Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation
2018-2018 Lincoln MKX 3.7L V6
The 2018 Lincoln MKX is equipped with a 3.7L V6 engine. Below you'll find detailed p2135 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
The dual throttle position sensors are reporting conflicting values, indicating a fault.
Symptoms
- Limp mode
- Reduced power
- Check engine light
- Erratic throttle response
Common Causes
- Failed TPS (built into throttle body)
- Connector corrosion
- Intermittent wiring
- 5V reference circuit fault
Diagnostic Steps
- Check TPS sensor A and B voltages
- Verify 5V reference
- Wiggle test wiring
- Check connector pins
Repair Notes
Replace throttle body assembly (TPS is integrated). Check 5V reference shared with other sensors.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
P2135 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 P2135 mean on a 2018-2018 Lincoln MKX?
P2135 stands for "Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation". The dual throttle position sensors are reporting conflicting values, indicating a fault.
What are the symptoms of P2135 on a Lincoln MKX?
Common symptoms of P2135 include: Limp mode, Reduced power, Check engine light, Erratic throttle response.
What causes P2135 on a 2018-2018 Lincoln MKX?
Common causes of P2135 include: Failed TPS (built into throttle body), Connector corrosion, Intermittent wiring, 5V reference circuit fault.
Last updated: March 2026