How do I fix error P0121?
What repairs can fix the P0121 code?
- Repairing or replacing the TPS connector.
- Repairing the wiring as necessary.
- Replace the TPS with a new sensor.
How do I fix error P0128?
What repairs can fix the P0128 code?
- Replacing the thermostat (most common repair)
- Replacing the coolant temperature sensor, or the wiring and connector associated with the sensor being damaged.
What would cause a P0121 code?
What Does Code P0121 Mean? Diagnostic trouble code P0121 indicates that your vehicle’s ECM/PCM has observed a circuit “A” value that is above or below its specified range. Simply put, a vehicle’s management software is programmed to anticipate certain voltages within an engine’s throttle position circuit.
How do you reset a TPS?
With the vehicle off, turn the key to the “on” position, but don’t start the car. Hold the TPMS reset button until the tire pressure light blinks three times, then release it. Start the car and wait 20 minutes for the sensor to refresh. The TPMS reset button is usually located beneath the steering wheel.
What would cause a P0128 code?
The most common cause for P0128 is the engine coolant thermostat is stuck open. A simple way to diagnose this is to feel the radiator hose and monitor how hot the temperature of the coolant is when it starts flowing through the radiator hose.
How do I reprogram my throttle position sensor?
How to Reset Throttle Position Sensor
- Put the key in the ignition.
- Turn the key to the On position, without cranking the engine. Wait a few seconds, then turn it off.
- Repeat the second step.
- Crank the engine.
- Pull the parking brake.
- Set the gear lever in Drive.
- Wait 5-10 minutes.
How do you reset the throttle position sensor on a Dodge Ram?
To reset the Dodge Ram throttle position sensor(TPS), You need to turn on the ignition without Your foot on the brake, so the engine doesn’t start. Then press the accelerator on the floor for 15 seconds. Release the accelerator. Then turn the car off and start the engine and drive.