AutoCodes – Chevrolet – B1380 2017 Chevrolet Silverado

B1380 2017 Chevrolet Silverado 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 2017 Chevrolet Silverado 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.

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Code Popularity 736

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Apr 17, 2023

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code B1380 2017 Chevrolet Silverado Description

The vehicle Power Mode Master (PMM) is the Body Control Module (BCM). The ignition switch is a low-current switch with multiple discrete circuits to the BCM. The BCM logic uses the ignition switch positions to identify the operator's desired power mode and activate specific discrete signals, and serial data messages for the operation of different subsystems as necessary. Other modules which have switched voltage inputs may operate in a default mode if the Power Mode Master serial data message does not match what the individual module can detect from its own connections.
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.

OBDII Code B1380 2017 Chevrolet Silverado - Control Module Ignition Accessory Circuit - AutoCodes.com — B1380 2017 Chevrolet Silverado Code - Control Module Ignition Accessory Circuit

What does this mean?

What are the Possible Causes of the DTC B1380 2017 Chevrolet Silverado?

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 2017 Chevrolet Silverado?

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.

What does this mean?

Code Tech Notes

B1380:01 Control Module Ignition Accessory Circuit Short to Battery
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 2017 Chevrolet Silverado 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1380 2017 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B1380 in a 2017 Chevrolet Silverado?

The common symptoms include difficulty starting the vehicle, loss of power accessories like radio and power windows, and the ignition key not turning.

2. What does the OBDII code B1380 in a 2017 Chevrolet Silverado indicate?

The code B1380 indicates a fault in the Control Module Ignition Accessory Circuit.

3. What are the possible causes of OBDII code B1380 in a 2017 Chevrolet Silverado?

Possible causes include a faulty ignition switch, damaged wiring in the ignition circuit, or a malfunctioning ignition control module.

4. How can I diagnose the OBDII code B1380 in my 2017 Chevrolet Silverado?

Diagnosing the code involves checking the ignition switch for proper operation, inspecting the wiring for any damage or loose connections, and testing the ignition control module.

5. Can I repair OBDII code B1380 in my 2017 Chevrolet Silverado myself?

If you have experience with automotive repairs and access to the necessary tools, you may be able to repair the issue yourself by replacing the faulty ignition switch, repairing damaged wiring, or replacing the ignition control module.

6. Is it safe to continue driving my 2017 Chevrolet Silverado with OBDII code B1380?

It is not recommended to drive the vehicle with this code as it can lead to potential issues with starting the vehicle and loss of power to essential accessories.

7. How much does it typically cost to repair OBDII code B1380 in a 2017 Chevrolet Silverado?

The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can a bad battery cause OBDII code B1380 to appear in a 2017 Chevrolet Silverado?

A bad battery can indirectly cause issues with the ignition system, leading to the code B1380. It is advisable to check the battery as part of the diagnostic process.

9. Will resetting the OBDII code B1380 in my 2017 Chevrolet Silverado make it go away permanently?

Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not resolved, it is likely to reappear once the problem is detected again.

10. How long does it take to repair OBDII code B1380 in a 2017 Chevrolet Silverado?

The repair time can vary depending on the exact cause of the issue and the expertise of the person performing the repair. It may take anywhere from 1 to 3 hours to complete the repair.