Sidekick 4WD Transmission - Torque Converter Clutch Solenoid Change | TSB
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The brake pedal is released (brake pedal switch is ON)
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The A/T oil pressure is higher than the specified pressure (the oil pressure switch is ON).
Even when the relay is ON, if the brake pedal is depressed or the A/T oil pressure is too low, the TCC solenoid valve circuit opens and voltage is not
applied.
TORQUE CONVERTER CLUTCH DIAGNOSIS (LATE TYPE ECM)
ELECTRICAL CHECK