B1390 2014 Chevrolet Silverado Code - Control Module Supply Circuit 1
Quick Answer
The B1390 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado relates to the Control Module Supply Circuit 1. Common causes include Wiring harness damage or corrosion, Loose or damaged connectors in the control module supply circuit, A faulty control module that is drawing excessive power. 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 2014 Chevrolet Silverado indicates Control Module Supply Circuit 1.
- Common causes
- Common causes include Wiring harness damage or corrosion, Loose or damaged connectors in the control module supply circuit, A faulty control module that is drawing excessive power.
- 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 2014 Chevrolet Silverado Description
The B1390 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado relates to the Control Module Supply Circuit 1. This code indicates that there is a malfunction in the circuit responsible for supplying power to a specific control module within the vehicle's electronic system. In this case, Control Module Supply Circuit 1 refers to the primary power source for a particular control module.
Common Causes of B1390 2014 Chevrolet Silverado
- Wiring harness damage or corrosion.
- Loose or damaged connectors in the control module supply circuit.
- A faulty control module that is drawing excessive power.
- Issues with the power supply, such as a blown fuse or a weak battery.
- Water intrusion or exposure to moisture causing electrical shorts.
Symptoms of B1390 2014 Chevrolet Silverado
- Illumination of the check engine light on the dashboard.
- Erratic behavior or malfunctioning of the affected system (e.g., HVAC, ABS, transmission).
- Loss of power or responsiveness in certain vehicle functions.
- Inability to communicate with the affected control module using diagnostic tools.
- Intermittent electrical issues such as flickering lights or non-functional accessories.
How to Fix B1390 2014 Chevrolet Silverado
- Begin by conducting a thorough visual inspection of the wiring harness and connectors in the control module supply circuit.
- Test the power supply to ensure it is delivering the correct voltage to the control module.
- Use a multimeter to check for continuity and resistance in the circuit, identifying any open or short circuits.
- If necessary, replace any damaged wiring, connectors, or fuses in the circuit.
- If the issue persists, consider replacing the control module itself after confirming it is the root cause of the problem.
Cost to Fix B1390 2014 Chevrolet Silverado
The typical repair costs for addressing a B1390 code related to the Control Module Supply Circuit 1 in a 2014 Chevrolet Silverado can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the cost of parts for this repair could range from $100 to $300, while labor costs may add an additional $100 to $200. Overall, the total repair bill could fall within the $200 to $500 range, but it is advisable to obtain a detailed quote from a reputable auto repair shop. Keep in mind that diagnosis time and labor rates can vary, so it's recommended to inquire about local rates for a more accurate estimate.
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Frequently Asked Questions about B1390 2014 Chevrolet Silverado Code
1. What does OBDII code B1390 for a 2014 Chevrolet Silverado mean?
The B1390 code indicates a problem with Control Module Supply Circuit 1 in the vehicle's system.
2. What are the common symptoms of OBDII code B1390 in a 2014 Chevrolet Silverado?
Common symptoms include issues with starting the vehicle, rough idling, and potential stalling while driving.
3. What are the possible causes of OBDII code B1390 in a 2014 Chevrolet Silverado?
Possible causes include a faulty control module, damaged wiring or connectors, a weak or dead battery, or issues with the vehicle's charging system.
4. How can I diagnose the OBDII code B1390 in my 2014 Chevrolet Silverado?
Diagnosing the B1390 code typically involves using a diagnostic scanner to retrieve the specific details of the fault, checking the control module and related components for any visible damage, and testing the circuit for continuity.
5. Can I still drive my 2014 Chevrolet Silverado with the B1390 code?
It's not recommended to drive the vehicle with the B1390 code present, as it can lead to potential safety hazards and further damage to the vehicle's systems.
6. How do I repair OBDII code B1390 in a 2014 Chevrolet Silverado?
Repairing the B1390 code may involve replacing the faulty control module, repairing or replacing damaged wiring or connectors, ensuring the battery is in good condition, and addressing any issues with the charging system.
7. Is it necessary to reset the OBDII code B1390 after repairs on a 2014 Chevrolet Silverado?
Yes, it's important to clear the B1390 code after completing repairs to see if the issue has been successfully resolved and to turn off the Check Engine Light.
8. Can a DIY enthusiast fix the OBDII code B1390 in a 2014 Chevrolet Silverado?
Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to address simpler causes of the B1390 code, such as checking and cleaning connectors or replacing the battery. More complex issues may require professional assistance.
9. How much does it cost to repair OBDII code B1390 in a 2014 Chevrolet Silverado?
The cost of repairing the B1390 code can vary depending on the specific cause of the issue, parts needed for replacement, and labor rates. It's recommended to obtain quotes from reputable mechanics or repair shops.
10. Are there any preventive measures to avoid OBDII code B1390 in a 2014 Chevrolet Silverado?
Regular vehicle maintenance, including checking the battery health and ensuring proper electrical system function, can help prevent issues that may trigger the B1390 code.
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