B1380 2016 GMC Sierra Code - Control Module Ignition Accessory Circuit
Quick Answer
The B1380 diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to an issue with the Control Module Ignition Accessory Circuit. Common causes include Damaged wiring in the ignition accessory circuit, Faulty 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 2016 GMC Sierra indicates Control Module Ignition Accessory Circuit.
- Common causes
- Common causes include Damaged wiring in the ignition accessory circuit, Faulty 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 2016 GMC Sierra Description
The B1380 diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to an issue with the Control Module Ignition Accessory Circuit. This code indicates a problem with the circuit that controls the ignition accessory functions in the vehicle. The ignition accessory circuit is responsible for powering components such as the radio, power windows, and interior lights when the ignition is in the accessory position. When this circuit malfunctions, it can lead to various issues with the vehicle's electrical systems.
Common Causes of B1380 2016 GMC Sierra
- Damaged wiring in the ignition accessory circuit
- Faulty ignition switch
- Malfunctioning control module
- Blown fuse
- Corrosion or poor connections in the circuit
Symptoms of B1380 2016 GMC Sierra
- Inoperative radio or other accessories
- Power windows not working
- Interior lights not turning on
- Vehicle not starting in accessory mode
- Fuse blowing repeatedly
How to Fix B1380 2016 GMC Sierra
- Perform a thorough inspection of the ignition accessory circuit to identify any damaged wiring or components.
- Test the ignition switch and control module for proper functionality.
- Replace any damaged wiring, faulty components, or blown fuses as needed.
- Clear the DTC from the vehicle's computer system and test the affected accessories to ensure they are operating correctly.
- If necessary, reprogram the control module to address any issues with its operation.
Cost to Fix B1380 2016 GMC Sierra
The typical repair costs for addressing a B1380 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts and labor for this type of repair can range from $100 to $500. It's important to note that the actual cost may be higher or lower based on factors such as the location of the repair shop, the make and model of the vehicle, and the type of engine. Additionally, diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. For a more accurate estimate, it is recommended to consult with a qualified mechanic or repair shop in your area.
Tech Notes for B1380 2016 GMC Sierra
B1380:04 Control Module Ignition Accessory Circuit Short to Ground or Open
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Frequently Asked Questions about B1380 2016 GMC Sierra Code
1. What does the OBDII code B1380 mean on a 2016 GMC Sierra?
The B1380 code indicates an issue with the Control Module Ignition Accessory Circuit, which is responsible for controlling accessory power in the vehicle.
2. What are the common symptoms of the B1380 code?
Symptoms may include inoperative accessories (radio, windows, or power outlets), electrical malfunctions, or the vehicle failing to enter accessory mode.
3. What causes the B1380 code to appear?
Common causes include a faulty ignition switch, wiring issues (such as short circuits or open circuits), or a malfunctioning control module.
4. How can I diagnose the B1380 code on my 2016 GMC Sierra?
Start by inspecting the ignition switch, accessory circuit wiring, and related fuses for damage or corrosion. Use a scan tool to monitor circuit voltages.
5. Can a blown fuse trigger the B1380 code?
Yes, a blown fuse in the accessory circuit can cause the code to appear by disrupting the circuit's functionality.
6. How do I fix the B1380 code?
Repairs may include replacing a faulty ignition switch, repairing damaged wiring, replacing a blown fuse, or reprogramming or replacing the control module.
7. Can I drive my 2016 GMC Sierra with the B1380 code?
It’s not recommended, as the code may indicate electrical issues that could affect accessory functions or lead to further damage.
8. How much does it cost to repair the B1380 code?
Costs vary depending on the root cause but typically range from $100 for simple wiring repairs to $500 or more for ignition switch or control module replacement.
9. Can a weak battery cause the B1380 code?
Yes, a weak or failing battery can cause voltage irregularities that may trigger this code.
10. Will clearing the B1380 code fix the problem?
Clearing the code without addressing the underlying issue will not fix the problem, and the code is likely to return.
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