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Home/DTC Codes/Mazda/CX-3/2016-2021 2.0L I4/P0109
P0109

MAP/BARO Pressure Circuit Intermittent

2016-2021 Mazda CX-3 2.0L I4 🇨🇦

Moderate SeverityPowertrain

Description

The MAP sensor signal is showing intermittent readings.

Symptoms

  • Check Engine Light (intermittent)
  • Erratic idle
  • Stumble on acceleration

Common Causes

  • Loose connector
  • Damaged wiring
  • Intermittent vacuum leak

Diagnostic Steps

  1. Wiggle test on connector
  2. Monitor MAP signal
  3. Check vacuum hose

Repair Notes

Repair connector or wiring.

Related Codes

P0105Manifold Absolute Pressure/BARO Circuit

Other Powertrain Codes

P0109 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 P0109 mean on a 2016-2021 Mazda CX-3?

P0109 stands for "MAP/BARO Pressure Circuit Intermittent". The MAP sensor signal is showing intermittent readings.

What are the symptoms of P0109 on a Mazda CX-3?

Common symptoms of P0109 include: Check Engine Light (intermittent), Erratic idle, Stumble on acceleration.

What causes P0109 on a 2016-2021 Mazda CX-3?

Common causes of P0109 include: Loose connector, Damaged wiring, Intermittent vacuum leak.

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