B051C GMC Code - Left Side Assist Step Position Sensor Circuit
Quick Answer
The B051C diagnostic trouble code (DTC) for GMC vehicles refers to an issue with the Left Side Assist Step Position Sensor Circuit. Common causes include Faulty left side assist step position sensor, Wiring issues or damaged wiring harness, Corrosion or poor connections in the sensor circuit. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- B051C GMC indicates Left Side Assist Step Position Sensor Circuit.
- Common causes
- Common causes include Faulty left side assist step position sensor, Wiring issues or damaged wiring harness, Corrosion or poor connections in the sensor circuit.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
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Code B051C GMC Description
The B051C diagnostic trouble code (DTC) for GMC vehicles refers to an issue with the Left Side Assist Step Position Sensor Circuit. This code indicates that there is a malfunction in the sensor circuit responsible for monitoring the position of the left side assist step on the vehicle. The assist step is a retractable step that extends when the door is opened to help passengers easily access the vehicle.
Common Causes of B051C GMC
- Faulty left side assist step position sensor
- Wiring issues or damaged wiring harness
- Corrosion or poor connections in the sensor circuit
- Electronic control module (ECM) malfunction
- Physical damage to the assist step mechanism
Symptoms of B051C GMC
- Assist step not deploying or retracting properly
- Warning lights on the dashboard related to the assist step system
- Unusual noises coming from the assist step mechanism
- Inconsistent operation of the assist step
How to Fix B051C GMC
- Diagnose the issue by using a scan tool to retrieve the DTC and inspecting the left side assist step position sensor and related components.
- Check the wiring harness for any damage, corrosion, or loose connections. Repair or replace as needed.
- Test the left side assist step position sensor for proper functionality. Replace the sensor if it is faulty.
- Clear the DTC from the vehicle's memory using the scan tool.
- Test the assist step system to ensure proper deployment and retraction after the repair.
Cost to Fix B051C GMC
The cost of repairing the Left Side Assist Step Position Sensor Circuit can vary depending on the specific issue causing the B051C code and the labor rates at the auto repair shop. On average, the repair cost for this type of issue can range from $150 to $400, including parts and labor. It is important to note that diagnostic time and labor rates can vary based on location, vehicle make and model, and the expertise of the technician. It is recommended to obtain quotes from different repair shops to get a more accurate estimate for the repair.
Tech Notes for B051C GMC
B051C:02 Left Side Assist Step Position Sensor Circuit Short to Ground
B051C:22 Left Side Assist Step Position Sensor Circuit Low Time < Minimum
B051C:29 Left Side Assist Step Position Sensor Circuit Too Few Pulses
B051C:2A Left Side Assist Step Position Sensor Circuit Too Many Pulses
B051C:62 Left Side Assist Step Position Sensor Circuit Actuator Stuck Open
B051C:63 Left Side Assist Step Position Sensor Circuit Actuator Stuck Closed
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Information for Specific GMC Models
- B051C 2014 GMC Sierra — Left Side Assist Step Position Sensor Circuit
- B051C 2015 GMC Sierra — Left Side Assist Step Position Sensor Circuit
- B051C 2016 GMC Sierra — Left Side Assist Step Position Sensor Circuit
- B051C 2017 GMC Sierra — Left Side Assist Step Position Sensor Circuit
- B051C 2018 GMC Sierra — Left Side Assist Step Position Sensor Circuit
Frequently Asked Questions about B051C GMC Code
1. What are common symptoms of the OBDII code B051C GMC?
- Common symptoms include malfunctioning left side assist step, warning lights on the dashboard, and issues with the assist step deployment.
2. What causes the OBDII code B051C GMC to trigger?
- The code B051C is triggered when there is a malfunction in the left side assist step position sensor circuit, often due to wiring issues or sensor failure.
3. How can I diagnose the issue related to the B051C code?
- Diagnosing the issue requires using a scan tool to read the code, checking the wiring and connections related to the left side assist step sensor, and performing a sensor functionality test.
4. Can I still drive my vehicle with the B051C code present?
- It is generally safe to drive the vehicle with the B051C code, but it is recommended to address the issue promptly to ensure the proper functioning of the left side assist step.
5. How can I repair the left side assist step position sensor circuit related to the B051C code?
- Repairing the issue may involve fixing wiring connections, replacing the left side assist step position sensor, or reprogramming the sensor to resolve the circuit malfunction.
6. Are there any DIY tips for troubleshooting the B051C code?
- DIY tips include visually inspecting the wiring for any visible damage, checking the sensor connections, and ensuring there are no obstructions affecting the left side assist step.
7. How much does it typically cost to repair the B051C code issue?
- The cost of repair can vary depending on the exact cause of the issue, but it may involve a few hundred dollars for parts and labor at a dealership or repair shop.
8. Is the B051C code a common problem in GMC vehicles?
- The B051C code related to the left side assist step position sensor circuit is not extremely common but can occur in certain GMC models equipped with this feature.
9. Can weather conditions affect the triggering of the B051C code?
- Extreme weather conditions, such as heavy rain or snow, can potentially affect the functionality of the left side assist step sensor circuit and lead to the triggering of the B051C code.
10. How often should the left side assist step position sensor circuit be inspected to prevent the B051C code issue?
- It is recommended to include a regular inspection of the left side assist step position sensor circuit during routine vehicle maintenance to catch any potential issues early and prevent the B051C code from occurring.
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