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Home/DTC Codes/GMC/Envoy/2002-2009 4.2L I6/C0045
C0045

Left Rear Wheel Speed Sensor Circuit

2002-2009 GMC Envoy 4.2L I6

Moderate SeverityChassisGeneric (SAE)

Description

Malfunction in left rear wheel speed sensor.

Symptoms

  • ABS light on
  • Rear ABS not functioning

Common Causes

  • Faulty sensor
  • Tone ring damage
  • Wiring issue

Diagnostic Steps

  1. Test sensor
  2. Inspect tone ring
  3. Check wiring

Repair Notes

Replace sensor.

Related Codes

C0046Left Rear Wheel Speed Signal ErraticC0050Right Rear Wheel Speed Sensor Circuit

Other Chassis Codes

C0045 on Other Vehicles

GMC Acadia

2017-2024 2.5L I4

GMC Acadia

2017-2024 3.6L V6

GMC Canyon

2004-2012 2.8L I4

GMC Canyon

2004-2012 3.5L I5

GMC Canyon

2007-2012 2.9L I4

GMC Canyon

2007-2012 3.7L I5

GMC Canyon

2015-2022 2.8L I4 Duramax Diesel

GMC Canyon

2015-2022 3.6L V6

Common Questions

What does code C0045 mean on a 2002-2009 GMC Envoy?

C0045 stands for "Left Rear Wheel Speed Sensor Circuit". Malfunction in left rear wheel speed sensor.

What are the symptoms of C0045 on a GMC Envoy?

Common symptoms of C0045 include: ABS light on, Rear ABS not functioning.

What causes C0045 on a 2002-2009 GMC Envoy?

Common causes of C0045 include: Faulty sensor, Tone ring damage, Wiring issue.

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