Possible causes – Faulty Electric Throttle Control Actuator – Electric Throttle Control Actuator harness is open or shorted – Electric Throttle Control Actuator circuit poor electrical connection When is the code detected? Electric throttle control actuator does not function properly
Possible causes – Faulty Accelerator Pedal Position Sensor– Accelerator Pedal Position Sensor harness is open or shorted– Accelerator Pedal Position Sensor circuit poor electrical connection Tech notes For Hybrid Lexus Vehicles P1121 = Coolant Flow Control Valve Position Sensor Circuit
Possible causes – Faulty Accelerator Pedal Position Sensor– Accelerator Pedal Position Sensor harness is open or shorted– Accelerator Pedal Position Sensor circuit poor electrical connection Tech notes For Hybrid Toyota Vehicles P1121 = Coolant Flow Control Valve Position Sensor Circuit
Possible causes – Faulty Coolant Flow Control Valve Position Sensor– Coolant Flow Control Valve Position Sensor harness is open or shorted– Coolant Flow Control Valve Position Sensor circuit poor electrical connection Tech notes For Non-Hybrid Toyota Vehicles P1121 = Accelerator
Possible causes – Faulty Coolant Flow Control Valve Position Sensor– Coolant Flow Control Valve Position Sensor harness is open or shorted– Coolant Flow Control Valve Position Sensor circuit poor electrical connection Tech notes For Non-Hybrid Lexus Vehicles P1121 = Accelerator
Possible causes – Faulty Coolant Flow Control Valve Position Sensor– Coolant Flow Control Valve Position Sensor harness is open or shorted– Coolant Flow Control Valve Position Sensor circuit poor electrical connection Tech notes There is a Toyota factory service bulletin
Possible causes – Faulty Electric Throttle Control Actuator– Electric Throttle Control Actuator harness is open or shorted– Electric Throttle Control Actuator circuit poor electrical connection When is the code detected? Electric throttle control actuator does not function properly due to
Possible causes – Faulty Electric Throttle Control Actuator– Electric Throttle Control Actuator harness is open or shorted– Electric Throttle Control Actuator circuit poor electrical connection When is the code detected? Electric throttle control actuator does not function properly due to
Possible causes – Faulty HO2 Sensor Bank 2 Sensor 2– HO2 Sensor Bank 2 Sensor 2 harness is open or shorted– HO2 Sensor Bank 2 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon
Possible causes – Faulty HO2 Sensor Bank 2 Sensor 2– HO2 Sensor Bank 2 Sensor 2 harness is open or shorted– HO2 Sensor Bank 2 Sensor 2 circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon
Possible causes – Faulty Neutral Position Switch– Neutral Position Switch harness is open or shorted– Neutral Position Switch circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1121 SUBARU Description Neutral Position Switch Circuit
Possible causes – Faulty Pedal Position Sensor– Pedal Position Sensor harness is open or shorted– Pedal Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection When is the code detected? If the difference between actual and calculated value exceeds threshold value, the ECM
Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1121 FORD Description Sensor signal output not
Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light)
Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1121 SUZUKI Description Sensor signal output not
Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P1121 MAZDA Description Sensor signal output not
Possible causes – Faulty Throttle Position Sensor– Throttle Position Sensor harness is open or shorted– Throttle Position Sensor circuit poor electrical connection– Throttle Position Sensor not properly adjusted When is the code detected? When the Powertrain Control Module (PCM) senses