P2139

Throttle/Pedal Position Sensor/Switch D/F Voltage Correlation

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–89 (est.)

Symptoms

Check Engine light comes on
The car goes into emergency mode
Acceleration problems
Unstable engine operation
Reduced engine power

Causes

Malfunction of the accelerator pedal position sensor
Open or short circuit in the sensor circuit
Poor contact in connectors
Wiring Harness Problems
ECU malfunction

How to Fix

Check error codes and sensor data using a scanner
Inspect the wiring and sensor connectors
Check the resistance and voltage of the pedal position sensors
Replace a faulty pedal position sensor
Replace wiring harness if necessary

Related codes

P2122 P2127 P2135