B0959 GMC Code - Parking Assist Rear Sensor Left Middle Circuit
Quick Answer
The B0959 GMC diagnostic trouble code (DTC) specifically refers to an issue with the Parking Assist Rear Sensor Left Middle Circuit in the vehicle. Common causes include Faulty rear left middle parking sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or debris affecting the sensor's functionality. 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
- B0959 GMC indicates Parking Assist Rear Sensor Left Middle Circuit.
- Common causes
- Common causes include Faulty rear left middle parking sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or debris affecting the sensor's functionality.
- 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 B0959 GMC Description
The B0959 GMC diagnostic trouble code (DTC) specifically refers to an issue with the Parking Assist Rear Sensor Left Middle Circuit in the vehicle. This code indicates that there is a malfunction in the circuit that controls the rear left middle parking sensor. Parking assist systems use sensors located around the vehicle to detect obstacles and provide the driver with audible or visual alerts to help with parking maneuvers. When this specific sensor circuit is compromised, it can lead to inaccurate readings or a complete failure of the parking assist system.
Common Causes of B0959 GMC
- Faulty rear left middle parking sensor.
- Damaged wiring or connectors in the sensor circuit.
- Corrosion or debris affecting the sensor's functionality.
- Issues with the control module processing sensor data.
Symptoms of B0959 GMC
- Inaccurate or inconsistent parking assist alerts.
- Complete failure of the parking assist system.
- Dashboard warning lights related to the parking assist system.
- Difficulty parking or increased risk of collisions.
How to Fix B0959 GMC
- Begin by conducting a thorough inspection of the rear left middle parking sensor and its wiring for any visible damage or corrosion.
- Use a multimeter to test the sensor's resistance and ensure it is within the manufacturer's specifications.
- Check the wiring harness for continuity and repair any damaged wires or connectors.
- If the sensor and wiring are in good condition, inspect the control module for any faults and replace if necessary.
- Clear the DTC from the vehicle's computer using a diagnostic scan tool and test the parking assist system to ensure proper functionality.
Cost to Fix B0959 GMC
The typical repair costs for addressing the B0959 GMC code can vary depending on the specific cause of the issue and the parts needed for repair. In general, replacing a faulty parking sensor or repairing damaged wiring can range from $100 to $300, including parts and labor. If the control module needs to be replaced, additional costs may apply, potentially increasing the total repair bill. It's important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Factors such as location, vehicle make and model, and engine type can also influence the final repair costs. For a more accurate estimate, it's recommended to consult with local auto repair shops.
Tech Notes for B0959 GMC
B0959:02 Parking Assist Rear Sensor Left Middle Circuit Short to Ground
B0959:04 Parking Assist Rear Sensor Left Middle Circuit Open
B0959:06 Parking Assist Rear Sensor Left Middle Circuit Low Voltage/Open
B0959:08 Parking Assist Rear Sensor Left Middle Circuit Performance - Signal Invalid
B0959:18 Parking Assist Rear Sensor Left Middle Circuit Low Signal Amplitude
B0959:21 Parking Assist Rear Sensor Left Middle Circuit Incorrect Period
B0959:22 Parking Assist Rear Sensor Left Middle Circuit Too Short Low-Time
B0959:3A Parking Assist Rear Sensor Left Middle Circuit Incorrect Component Installed
B0959:3B Parking Assist Rear Sensor Left Middle Circuit Self-Test Malfunction
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Information for Specific GMC Models
- B0959 2014 GMC Sierra — Parking Assist Rear Sensor Left Middle Circuit
- B0959 2015 GMC Sierra — Parking Assist Rear Sensor Left Middle Circuit
- B0959 2016 GMC Sierra — Parking Assist Rear Sensor Left Middle Circuit
- B0959 2017 GMC Sierra — Parking Assist Rear Sensor Left Middle Circuit
- B0959 2018 GMC Sierra — Parking Assist Rear Sensor Left Middle Circuit
Frequently Asked Questions about B0959 GMC Code
1. What are the common symptoms of OBDII code B0959 GMC (Parking Assist Rear Sensor Left Middle Circuit)?
- Common symptoms include a malfunctioning or non-responsive rear parking sensor on the left middle side of the vehicle, leading to inaccurate or no distance alerts when parking.
2. What are the possible causes of OBDII code B0959 GMC?
- The code B0959 GMC can be triggered by issues such as a faulty rear parking sensor, damaged wiring or connectors related to the sensor, or a problem with the sensor control module.
3. How can I diagnose the cause of OBDII code B0959 GMC?
- Diagnosing the issue involves inspecting the rear parking sensor on the left middle side of the vehicle for physical damage, checking the wiring and connectors for any signs of wear or corrosion, and using a diagnostic scan tool to communicate with the sensor control module.
4. What are some tips for repairing OBDII code B0959 GMC?
- Repair tips may include replacing the faulty rear parking sensor, repairing or replacing damaged wiring and connectors, and resetting or reprogramming the sensor control module as needed.
5. Can I drive my vehicle with OBDII code B0959 GMC?
- While it may be possible to drive the vehicle with this code, it is recommended to address the issue promptly to ensure the proper functioning of the parking assist system for your safety and convenience.
6. How do I reset the OBDII code B0959 GMC after making repairs?
- After making the necessary repairs, you can reset the OBDII code B0959 GMC using a diagnostic scan tool capable of clearing trouble codes. This will help clear the error code and turn off the Check Engine light.
7. Are there any precautions to take when working on the parking assist system related to OBDII code B0959 GMC?
- It is important to disconnect the vehicle's battery before working on the parking assist system to prevent any electrical damage or short circuits. Additionally, following manufacturer guidelines and using proper tools is recommended.
8. What is the typical cost to repair OBDII code B0959 GMC at a repair shop?
- The cost to repair OBDII code B0959 GMC can vary depending on the specific issue, parts required, labor rates, and location. It is advisable to consult with a trusted mechanic or dealership for an accurate estimate.
9. Can weather conditions affect the triggering of OBDII code B0959 GMC?
- Extreme weather conditions like heavy rain, snow, or extreme temperatures can potentially affect the performance of the rear parking sensor, leading to the triggering of OBDII code B0959 GMC. Regular maintenance and inspection can help prevent such issues.
10. Is it possible to bypass or disable the parking assist system to avoid OBDII code B0959 GMC?
- While it may be possible to bypass or disable the parking assist system temporarily, it is not recommended as it compromises the safety features of the vehicle. It is best to address the underlying issue causing the code.
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