P1225 2008 NISSAN SENTRA - Closed Throttle Position Learning Performance Problem
P1225 2008 Nissan Sentra Possible Causes
- Faulty Electric throttle control actuator (TP sensor 2)
- Electric throttle control actuator (TP sensor 2) harness is open or shorted
- Electric throttle control actuator (TP sensor 2) circuit poor electrical connection
Cost of diagnosing the P1225 2008 Nissan Sentra code
Labor: 1.0The cost of diagnosing the P1225 2008 Nissan Sentra code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected?Closed throttle position learning value is excessively low.
P1225 2008 Nissan Sentra Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1225 2008 Nissan Sentra MeaningElectric Throttle Control Actuator consists of throttle control motor, throttle position sensor, etc. The Throttle Position (TP) sensor responds to the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the Engine Control Module (ECM). In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.