Causes and Fixes P2138 Code: Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation

How to fix a P2138 Code: Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation. A P2138 Code is set when the ECM/PCM detects that the signals from the two throttle position sensors don’t correlate.
The sensor on the gas pedal is called the Accelerator Pedal Position (APP).
The sensor on the throttle body is called the Throttle Position (TP) Sensor.
Some vehicles have a Throttle Body Relearn procedure if the sensors are replaced.
Symptoms of a Bad Throttle Position Sensor and How See if it Has Failed
https://youtu.be/Pr6LOEuadY0?

Possible Causes of a P2138 Code:
Dirty Throttle Body
Bad Throttle Position (TP) Sensor
Bad Accelerator Pedal Position (APP) Sensors
Wiring Open or Short

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