B0958:21 Code - Parking Assist Rear Sensor Left Corner Circuit Incorrect Period
Quick Answer
The parking assist sensors are 3-wire ultrasonic sensors that are used to determine the distance between the vehicle and an object. Common causes include Faulty Parking Assist Rear Sensor Left Corner, Parking Assist Rear Sensor Left Corner harness is open or shorted, Parking Assist Rear Sensor Left Corner circuit poor electrical connection. 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
- B0958:21 indicates Parking Assist Rear Sensor Left Corner Circuit Incorrect Period.
- Common causes
- Common causes include Faulty Parking Assist Rear Sensor Left Corner, Parking Assist Rear Sensor Left Corner harness is open or shorted, Parking Assist Rear Sensor Left Corner circuit poor electrical connection.
- 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.
Code B0958:21 Description
What are the Possible Causes of the DTC B0958:21?
- Faulty Parking Assist Rear Sensor Left Corner
- Parking Assist Rear Sensor Left Corner harness is open or shorted
- Parking Assist Rear Sensor Left Corner circuit poor electrical connection
- Faulty Parking Assist Control Module
How to Fix the DTC B0958:21?
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
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
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B0958:21 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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Frequently Asked Questions about B0958:21 Code
1. What does the OBDII code B0958:21 mean?
This code indicates an issue with the Parking Assist Rear Sensor Left Corner Circuit, specifically an incorrect signal period or timing.
2. What are the common symptoms of code B0958:21?
Symptoms may include a malfunctioning parking assist system, intermittent or no sensor response, or warning messages related to parking assist on the dashboard.
3. What causes the B0958:21 code to be triggered?
Possible causes include a damaged or faulty left corner rear parking sensor, wiring issues such as shorts or open circuits, or a malfunctioning control module.
4. How can I diagnose the B0958:21 code?
Start by visually inspecting the sensor and wiring for damage. Use a multimeter to test for proper voltage and continuity, and check for loose or corroded connections.
5. Can I still drive my vehicle with the B0958:21 code?
Yes, the vehicle can still be driven, but the parking assist system may not function correctly, increasing the risk of parking or reversing accidents.
6. How do I fix the B0958:21 code?
Repair or replace the faulty parking sensor, fix damaged wiring or connections, and clear the code using an OBDII scanner.
7. How much does it cost to repair the B0958:21 code?
Repair costs vary depending on the issue but typically range from $100 to $300 for sensor replacement or wiring repairs.
8. Can a dirty sensor cause the B0958:21 code?
Yes, dirt or debris on the sensor can interfere with its operation and cause signal timing issues. Cleaning the sensor may resolve the problem.
9. Do I need professional help to fix the B0958:21 code?
If the issue involves complex wiring or module diagnostics, professional assistance may be required. Simple fixes like cleaning or replacing the sensor can often be done at home.
10. Will clearing the B0958:21 code with a scanner fix the problem?
Clearing the code may temporarily remove the warning, but the underlying issue must be resolved to prevent the code from returning.
Discuss the causes and fixes for B0958:21 OBDII Code
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