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Home/DTC Codes/Mazda/CX-3/2016-2021 2.0L I4/B0019
B0019

Passenger Side Curtain Airbag Short to Ground

2016-2021 Mazda CX-3 2.0L I4

Critical SeverityBodyGeneric (SAE)

Description

Short to ground detected in the passenger side curtain airbag deployment circuit.

Symptoms

  • Airbag warning light on
  • SRS fault stored
  • Potential unintended deployment risk

Common Causes

  • Water intrusion in roof rail
  • Pinched wire
  • Insulation damage
  • Connector corrosion

Diagnostic Steps

  1. Disconnect battery
  2. Inspect roof rail area for moisture
  3. Check connector condition
  4. Measure isolation resistance

Repair Notes

Repair shorted wiring and resolve any water entry points.

Related Codes

B0018Passenger Side Curtain Airbag Deployment OpenB0028Driver Side Curtain Deployment Circuit

Other Body Codes

B0019 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 B0019 mean on a 2016-2021 Mazda CX-3?

B0019 stands for "Passenger Side Curtain Airbag Short to Ground". Short to ground detected in the passenger side curtain airbag deployment circuit.

What are the symptoms of B0019 on a Mazda CX-3?

Common symptoms of B0019 include: Airbag warning light on, SRS fault stored, Potential unintended deployment risk.

What causes B0019 on a 2016-2021 Mazda CX-3?

Common causes of B0019 include: Water intrusion in roof rail, Pinched wire, Insulation damage, Connector corrosion.

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