B1380 2014 GMC Sierra Code - Control Module Ignition Accessory Circuit
Quick Answer
The vehicle Power Mode Master (PMM) is the Body Control Module (BCM). Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition 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
- B1380 2014 GMC Sierra indicates Control Module Ignition Accessory Circuit.
- Common causes
- Common causes include Faulty Ignition Switch, Ignition Switch harness is open or shorted, Ignition 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 B1380 2014 GMC Sierra Description
The Power Mode Master will activate relays and other direct outputs of the Power Mode Master as needed according to the calculated power mode. Some relays controlled by the BCM are switched ignition voltage outputs that are pass-through circuits within the BCM directly from the ignition switch. If these circuits are short to ground, the B+ circuit fuse to the ignition switch will open.
What are the Possible Causes of the DTC B1380 2014 GMC Sierra?
- Faulty Ignition Switch
- Ignition Switch harness is open or shorted
- Ignition Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B1380 2014 GMC Sierra?
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.
Code Tech Notes
B1380:04 Control Module Ignition Accessory Circuit Short to Ground or Open
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What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1380 2014 GMC Sierra 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 B1380 2014 GMC Sierra Code
1. What does the OBDII code B1380 mean on a 2014 GMC Sierra?
The B1380 code indicates an issue with the Control Module Ignition Accessory Circuit, which controls power to accessories like the radio and power windows when the ignition is in the accessory position.
2. What are the common symptoms of the B1380 code in a 2014 GMC Sierra?
Symptoms may include non-functional accessories (radio, power windows, etc.), a drained battery, or intermittent power loss to these systems.
3. What causes the B1380 code to trigger on a 2014 GMC Sierra?
Common causes include a faulty ignition switch, damaged wiring or connectors in the accessory circuit, or a malfunctioning control module.
4. Can a dead battery trigger the B1380 code in a 2014 GMC Sierra?
While a dead battery itself won’t directly trigger the code, issues like a parasitic drain from a short in the accessory circuit could cause both the battery to drain and the code to appear.
5. How do you diagnose the B1380 code on a 2014 GMC Sierra?
Diagnosis involves checking the ignition switch for proper operation, inspecting wiring and connectors for damage, and testing the control module for faults using a scan tool.
6. Is it safe to drive with the B1380 code active in a 2014 GMC Sierra?
Yes, but it’s not advisable, as the affected accessories may not function properly, and there could be a risk of further electrical damage if the issue isn’t addressed.
7. What repairs can fix the B1380 code in a 2014 GMC Sierra?
Repairs may include replacing the ignition switch, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the control module if necessary.
8. How much does it cost to fix the B1380 code on a 2014 GMC Sierra?
Repair costs vary, but ignition switch replacement typically ranges from $150 to $300, while wiring repairs or module replacement could cost more depending on the extent of the issue.
9. Can clearing the B1380 code solve the issue in a 2014 GMC Sierra?
Clearing the code may temporarily remove it, but if the underlying problem isn’t resolved, the code will likely return.
10. How can I prevent the B1380 code from occurring on my 2014 GMC Sierra?
Regularly inspect and maintain electrical systems, avoid overloading circuits with aftermarket accessories, and address any ignition switch or wiring issues promptly.
Discuss the causes and fixes for B1380 2014 GMC Sierra OBDII Code
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