P2140 critical

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

The P2140 code means the vehicle's onboard diagnostic system has detected: Throttle/Pedal Position Sensor/Switch E/F Voltage Correlation. This is a critical severity code.

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Keep driving?: Short distances only
DIY difficulty: hard
Estimated cost: $100 - $700 (parts and labor)

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Common Symptoms

Reduced engine power
Throttle mismatch with pedal position
Hesitation during acceleration
Limp mode warning
Check engine light on

Probable Causes (Ranked by Likelihood)

APP sensor E output not correlating with TPS F on throttle body Very High
Dirty throttle body causing TPS F position error High
Failing throttle body TPS F sensor Moderate
Failing APP sensor E track Moderate
Wiring fault in E or F circuit causing inaccurate readings Low

Step-by-Step Diagnostic Procedure

Monitor both APP sensor E and TPS F on scan tool -- their relationship should be consistent
Clean throttle body to ensure accurate TPS F readings
Test APP sensor E independently by comparing to APP sensor D
Test TPS F independently by comparing to the primary TPS track
Replace whichever component (pedal or throttle body) has the faulty sensor

Frequently Asked Questions

Can I drive with code P2140?

Only short distances at reduced power. The PCM cannot verify proper throttle system operation when E and F signals do not correlate. The vehicle will be in limp mode with limited acceleration.

Do I need to replace both the pedal and throttle body?

Not necessarily. Determine which sensor is faulty by comparing each to its paired track. If APP E does not match APP D, replace the pedal assembly. If TPS F does not match the primary TPS, replace the throttle body. Only replace the component with the faulty sensor.

How many position sensors does the electronic throttle system have?

A typical drive-by-wire system has four position sensors -- two on the accelerator pedal (D and E circuits) and two on the electronic throttle body (primary and F circuits). The PCM cross-references all four to verify safe operation.