B1380 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 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 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?
- 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?
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
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1380 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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Information for Specific Makes
- B1380 Buick — Control Module Ignition Accessory Circuit
- B1380 Cadillac — Control Module Ignition Accessory Circuit
- B1380 Chevrolet — Control Module Ignition Accessory Circuit
- B1380 GMC — Control Module Ignition Accessory Circuit
- B1380 Hyundai — Front-Driver Side Airbag Resistance Circuit Short To Ground
- B1380 KIA — Front-Driver Side Airbag Resistance Circuit Short To Ground
- B1380 Pontiac — Control Module Ignition Accessory Circuit
- B1380 Saturn — Control Module Ignition Accessory Circuit
Frequently Asked Questions about B1380 Code
1. What are the common symptoms of OBDII code B1380 (Control Module Ignition Accessory Circuit)?
- Common symptoms include issues with keyless entry, power windows, interior lights, and other accessories not functioning properly.
2. What are the possible causes of OBDII code B1380?
- Possible causes include a faulty ignition switch, damaged wiring in the ignition circuit, or a malfunctioning control module.
3. How can I diagnose the cause of OBDII code B1380?
- You can diagnose the cause by performing a visual inspection of the ignition circuit wiring, testing the ignition switch for proper operation, and using a scan tool to check for related codes.
4. Can a DIYer repair OBDII code B1380 at home?
- Repairing this code may require advanced electrical knowledge and specialized tools, so it is recommended to consult a professional technician for proper diagnosis and repair.
5. Is it safe to continue driving with OBDII code B1380 active?
- It is generally safe to drive with this code, but it is important to address the underlying issue promptly to prevent further electrical problems.
6. How much does it typically cost to repair OBDII code B1380?
- The cost of repair can vary depending on the specific cause of the code, but it may range from $100 to $500 or more, including parts and labor.
7. Can a low battery voltage trigger OBDII code B1380?
- Yes, a low battery voltage can cause electrical issues that may trigger code B1380, so it is important to ensure the battery is in good condition.
8. Are there any common mistakes to avoid when troubleshooting OBDII code B1380?
- Common mistakes include overlooking loose connections, not checking all related circuits, and replacing parts without proper diagnosis.
9. How long does it typically take to diagnose OBDII code B1380?
- The diagnosis process can take anywhere from 30 minutes to a few hours, depending on the complexity of the issue and the technician's experience.
10. Will resetting the OBDII system clear code B1380?
- Resetting the system may temporarily clear the code, but it will likely reappear if the underlying issue is not addressed.
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