B1380 2018 Chevrolet Silverado Code - Control Module Ignition Accessory Circuit
Quick Answer
The B1380 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado relates to the Control Module Ignition Accessory Circuit. Common causes include Faulty wiring or connections in the ignition accessory circuit, Defective ignition switch, Malfunctioning 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
- B1380 2018 Chevrolet Silverado indicates Control Module Ignition Accessory Circuit.
- Common causes
- Common causes include Faulty wiring or connections in the ignition accessory circuit, Defective ignition switch, Malfunctioning 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 B1380 2018 Chevrolet Silverado Description
The B1380 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado relates to the Control Module Ignition Accessory Circuit. This code indicates that there is a malfunction in the ignition accessory circuit within the control module. The ignition accessory circuit is responsible for providing power to various electrical components when the ignition is in the accessory position, allowing accessories like the radio, power windows, and interior lights to function without starting the engine.
Common Causes of B1380 2018 Chevrolet Silverado
- Faulty wiring or connections in the ignition accessory circuit
- Defective ignition switch
- Malfunctioning control module
- Blown fuse related to the ignition accessory circuit
- Electrical issues within the vehicle's system
Symptoms of B1380 2018 Chevrolet Silverado
- Difficulty starting the vehicle
- Loss of power to accessories when in the accessory position
- Inoperative power windows or interior lights
- Dashboard warning lights related to the control module
How to Fix B1380 2018 Chevrolet Silverado
- Begin by performing a thorough inspection of the ignition accessory circuit, checking for any visible damage or loose connections.
- Test the ignition switch to ensure it is functioning correctly. If found faulty, replace the ignition switch.
- Use a diagnostic tool to scan the control module for any stored fault codes and address them accordingly.
- Check and replace any blown fuses related to the ignition accessory circuit.
- Clear the DTC from the vehicle's memory and perform a final test to ensure proper functionality of the ignition accessory circuit.
Cost to Fix B1380 2018 Chevrolet Silverado
The typical repair costs for addressing the B1380 code on a 2018 Chevrolet Silverado can range from $150 to $500, depending on the specific cause of the issue and the labor rates at the repair facility. Factors such as location, vehicle make and model, and engine type can impact the overall cost. It's advisable to consult with a trusted auto repair shop to get an accurate estimate based on your vehicle's needs. Keep in mind that diagnostic time and labor rates can vary, with rates typically ranging between $80 and $150 per hour.
Tech Notes for B1380 2018 Chevrolet Silverado
B1380:04 Control Module Ignition Accessory Circuit Short to Ground or Open
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Frequently Asked Questions about B1380 2018 Chevrolet Silverado Code
1. What does the OBDII code B1380 mean on a 2018 Chevrolet Silverado?
The B1380 code indicates an issue with the Control Module Ignition Accessory Circuit, which may involve a malfunction in the accessory power supply to various systems.
2. What are the common symptoms of the B1380 code in a Chevrolet Silverado?
Symptoms may include non-functional accessories like the radio, power windows, or interior lights, as well as intermittent power loss to these systems.
3. What causes the B1380 code to appear?
The most common causes are faulty wiring, a malfunctioning ignition switch, a damaged accessory relay, or a failing control module.
4. How can I diagnose the B1380 code on my 2018 Silverado?
Start by inspecting the wiring and connectors in the ignition accessory circuit, check the accessory relay, and test the ignition switch for proper operation.
5. Can a blown fuse trigger the B1380 code?
Yes, a blown fuse in the accessory power circuit can cause this code to appear, as it disrupts the power supply to the control module.
6. Is the B1380 code serious?
It may not immediately affect drivability, but it can cause issues with essential accessories and should be addressed to avoid further electrical problems.
7. Can I drive my Silverado with the B1380 code active?
While the vehicle may still be drivable, you could experience loss of accessory functionality, so it’s best to resolve the issue promptly.
8. What repairs are commonly needed to fix the B1380 code?
Repairs may include replacing damaged wiring, repairing or replacing the ignition switch, replacing the accessory relay, or reprogramming/replacing the control module.
9. How much does it cost to fix the B1380 code on a Chevrolet Silverado?
The cost varies depending on the repair, but diagnosing and fixing wiring or relays typically costs $100–$300, while a control module replacement can cost $500 or more.
10. Can I reset the B1380 code without fixing it?
You can clear the code temporarily using an OBDII scanner, but it will likely return if the underlying issue isn’t resolved.
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