Throttle/Pedal Position Sensor/Switch A Circuit High Input
2012-2012 Mitsubishi Outlander 2.0L I4
The 2012 Mitsubishi Outlander is equipped with a 2.0L inline-4 engine. Below you'll find detailed p0123 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
The TPS voltage is above the maximum threshold.
Symptoms
- Check Engine Light
- Limp mode
- High idle
- Sudden acceleration concern
Common Causes
- Open circuit in TPS ground
- Short to voltage
- Faulty TPS
Diagnostic Steps
- Test TPS voltage
- Check for open ground
- Check for shorts to power
Repair Notes
Repair wiring or replace TPS. Safety concern - do not drive.
Related Codes
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
P0123 on Other Vehicles
Mitsubishi 3000GT
1996-1996 3.0L V6 Twin Turbo
Mitsubishi 3000GT
1997-1997 3.0L V6 Twin Turbo
Mitsubishi 3000GT
1998-1998 3.0L V6 Twin Turbo
Mitsubishi 3000GT
1999-1999 3.0L V6 Twin Turbo
Mitsubishi Colt JP
2002-2002 1.3L I4 4A90
Mitsubishi Colt JP
2002-2002 1.5L I4 4A91
Mitsubishi Colt JP
2003-2003 1.3L I4 4A90
Mitsubishi Colt JP
2003-2003 1.5L I4 4A91
Common Questions
What does code P0123 mean on a 2012-2012 Mitsubishi Outlander?
P0123 stands for "Throttle/Pedal Position Sensor/Switch A Circuit High Input". The TPS voltage is above the maximum threshold.
What are the symptoms of P0123 on a Mitsubishi Outlander?
Common symptoms of P0123 include: Check Engine Light, Limp mode, High idle, Sudden acceleration concern.
What causes P0123 on a 2012-2012 Mitsubishi Outlander?
Common causes of P0123 include: Open circuit in TPS ground, Short to voltage, Faulty TPS.
Last updated: March 2026