Throttle/Pedal Position Sensor/Switch A Circuit Low Input
2011-2011 Mitsubishi Lancer 2.4L I4
The 2011 Mitsubishi Lancer is equipped with a 2.4L inline-4 engine. Below you'll find detailed p0122 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
The TPS voltage is below the minimum threshold.
Symptoms
- Check Engine Light
- Limp mode
- Engine stuck at idle
- No throttle response
Common Causes
- Short to ground in TPS circuit
- Faulty TPS
- Damaged wiring
- Failed reference voltage
Diagnostic Steps
- Test TPS voltage
- Check for shorts to ground
- Test 5V reference
- Inspect wiring
Repair Notes
Repair short or replace TPS.
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
P0122 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 P0122 mean on a 2011-2011 Mitsubishi Lancer?
P0122 stands for "Throttle/Pedal Position Sensor/Switch A Circuit Low Input". The TPS voltage is below the minimum threshold.
What are the symptoms of P0122 on a Mitsubishi Lancer?
Common symptoms of P0122 include: Check Engine Light, Limp mode, Engine stuck at idle, No throttle response.
What causes P0122 on a 2011-2011 Mitsubishi Lancer?
Common causes of P0122 include: Short to ground in TPS circuit, Faulty TPS, Damaged wiring, Failed reference voltage.
Last updated: March 2026