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Home/DTC Codes/Lincoln/MKX/2014-2014 3.7L V6/P2127
P2127

Throttle/Pedal Position Sensor/Switch E Circuit Low

2014-2014 Lincoln MKX 3.7L V6

Critical SeverityPowertrainGeneric (SAE)

The 2014 Lincoln MKX is equipped with a 3.7L V6 engine. Below you'll find detailed p2127 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.

Description

Low voltage from accelerator pedal position sensor E.

Symptoms

  • Limp mode
  • Reduced power
  • Check engine light

Common Causes

  • APP sensor fault
  • Wiring short to ground
  • Corroded connection

Diagnostic Steps

  1. Measure APP sensor E voltage
  2. Check wiring and connector

Repair Notes

Replace pedal assembly or repair wiring.

Related Codes

P2128Throttle/Pedal Position Sensor/Switch E Circuit HighP2138Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation

Other Powertrain Codes

P2127 on Other Vehicles

Lincoln Aviator

2003-2003 4.6L V8 DOHC

Lincoln Aviator

2004-2004 4.6L V8 DOHC

Lincoln Aviator

2005-2005 4.6L V8 DOHC

Lincoln Aviator

2020-2020 3.0L Twin-Turbo V6

Lincoln Aviator

2020-2020 3.0L V6 Twin Turbo

Lincoln Aviator

2020-2020 3.0L V6 Twin Turbo Hybrid

Lincoln Aviator

2021-2021 3.0L Twin-Turbo V6

Lincoln Aviator

2021-2021 3.0L V6 Twin Turbo

Common Questions

What does code P2127 mean on a 2014-2014 Lincoln MKX?

P2127 stands for "Throttle/Pedal Position Sensor/Switch E Circuit Low". Low voltage from accelerator pedal position sensor E.

What are the symptoms of P2127 on a Lincoln MKX?

Common symptoms of P2127 include: Limp mode, Reduced power, Check engine light.

What causes P2127 on a 2014-2014 Lincoln MKX?

Common causes of P2127 include: APP sensor fault, Wiring short to ground, Corroded connection.

Last updated: March 2026

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