How do I fix error P0121?

What repairs can fix the P0121 code?

  1. Repairing or replacing the TPS connector.
  2. Repairing the wiring as necessary.
  3. Replace the TPS with a new sensor.

What would cause a P0121 code?

When code P0121 occurs, it means that your Engine Control Module (ECM) recognized that your throttle position “A” circuit’s expected output voltage has either gone above or below the sensor’s expected range.

What causes a throttle position sensor code?

Code P0122 is triggered when your vehicle’s Engine Control Module (ECM) detects that your Throttle Position Sensor (TPS) circuit A is reporting an output voltage that is below its expected voltage. 20 volts, and if the ECM detects that it has dipped below that, then it will trigger Code P0122.

How do you reset a TPS?

The easiest way to reset your throttle position sensor is to unhook the negative cable from your battery for up to five minutes or to remove the fuse for your engine control module.

What happens when a TPS sensor goes bad?

What happens when my throttle position sensor goes bad. When a TPS goes bad, then the car’s throttle body won’t function properly. It could either stay shut or it won’t close properly which is a severe issue. If it stays shut then your engine is not going receive air and it won’t start.

How much does it cost to diagnose p0121 GMC code?

The cost to diagnose the P0121 GMC code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

What is the cause of the code p0121?

What Is The Cause Of Code P0121? 1 Faulty Throttle Position Sensor (TPS) 2 Dirty Throttle Body 3 Faulty Throttle Body 4 An open or short of the TPS circuit 5 Bad connection of the TPS connector 6 Corrosion on terminal ends of electrical connections More

What is the trouble code on an OBD-2?

I have the codes P0011, P0121, P0449, P0455, P1516, P2101, P2143, and C0700. It often says engine power reduced and service traction control. It also has troubles shifting gears when these pop up.