B0958:18 Code - Parking Assist Rear Sensor Left Corner Circuit Low Signal Amplitude
Quick Answer
The B0958:18 diagnostic trouble code (DTC) indicates a problem with the Parking Assist Rear Sensor Left Corner Circuit, specifically a low signal amplitude. Common causes include Faulty rear left corner sensor, Damaged wiring or connectors leading to the sensor, Corrosion or debris affecting the sensor's performance. 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
- B0958:18 indicates Parking Assist Rear Sensor Left Corner Circuit Low Signal Amplitude.
- Common causes
- Common causes include Faulty rear left corner sensor, Damaged wiring or connectors leading to the sensor, Corrosion or debris affecting the sensor's performance.
- 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 B0958:18 Description
The B0958:18 diagnostic trouble code (DTC) indicates a problem with the Parking Assist Rear Sensor Left Corner Circuit, specifically a low signal amplitude. This code is typically found in vehicles equipped with parking assist systems that use sensors to detect obstacles and assist the driver in parking. The sensor in question is located on the rear left corner of the vehicle and is responsible for detecting objects in that specific area.
Common Causes of B0958:18
- Faulty rear left corner sensor.
- Damaged wiring or connectors leading to the sensor.
- Corrosion or debris affecting the sensor's performance.
- Issues with the control module responsible for processing sensor signals.
Symptoms of B0958:18
- Parking assist system not providing accurate distance warnings.
- Warning lights or messages related to the parking assist system on the dashboard.
- Difficulty in parking or maneuvering the vehicle in tight spaces.
- Inconsistent behavior of the parking assist system.
How to Fix B0958:18
- Begin by visually inspecting the rear left corner sensor and its wiring for any visible damage or corrosion.
- Use a multimeter to test the sensor's signal output and compare it to the expected values.
- If the sensor is faulty, replace it with a new one following the manufacturer's instructions.
- Check and repair any damaged wiring or connectors leading to the sensor.
- Clear the DTC from the vehicle's computer using a diagnostic tool and test the parking assist system to ensure proper functionality.
Cost to Fix B0958:18
The typical repair costs for addressing a B0958:18 code can vary depending on the specific vehicle make and model, as well as the labor rates in your area. In general, replacing a parking assist sensor and addressing any related wiring issues can range from $200 to $500, including parts and labor. It's important to factor in additional diagnostic time and potential costs for specialized tools or equipment that may be required for the repair. Be sure to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your vehicle's specific needs.
Tech Notes for B0958:18
B0958:02 Parking Assist Rear Sensor Left Corner Circuit Short to Ground
B0958:04 Parking Assist Rear Sensor Left Corner Circuit Open
B0958:06 Parking Assist Rear Sensor Left Corner Circuit Low Voltage/Open
B0958:08 Parking Assist Rear Sensor Left Corner Circuit Performance - Signal Invalid
B0958:18 Parking Assist Rear Sensor Left Corner Circuit Low Signal Amplitude
B0958:21 Parking Assist Rear Sensor Left Corner Circuit Incorrect Period
B0958:22 Parking Assist Rear Sensor Left Corner Circuit Too Short Low-Time
B0958:3A Parking Assist Rear Sensor Left Corner Circuit Incorrect Component Installed
B0958:3B Parking Assist Rear Sensor Left Corner Circuit Self-Test Malfunction
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Frequently Asked Questions about B0958:18 Code
1. What does the OBDII code B0958:18 mean?
Code B0958:18 indicates a low signal amplitude issue in the Parking Assist Rear Sensor Left Corner Circuit, meaning the sensor isn’t receiving or transmitting the correct signal.
2. What are the common symptoms of code B0958:18?
Symptoms may include the parking assist system not functioning, audible warnings not sounding, or inaccurate distance readings from the rear-left corner sensor.
3. What causes the B0958:18 code to appear?
Common causes include a faulty rear-left corner parking sensor, damaged wiring or connectors, or corrosion affecting the sensor circuit.
4. Can I drive my car with the B0958:18 code present?
Yes, you can drive the car, but the parking assist system may not function properly, increasing the risk of collisions during parking maneuvers.
5. How do I diagnose the B0958:18 code?
Start by visually inspecting the rear-left corner sensor, its wiring, and connectors for damage or corrosion. Use a diagnostic tool to confirm the sensor’s signal and voltage levels.
6. How can I fix the B0958:18 code?
Repairs may include replacing the faulty parking sensor, repairing or replacing damaged wiring, or cleaning corroded connectors in the circuit.
7. How much does it cost to repair the B0958:18 code?
Repair costs vary depending on the issue, but replacing a parking sensor typically costs $100–$300, while wiring repairs may be less expensive.
8. Can I reset the B0958:18 code without fixing the issue?
You can clear the code with a diagnostic scanner, but it will likely return if the underlying problem isn’t resolved.
9. Can weather conditions trigger the B0958:18 code?
Yes, extreme weather conditions like heavy rain, ice, or dirt buildup can temporarily affect the sensor’s performance and trigger the code.
10. How can I prevent the B0958:18 code from recurring?
Regularly clean the parking sensors, inspect the wiring for damage, and address any corrosion or loose connections promptly to avoid recurrence.
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