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Home/DTC Codes/Mazda/CX-3/2016-2021 2.0L I4/C0046
C0046

Left Rear Wheel Speed Signal Erratic

2016-2021 Mazda CX-3 2.0L I4

Moderate SeverityChassisGeneric (SAE)

Description

Erratic signal from left rear sensor.

Symptoms

  • ABS light on
  • Unexpected ABS activation

Common Causes

  • Tone ring crack
  • Debris
  • Bearing wear

Diagnostic Steps

  1. Scope signal
  2. Inspect tone ring
  3. Check bearing

Repair Notes

Replace sensor or tone ring.

Related Codes

C0045Left Rear Wheel Speed Sensor Circuit

Other Chassis Codes

C0046 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 C0046 mean on a 2016-2021 Mazda CX-3?

C0046 stands for "Left Rear Wheel Speed Signal Erratic". Erratic signal from left rear sensor.

What are the symptoms of C0046 on a Mazda CX-3?

Common symptoms of C0046 include: ABS light on, Unexpected ABS activation.

What causes C0046 on a 2016-2021 Mazda CX-3?

Common causes of C0046 include: Tone ring crack, Debris, Bearing wear.

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