B3902 2017 Chevrolet Silverado Code - Incorrect Immobilizer Identifier Received
Quick Answer
The B3902 diagnostic trouble code (DTC) in a 2017 Chevrolet Silverado indicates that the vehicle's immobilizer system has detected an incorrect identifier. Common causes include Faulty key or key fob, Malfunctioning immobilizer system components, Wiring or connection issues between the immobilizer system and ECU. 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
- B3902 2017 Chevrolet Silverado indicates Incorrect Immobilizer Identifier Received.
- Common causes
- Common causes include Faulty key or key fob, Malfunctioning immobilizer system components, Wiring or connection issues between the immobilizer system and ECU.
- 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.
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Code B3902 2017 Chevrolet Silverado Description
The B3902 diagnostic trouble code (DTC) in a 2017 Chevrolet Silverado indicates that the vehicle's immobilizer system has detected an incorrect identifier. The immobilizer system is a security feature that prevents the vehicle from being started without the correct key or key fob. When the system receives an incorrect identifier, it will trigger this code and may prevent the vehicle from starting or cause it to stall while driving.
Common Causes of B3902 2017 Chevrolet Silverado
- Faulty key or key fob
- Malfunctioning immobilizer system components
- Wiring or connection issues between the immobilizer system and ECU
- ECU software or hardware issues
Symptoms of B3902 2017 Chevrolet Silverado
- Engine cranks but does not start
- Vehicle stalls while driving
- Immobilizer warning light on the dashboard
- Inability to start the vehicle with the correct key or key fob
How to Fix B3902 2017 Chevrolet Silverado
- Check and replace the key or key fob if faulty
- Inspect and repair any damaged wiring or connections
- Test and replace components of the immobilizer system, such as the antenna or transceiver
- Update or reprogram the ECU software to ensure proper communication with the immobilizer system
- Clear the DTC and perform a system reset to ensure the issue is resolved
Cost to Fix B3902 2017 Chevrolet Silverado
The typical repair costs for addressing the B3902 code in a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. On average, the cost of parts for this repair can range from $100 to $500, while labor costs can range from $100 to $300. However, it's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the extent of the repairs needed. Additionally, diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.
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Frequently Asked Questions about B3902 2017 Chevrolet Silverado Code
1. What are common symptoms of OBDII code B3902 in a 2017 Chevrolet Silverado?
- Common symptoms include the vehicle not starting, the engine stalling, or the immobilizer warning light illuminating on the dashboard.
2. What does the OBDII code B3902 "Incorrect Immobilizer Identifier Received" indicate in a 2017 Chevrolet Silverado?
- This code indicates a communication error between the immobilizer system and the vehicle's electronic control module.
3. What are possible causes of OBDII code B3902 in a 2017 Chevrolet Silverado?
- Possible causes include a faulty immobilizer module, issues with the wiring or connections, or a malfunction in the electronic control module.
4. How can I diagnose OBDII code B3902 in my 2017 Chevrolet Silverado?
- Diagnosis typically involves using a diagnostic scanner to retrieve the specific code, checking the immobilizer system components for faults, and testing the wiring for continuity.
5. Can I drive my 2017 Chevrolet Silverado with OBDII code B3902?
- It is not recommended to drive the vehicle with this code present, as it may lead to potential starting or stalling issues, compromising safety and performance.
6. What repair steps can I take to fix OBDII code B3902 in my 2017 Chevrolet Silverado?
- Repair steps may include replacing the faulty immobilizer module, repairing any wiring issues, or reprogramming the electronic control module to synchronize with the immobilizer system.
7. Is it possible to reset OBDII code B3902 in a 2017 Chevrolet Silverado without professional help?
- Resetting this code may require specialized diagnostic equipment and knowledge, so it is advisable to seek assistance from a qualified mechanic or dealership.
8. How much does it typically cost to repair OBDII code B3902 in a 2017 Chevrolet Silverado?
- The cost of repair can vary depending on the specific issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.
9. Will OBDII code B3902 cause my 2017 Chevrolet Silverado to fail an emissions test?
- Yes, this code may cause the vehicle to fail an emissions test due to the potential impact on the immobilizer system, which is essential for proper engine operation.
10. Can OBDII code B3902 in a 2017 Chevrolet Silverado be prevented in the future?
- Regular maintenance, including checking the immobilizer system components and addressing any warning lights promptly, may help prevent this code from reoccurring.
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