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Home/DTC Codes/Mazda/CX-3/2016-2021 2.0L I4/P0103
P0103

Mass Air Flow (MAF) Circuit High Input

2016-2021 Mazda CX-3 2.0L I4

Moderate SeverityPowertrainGeneric (SAE)

Description

The MAF sensor signal voltage is higher than the maximum expected value.

Symptoms

  • Check Engine Light
  • Lean fuel condition
  • Poor acceleration
  • Engine surge

Common Causes

  • Faulty MAF sensor
  • Short to voltage in signal wire
  • Water damage to sensor

Diagnostic Steps

  1. Check MAF sensor connector
  2. Test signal voltage
  3. Inspect wiring for shorts to power
  4. Test sensor output

Repair Notes

Replace MAF sensor or repair wiring.

Related Codes

P0100Mass Air Flow (MAF) CircuitP0101Mass Air Flow (MAF) Circuit Range/PerformanceP0102Mass Air Flow (MAF) Circuit Low Input

Other Powertrain Codes

P0103 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 P0103 mean on a 2016-2021 Mazda CX-3?

P0103 stands for "Mass Air Flow (MAF) Circuit High Input". The MAF sensor signal voltage is higher than the maximum expected value.

What are the symptoms of P0103 on a Mazda CX-3?

Common symptoms of P0103 include: Check Engine Light, Lean fuel condition, Poor acceleration, Engine surge.

What causes P0103 on a 2016-2021 Mazda CX-3?

Common causes of P0103 include: Faulty MAF sensor, Short to voltage in signal wire, Water damage to sensor.

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