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Home/DTC Codes/Mazda/CX-3/2016-2021 2.0L I4/P0122
P0122

Throttle/Pedal Position Sensor/Switch A Circuit Low Input

2016-2021 Mazda CX-3 2.0L I4

High SeverityPowertrainGeneric (SAE)

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

  1. Test TPS voltage
  2. Check for shorts to ground
  3. Test 5V reference
  4. Inspect wiring

Repair Notes

Repair short or replace TPS.

Related Codes

P0120Throttle/Pedal Position Sensor/Switch A CircuitP0123Throttle/Pedal Position Sensor/Switch A Circuit High Input

Other Powertrain Codes

P0122 on Other Vehicles

Mazda 626

1993-1997 2.0L I4

Mazda 626

1993-1997 2.5L V6

Mazda 626

1998-2002 2.0L I4

Mazda 626

1998-2002 2.5L V6

Mazda Axela

2013-2019 1.5L I4 P5-VPS

Mazda Axela

2013-2019 2.2L I4 Diesel SH-VPTS

Mazda B2300

1994-1997 2.3L I4

Mazda B2300

2002-2009 2.3L I4

Common Questions

What does code P0122 mean on a 2016-2021 Mazda CX-3?

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 Mazda CX-3?

Common symptoms of P0122 include: Check Engine Light, Limp mode, Engine stuck at idle, No throttle response.

What causes P0122 on a 2016-2021 Mazda CX-3?

Common causes of P0122 include: Short to ground in TPS circuit, Faulty TPS, Damaged wiring, Failed reference voltage.

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