B3145 2017 Chevrolet Silverado Code - Passenger Door Unlock Switch Circuit
Quick Answer
The Body Control Module (BCM) monitors the voltage level of the door lock and door unlock signal circuits. Common causes include Faulty Passenger Door Unlock Switch, Passenger Door Unlock Switch harness is open or shorted, Passenger Door Unlock Switch 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
- B3145 2017 Chevrolet Silverado indicates Passenger Door Unlock Switch Circuit.
- Common causes
- Common causes include Faulty Passenger Door Unlock Switch, Passenger Door Unlock Switch harness is open or shorted, Passenger Door Unlock Switch 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 B3145 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC B3145 2017 Chevrolet Silverado?
- Faulty Passenger Door Unlock Switch
- Passenger Door Unlock Switch harness is open or shorted
- Passenger Door Unlock Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B3145 2017 Chevrolet Silverado?
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 B3145 2017 Chevrolet Silverado 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 B3145 2017 Chevrolet Silverado Code
1. What does the OBDII code B3145 mean on a 2017 Chevrolet Silverado?
B3145 indicates a problem with the passenger door unlock switch circuit, which may involve wiring, connectors, or the switch itself.
2. What are the common symptoms of code B3145 in a 2017 Chevy Silverado?
Typical symptoms include the passenger door not unlocking with the switch, intermittent unlocking functionality, or a dashboard warning light.
3. What causes the B3145 code to appear on a 2017 Chevrolet Silverado?
The code can be caused by a faulty passenger door unlock switch, damaged wiring, a loose or corroded connector, or a malfunction in the door control module.
4. How can I diagnose the B3145 code on my Silverado?
Start by inspecting the passenger door unlock switch and its wiring for damage or corrosion, then use a scan tool to verify the code and monitor the circuit’s functionality.
5. Can I still drive my 2017 Chevy Silverado with a B3145 code?
Yes, the vehicle is drivable, but the passenger door may not unlock properly, which can be inconvenient or a safety concern.
6. How do I fix the B3145 code on a 2017 Chevrolet Silverado?
Repairs may include replacing the faulty unlock switch, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming the door control module.
7. How much does it cost to fix the B3145 code on a Chevy Silverado?
Repair costs vary but can range from $50 to $300, depending on whether the issue is with the switch, wiring, or module.
8. Can a weak battery cause the B3145 code in a 2017 Silverado?
A weak battery is unlikely to directly cause this code but could contribute to electrical issues. Ensure the battery is in good condition as part of the diagnostic process.
9. Is it possible to clear the B3145 code without repairs?
You can clear the code with a scan tool, but if the underlying issue isn't fixed, the code will likely return.
10. Do I need to replace the door control module to fix the B3145 code?
Replacing the door control module is only necessary if diagnostics confirm it is malfunctioning. Most issues are related to the switch or wiring.
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