Transmission Range Sensor Rationality Error
2016-2018 Lincoln MKX 3.7L V6
Description
The transmission range sensor (TRS) reading does not agree with other inputs such as gear state solenoids and output shaft speed.
Symptoms
- Check Engine Light
- Incorrect gear displayed on dash
- Transmission may not shift out of park
- Backup lights on in drive
- Wrong gear engagement
- Intermittent no-start in Park
Common Causes
- TRS misadjusted
- TRS internal failure
- Shift linkage loose or worn
- TRS connector corroded
- TRS wiring short
Diagnostic Steps
- Compare TRS signal to actual gear selector position
- Inspect shift linkage adjustment
- Test TRS voltage in each gear position
- Check TRS connector
- Monitor TRS signal for dropouts
Repair Notes
Adjust or replace transmission range sensor. Check and adjust shift linkage. Verify correct gear display in all selector positions.
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
P3066 on Other Vehicles
Lincoln Aviator
2003-2005 4.6L V8
Lincoln Aviator
2003-2005 4.6L V8 DOHC
Lincoln Aviator
2020-2024 3.0L Twin-Turbo V6
Lincoln Aviator
2020-2024 3.0L V6 Twin Turbo
Lincoln Aviator Grand Touring
2020-2024 3.0L Twin Turbo V6 PHEV
Lincoln Aviator Grand Touring
2020-2024 3.0L Twin-Turbo V6 Hybrid
Lincoln Aviator Grand Touring
2020-2024 3.0L V6 Twin Turbo Hybrid
Lincoln Blackwood
2002-2002 5.4L V8
Common Questions
What does code P3066 mean on a 2016-2018 Lincoln MKX?
P3066 stands for "Transmission Range Sensor Rationality Error". The transmission range sensor (TRS) reading does not agree with other inputs such as gear state solenoids and output shaft speed.
What are the symptoms of P3066 on a Lincoln MKX?
Common symptoms of P3066 include: Check Engine Light, Incorrect gear displayed on dash, Transmission may not shift out of park, Backup lights on in drive, Wrong gear engagement, Intermittent no-start in Park.
What causes P3066 on a 2016-2018 Lincoln MKX?
Common causes of P3066 include: TRS misadjusted, TRS internal failure, Shift linkage loose or worn, TRS connector corroded, TRS wiring short.