Engine-Codes - GMC - C0046 GMC

C0046 GMC Code - Left Rear Wheel Speed Sensor Circuit Range Performance

- Code Popularity: 2,605 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC C0046 GMC?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Left Rear Wheel Speed Sensor
  • Left Rear Wheel Speed Sensor harness is open or shorted
  • Left Rear Wheel Speed Sensor circuit poor electrical connection
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How to Fix the DTC C0046 GMC?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the C0046 GMC code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the C0046 GMC Code Mean?

The Wheel Speed Sensor (WSS) receives ignition voltage from the Electronic Brake Control Module (EBCM) and provides a DC square wave signal back to the module. As the wheel spins, the EBCM uses the frequency of the square wave signal to calculate the wheel speed.

C0046 GMC Code - Left Rear Wheel Speed Sensor Circuit Range Performance

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