P1401
Sub-Throttle Position Sensor Range/Performance
2008-2015 Scion xB 2.4L I4
Moderate SeverityPowertrain
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 2008-2015 Scion xB?
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 Scion xB?
Common symptoms of P1401 include: CEL, Erratic throttle, Reduced power, Idle instability.
What causes P1401 on a 2008-2015 Scion xB?
Common causes of P1401 include: Out-of-range sensor, Contaminated throttle, Wiring issues, Mechanical binding.