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Home/DTC Codes/Chevrolet/Express/2003-2024 4.3L V6/C0046
C0046

Left Rear Wheel Speed Signal Erratic

2003-2024 Chevrolet Express 4.3L V6

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

Chevrolet Astro

1995-2005 4.3L V6 Vortec

Chevrolet Avalanche

2002-2006 5.3L V8 Vortec

Chevrolet Avalanche

2002-2006 8.1L V8 Vortec

Chevrolet Avalanche

2007-2013 5.3L V8 Vortec

Chevrolet Avalanche

2007-2013 6.0L V8 Vortec

Chevrolet Aveo

2012-2018 1.6L I4

Chevrolet Beat

2018-2021 1.2L I4

Chevrolet Beretta

1990-1996 2.2L I4

Common Questions

What does code C0046 mean on a 2003-2024 Chevrolet Express?

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

What are the symptoms of C0046 on a Chevrolet Express?

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

What causes C0046 on a 2003-2024 Chevrolet Express?

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

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