Sub-Throttle Position Sensor Range/Performance
2020-2020 Toyota Sequoia 5.7L V8
The 2020 Toyota Sequoia is equipped with a 5.7L V8 engine. Below you'll find detailed p1401 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
The sub-throttle position sensor signal is outside expected range.
Symptoms
- CEL
- Erratic throttle
- Reduced power
- Idle instability
Common Causes
- Out-of-range sensor
- Contaminated throttle
- Wiring issues
- Mechanical binding
Diagnostic Steps
- Test sensor range
- Clean throttle body
- Inspect wiring
- Check for binding
Repair Notes
Replace sensor or clean throttle body.
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1401 on Other Vehicles
Common Questions
What does code P1401 mean on a 2020-2020 Toyota Sequoia?
P1401 stands for "Sub-Throttle Position Sensor Range/Performance". The sub-throttle position sensor signal is outside expected range.
What are the symptoms of P1401 on a Toyota Sequoia?
Common symptoms of P1401 include: CEL, Erratic throttle, Reduced power, Idle instability.
What causes P1401 on a 2020-2020 Toyota Sequoia?
Common causes of P1401 include: Out-of-range sensor, Contaminated throttle, Wiring issues, Mechanical binding.
Last updated: March 2026
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