C0045 Chevrolet Code - Left Rear Wheel Speed Sensor Circuit
Quick Answer
The wheel speeds are detected by active Wheel Speed Sensors (WSS) and encoder rings. Common causes include 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. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- C0045 Chevrolet indicates Left Rear Wheel Speed Sensor Circuit.
- Common causes
- Common causes include 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.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code C0045 Chevrolet Description
What are the Possible Causes of the DTC C0045 Chevrolet?
- 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
- Faulty Electronic Brake Control Module (EBCM)
How to Fix the DTC C0045 Chevrolet?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
2007 - 2013 Chevrolet Silverado,Tahoe, Suburban, GMC Sierra, Yukon, Rear wheel speed sensor replacement. C0045 and C0050 FIX!
- Rear Wheel Speed Sensor - http://amzn.to/2y5OM5b
- Torx Socket Set - http://amzn.to/2xosI24
- 3/8 Ratchet - http://amzn.to/2xoe3sG
- PB Blast - http://amzn.to/2z3bEB3
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the C0045 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Chevrolet Models
- C0045 2014 Chevrolet Silverado — Left Rear Wheel Speed Sensor Circuit
- C0045 2015 Chevrolet Silverado — Left Rear Wheel Speed Sensor Circuit
- C0045 2016 Chevrolet Silverado — Left Rear Wheel Speed Sensor Circuit
- C0045 2017 Chevrolet Silverado — Left Rear Wheel Speed Sensor Circuit
- C0045 2018 Chevrolet Silverado — Left Rear Wheel Speed Sensor Circuit
Frequently Asked Questions about C0045 Chevrolet Code
1. What are the common symptoms of OBDII code C0045 on a Chevrolet related to the left rear wheel speed sensor circuit?
The common symptoms include ABS warning light illuminated on the dashboard, traction control issues, and potential activation of the vehicle's stability control system.
2. What are the possible causes of OBDII code C0045 on a Chevrolet indicating a problem with the left rear wheel speed sensor circuit?
Possible causes can include a faulty left rear wheel speed sensor, damaged sensor wiring or connectors, corrosion, or issues with the ABS module.
3. How can I diagnose the OBDII code C0045 related to the left rear wheel speed sensor circuit on my Chevrolet?
You can use a diagnostic scan tool to retrieve the specific code, visually inspect the sensor and its wiring for any visible damage, and perform electrical tests to check for continuity and proper signal output.
4. Can I still drive my Chevrolet with OBDII code C0045 indicating an issue with the left rear wheel speed sensor circuit?
While it may be possible to drive the vehicle, it is not recommended as the ABS and traction control systems may not function properly, compromising safety. It is best to have the issue diagnosed and repaired promptly.
5. How do I repair OBDII code C0045 on a Chevrolet associated with the left rear wheel speed sensor circuit?
Repair typically involves replacing the faulty left rear wheel speed sensor, repairing any damaged wiring or connectors, and clearing the trouble code using a diagnostic scan tool.
6. Are there any DIY tips for troubleshooting OBDII code C0045 on a Chevrolet linked to the left rear wheel speed sensor circuit?
You can start by checking the sensor and its connections for any visible damage or corrosion. However, for accurate diagnosis and repair, it is advisable to seek professional help or consult a repair manual.
7. Can weather conditions affect the triggering of OBDII code C0045 on a Chevrolet due to the left rear wheel speed sensor circuit issue?
Extreme weather conditions, such as heavy rain or snow, can potentially exacerbate existing issues with the wheel speed sensor or its circuit, leading to the triggering of the OBDII code.
8. How long does it typically take to repair OBDII code C0045 on a Chevrolet related to the left rear wheel speed sensor circuit?
The repair time can vary depending on the exact cause of the issue, but it usually takes a couple of hours to replace the sensor and address any wiring problems associated with the circuit.
9. Is it necessary to reset the ABS system after resolving OBDII code C0045 on a Chevrolet caused by the left rear wheel speed sensor circuit problem?
Yes, it is essential to reset the ABS system using a diagnostic scan tool after repairing the issue to clear the trouble code and ensure proper functioning of the ABS and traction control systems.
10. Can OBDII code C0045 on a Chevrolet be intermittent, with the warning light coming on and off sporadically?
Yes, the issue with the left rear wheel speed sensor circuit can sometimes be intermittent, leading to the ABS warning light turning on and off irregularly. It is still crucial to diagnose and address the problem to prevent safety risks.
Discuss the causes and fixes for C0045 Chevrolet OBDII Code
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2012 silverado replaced lt rear speed sensor based on the code c0045 my abs my traction control a stability lights still on ..any help appreciated disabled vet not alot of money
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2012 silverado abs traction control and stability track light on i replaced the speed sensor code C0045 any help appreciated disabled vet
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Which sensor did you replaced? did you check for debris on the hub? sometimes debris get into the hub causing the sensor to get an improper reading
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Unfortunately, other than the sensor and/or debris on the hub, I have not seen anything else setting the code. Also, there are no factory service bulletin for that code either. I suggest checking the hub for debris and checking the sensor connector for damage pins.
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I have replaced the rear wheel speed sensors.{both are not sending signal to the ecu}. What I need is a diagram showing where the rear wheel speed sensors wiring goes from there. Any help is deeply appreciated.
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Also, if i clear the codes...with truck sitting still with key on...the codes do not clear. Obviously an open wiriung circuit...just c
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Let me check if I can get the diagram for you. What model and year is your vehicle?
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