P1226 INFINITI Possible Causes
- Faulty electronic throttle control actuator (TP sensor 2)
- Electronic throttle control actuator (TP sensor 2) harness is open or shorted
- Poor electrical connection in electronic throttle control actuator (TP sensor 2) circuit
How to Fix P1226 INFINITI Code?
Start by checking the “possible causes” listed above. Visually inspect the corresponding cable harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.
When is the Code Detected?
Closed throttle position learning is not completed successfully, repeatedly.
Possible Symptoms
- Engine light on (or service engine soon warning light)
P1226 INFINITI Meaning
The electronic throttle control actuator consists of a throttle control motor, throttle position sensor, etc. The throttle position (TP) sensor responds to throttle valve movement.
The throttle position sensor has two sensors. These sensors are a type of potentiometer that convert the throttle valve position into output voltage and transmit the voltage signal to the engine control module (ECM). Additionally, these sensors detect the opening and closing speed of the throttle valve and transmit voltage signals to the ECM. The ECM determines the current throttle valve opening angle from these signals and the ECM controls the throttle control motor to properly adjust the throttle valve opening angle in response to driving conditions.