P1121 INFINITI - Electric Throttle Control Actuator
P1121 INFINITI Possible Causes
- Faulty Electric Throttle Control Actuator
- Electric Throttle Control Actuator harness is open or shorted
- Electric Throttle Control Actuator circuit poor electrical connection
How do I fix code P1121 INFINITI?Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
Cost of diagnosing the P1121 INFINITI code
Labor: 1.0The cost of diagnosing the P1121 INFINITI code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected?Electric throttle control actuator does not function properly due to the return spring malfunction or throttle valve is stuck open
- Engine Light ON (or Service Engine Soon Warning Light)
- No throttle pedal response
P1121 Infiniti DescriptionElectric Throttle Control Actuator consists of throttle control motor, Throttle Position Sensor (TPS), etc. The throttle control motor is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve.
The throttle position sensor detects the throttle valve position, and the opening and closing speed of the throttle valve and feeds 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.
P1121 INFINITI More InformationNeed more information on how to fix the P1121 INFINITI code?
Get Access to Factory Service Manuals
Information for specific Infiniti models
Need more help?Get the P1121 Infiniti code diagnosed by a professional: Find a repair shop in your area
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