B1390 2015 Chevrolet Silverado Code - Control Module Supply Circuit 1
Quick Answer
The B1390 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado relates to the Control Module Supply Circuit 1. Common causes include Damaged wiring or connectors in the control module power supply circuit, Blown fuses related to the control module, Faulty control module. 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
- B1390 2015 Chevrolet Silverado indicates Control Module Supply Circuit 1.
- Common causes
- Common causes include Damaged wiring or connectors in the control module power supply circuit, Blown fuses related to the control module, Faulty control module.
- 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 B1390 2015 Chevrolet Silverado Description
The B1390 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado relates to the Control Module Supply Circuit 1. This code indicates a problem with the power supply circuit for a specific control module in the vehicle. In this case, Control Module Supply Circuit 1 refers to the primary power source for a particular control module within the vehicle's electronic control system.
Common Causes of B1390 2015 Chevrolet Silverado
- Damaged wiring or connectors in the control module power supply circuit
- Blown fuses related to the control module
- Faulty control module
- Corrosion or moisture in the electrical connections
- Electrical short circuits in the power supply circuit
Symptoms of B1390 2015 Chevrolet Silverado
- Check Engine Light illuminated on the dashboard
- Engine performance issues, such as rough idling or stalling
- Electrical system malfunctions, such as power windows or door locks not working
- Reduced fuel efficiency
- Inconsistent or erratic behavior in the affected system
How to Fix B1390 2015 Chevrolet Silverado
- Begin by conducting a thorough visual inspection of the control module power supply circuit, checking for any visible damage, loose connections, or corrosion.
- Use a multimeter to test the voltage at various points in the circuit to determine if the power supply is functioning correctly.
- Inspect and test the fuses related to the control module to ensure they are intact and functioning properly.
- If no issues are found with the wiring, connectors, or fuses, the control module itself may need to be replaced.
- Clear the DTC from the vehicle's onboard computer after completing the repair to reset the system and ensure the issue has been resolved.
Cost to Fix B1390 2015 Chevrolet Silverado
The typical repair costs for addressing a B1390 code on a 2015 Chevrolet Silverado can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair can range from $50 to $300, with labor costs adding an additional $80 to $150 per hour. The total cost of the repair may fall in the range of $150 to $600, but it is advisable to check with local auto repair shops for more accurate estimates based on your location and vehicle specifics. Keep in mind that rates at dealerships or in metropolitan areas may be higher, while independent shops often offer more competitive pricing.
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Frequently Asked Questions about B1390 2015 Chevrolet Silverado Code
1. What does the OBDII code B1390 mean on a 2015 Chevrolet Silverado?
Code B1390 indicates an issue with the Control Module Supply Circuit 1, which refers to a problem with the power supply to one of the vehicle's control modules.
2. What are the common symptoms of code B1390 in a 2015 Chevrolet Silverado?
Symptoms may include warning lights on the dashboard, intermittent electrical issues, failure of certain systems like lighting or HVAC, and possible starting difficulties.
3. What causes the B1390 code in a 2015 Chevrolet Silverado?
Common causes include a blown fuse, damaged wiring, a faulty control module, or poor electrical connections in the Control Module Supply Circuit 1.
4. Can a weak battery trigger the B1390 code on a 2015 Chevrolet Silverado?
Yes, a weak or failing battery can cause insufficient power to the control module, potentially triggering the B1390 code.
5. How can I diagnose the B1390 code on my 2015 Chevrolet Silverado?
Start by checking for blown fuses, inspecting wiring and connectors for damage or corrosion, and testing the battery and alternator to ensure proper voltage levels.
6. Is it safe to drive with a B1390 code on a 2015 Chevrolet Silverado?
While the vehicle may still be drivable, ignoring this code could cause further electrical issues or lead to critical system failures. It's best to address it promptly.
7. What are the repair options for code B1390 in a 2015 Chevrolet Silverado?
Repairs may include replacing a blown fuse, repairing or replacing damaged wiring, cleaning or securing electrical connections, or replacing a faulty control module.
8. How much does it cost to fix the B1390 code on a 2015 Chevrolet Silverado?
The cost depends on the root cause. A simple fuse replacement may cost under $50, while control module repairs or replacements could cost several hundred dollars.
9. Can I clear the B1390 code without fixing the issue?
You can clear the code with an OBDII scanner, but if the underlying issue isn’t resolved, the code will likely return and could cause further problems.
10. Do I need professional help to fix the B1390 code on a 2015 Chevrolet Silverado?
While basic checks like inspecting fuses can be done at home, diagnosing and repairing wiring or control module issues may require professional expertise and diagnostic tools.
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