B2960 GMC Code - Security System Sensor Data Incorrect But Valid
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
- B2960 GMC indicates Security System Sensor Data Incorrect But Valid.
- 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 B2960 GMC 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 B2960 GMC?
- 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 B2960 GMC?
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 B2960 GMC 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 B2960 GMC Code
1. What are the common symptoms of OBDII code B2960 (GMC) - Security System Sensor Data Incorrect But Valid?
- Common symptoms include issues with starting the vehicle, intermittent stalling, and the security light staying illuminated on the dashboard.
2. What are the possible causes of OBDII code B2960 (GMC)?
- The code B2960 can be triggered by a faulty ignition lock cylinder, a problem with the ignition key, or issues with the Body Control Module (BCM).
3. How can I diagnose the OBDII code B2960 (GMC)?
- Diagnosis typically involves checking the ignition key resistance, inspecting the ignition lock cylinder, and using a scan tool to read the BCM data.
4. Can I drive my vehicle with OBDII code B2960 (GMC) active?
- It is not recommended to drive the vehicle with this code active, as it may lead to unexpected stalling or starting issues.
5. How can I repair OBDII code B2960 (GMC)?
- Repair options may include replacing the ignition lock cylinder, reprogramming the BCM, or relearning the key to the vehicle's security system.
6. Is it possible to reset OBDII code B2960 (GMC) without repairs?
- Clearing the code without addressing the underlying issue may not solve the problem, as it is likely to reoccur until the root cause is fixed.
7. Can a DIYer fix OBDII code B2960 (GMC) at home?
- Depending on the specific cause, DIY repair of this code may be possible for experienced individuals with the necessary tools and knowledge.
8. How long does it typically take to repair OBDII code B2960 (GMC)?
- The repair time can vary based on the cause of the code and the complexity of the fix, but it may take anywhere from a few hours to a full day.
9. Will OBDII code B2960 (GMC) cause permanent damage if left unresolved?
- Ignoring this code can lead to potential security system malfunctions, starting issues, and inconvenience, but it is unlikely to cause permanent damage to the vehicle.
10. Can weather conditions affect the triggering of OBDII code B2960 (GMC)?
- Extreme weather conditions, such as temperature fluctuations, can sometimes exacerbate issues related to the security system sensor data, potentially leading to the activation of this code.
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