B2958 Chevrolet Code - Security System Sensor Data Circuit High
Quick Answer
The Passlock™ system is provided in order to prevent vehicle theft if the ignition lock cylinder is forced to rotate or the ignition switch is operated while separated from the ignition lock cylinder case. Common causes include Faulty Security System Sensor, Security System Sensor harness is open or shorted, Security System 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
- B2958 Chevrolet indicates Security System Sensor Data Circuit High.
- Common causes
- Common causes include Faulty Security System Sensor, Security System Sensor harness is open or shorted, Security System 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 B2958 Chevrolet Description
When the correct key is used to start the vehicle, a magnet on the lock cylinder passes close to the Passlock™ sensor within the ignition lock cylinder case. The magnet activates the security hall effect sensor in the Passlock™ sensor which completes a circuit from the security sensor signal circuit through a resistor to the security sensor low reference circuit. The resistance value will vary from vehicle to vehicle. The BCM will measure the voltage on the security sensor signal circuit and compare this voltage to a previously learned voltage. If the voltage measured is within the valid range, the BCM will send a class 2 message to the Powertrain Control Module (PCM) to enable vehicle starting. If the voltage measured is not within the valid range, a class 2 message will be sent to the PCM to disable starting of the vehicle.
What are the Possible Causes of the DTC B2958 Chevrolet?
- Faulty Security System Sensor
- Security System Sensor harness is open or shorted
- Security System Sensor circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B2958 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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2958 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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Frequently Asked Questions about B2958 Chevrolet Code
1. What are the common symptoms of OBDII code B2958 in a Chevrolet related to the Security System Sensor Data Circuit High?
- Common symptoms include the security system not functioning properly, intermittent starting issues, and the security light staying illuminated on the dashboard.
2. What are some possible causes of the OBDII code B2958 in a Chevrolet indicating a Security System Sensor Data Circuit High?
- Potential causes may include a faulty security sensor, damaged wiring in the security system circuit, or a malfunctioning control module.
3. How can I diagnose the OBDII code B2958 in a Chevrolet related to the Security System Sensor Data Circuit High?
- Diagnosis typically involves inspecting the security system components, checking for loose connections or damaged wiring, and using a scan tool to retrieve specific trouble codes.
4. Is it safe to continue driving my Chevrolet with the OBDII code B2958 indicating a Security System Sensor Data Circuit High?
- It is not recommended to drive the vehicle with this code present, as it may lead to potential security system malfunctions or starting issues that could leave you stranded.
5. What are some repair tips for fixing the OBDII code B2958 in a Chevrolet associated with the Security System Sensor Data Circuit High?
- Repair tips may include checking and repairing any damaged wiring, replacing the faulty security sensor, or reprogramming the control module if necessary.
6. Can a DIY enthusiast fix the OBDII code B2958 in a Chevrolet related to the Security System Sensor Data Circuit High?
- While some basic troubleshooting steps can be performed by a DIY enthusiast, fixing this issue may require specialized tools and knowledge, so it is recommended to seek professional help.
7. Will resetting the vehicle's computer clear the OBDII code B2958 for the Security System Sensor Data Circuit High in a Chevrolet?
- Resetting the computer may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear once the problem is detected again.
8. How much does it typically cost to repair the OBDII code B2958 related to the Security System Sensor Data Circuit High in a Chevrolet?
- Repair costs can vary depending on the specific cause of the issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.
9. Are there any recalls or technical service bulletins related to the OBDII code B2958 in Chevrolet vehicles with Security System Sensor Data Circuit High issues?
- It is recommended to check with a Chevrolet dealership or online resources for any recalls or technical service bulletins related to this specific OBDII code to see if there are any known fixes or updates available.
10. How can I prevent the OBDII code B2958 from occurring again in my Chevrolet after it has been repaired for the Security System Sensor Data Circuit High issue?
- To prevent the code from reoccurring, it is essential to address the root cause of the problem, perform regular maintenance on the security system components, and address any related issues promptly to avoid future issues.
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