P1194 Toyota Limp Home – TPS2 Position Malfunction
Possible causes
– Faulty Electronic Throttle System (ETS) Motor
– Faulty Electronic Throttle System (ETS)
– Electronic Throttle System(ETS)unit
– Electronic Throttle System(ETS) harness is open or shorted
– Electronic Throttle System(ETS) circuit poor electrical connection
– Faulty Electronic Throttle System (ETS)
– Electronic Throttle System(ETS)unit
– Electronic Throttle System(ETS) harness is open or shorted
– Electronic Throttle System(ETS) circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Engine Limp Mode Fail-Safe Mode)
– Engine Limp Mode Fail-Safe Mode)
P1194 Toyota Description
The Electronic Throttle System (ETS) consists of ETS unit, ETS-motor, Accelerator Position Sensor (APS),Throttle Position Sensor (TPS) and Limp home valve.
Among above-mentioned parts, Limp home valve is attached under the throttle body and helps air to flow from the outside through this valve to the engine combustion chamber to prevent the vehicle from engine stall when Powertrain Control Module (PCM) detects ETS system malfunction.
Toyota Vehicle:Toyota Prius,Toyota Celica,Toyota Supra,Toyota Carina,Toyota Camry,Toyota MR2,Toyota Aygo,Toyota 4Runner,Toyota Avalon,Toyota Camry,Toyota Corolla,Toyota FJ Cruiser,Toyota Highlander,Toyota Land Cruiser,Toyota Matrix,Toyota Prius,Toyota RAV4,Toyota Sequoia,Toyota Sienna,Toyota Solara,Toyota Tacoma,Toyota Tundra,Toyota Yaris,