) in the tabl ...

Circuit description
In the diagram below, when the engine is cranked, current flows from terminal st2 of the ignition switch to the starter relay coil and also current flows to terminal sta of the ecm (sta signal). When the sta signal and ne signal are input to the ecm, tr is turned on, current flows to the c ...

Inspection procedure
Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the ...