AutoCodes – Chevrolet – B1400 2014 Chevrolet Silverado

B1400 2014 Chevrolet Silverado Code - Control Module Supply Circuit 2

Quick Answer

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Common causes include Low battery voltage, Faulty Control Module, Control Module harness is open or shorted. 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: B1400 2014 Chevrolet Silverado indicates Control Module Supply Circuit 2.
Common causes: Common causes include Low battery voltage, Faulty Control Module, Control Module harness is open or shorted.
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 331

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 11, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1400 2014 Chevrolet Silverado Description

The vehicle control modules or sensors monitor the system voltage to verify the system voltage is within the normal operating range. Damage to components, and incorrect data can occur when the voltage is out of range. The vehicle has multiple Control Modules that will set this Diagnostic Trouble Code (DTC).

OBDII Code B1400 2014 Chevrolet Silverado - Control Module Supply Circuit 2 - AutoCodes.com — B1400 2014 Chevrolet Silverado Code - Control Module Supply Circuit 2

What does this mean?

What are the Possible Causes of the DTC B1400 2014 Chevrolet Silverado?

Low battery voltage
Faulty Control Module
Control Module harness is open or shorted
Control Module circuit poor electrical connection

How to Fix the DTC B1400 2014 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1400 2014 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.

Need more information about the B1400 2014 Chevrolet Silverado code?

Need more information on how to fix the B1400 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1400 2014 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 B1400 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B1400 in a 2014 Chevrolet Silverado?

- Common symptoms include issues with the control module power supply circuit 2, such as erratic behavior of electronic components or malfunctions in various vehicle systems.

2. What can cause the OBDII code B1400 to appear in a 2014 Chevrolet Silverado?

- The code B1400 can be triggered by issues like a faulty control module, damaged wiring in the supply circuit, or a problem with the power source itself.

3. How can I diagnose the Control Module Supply Circuit 2 problem in my 2014 Chevrolet Silverado?

- To diagnose the issue, a professional mechanic may use a diagnostic scanner to retrieve the specific trouble codes, inspect the wiring for any damage, and test the control module and related components.

4. Can I still drive my 2014 Chevrolet Silverado with the OBDII code B1400 present?

- It's not recommended to continue driving with the B1400 code active, as it could lead to further electrical problems and potential malfunctions in critical vehicle systems.

5. Are there any DIY repair tips for fixing the Control Module Supply Circuit 2 issue in a 2014 Chevrolet Silverado?

- DIY repairs for OBDII code B1400 are not recommended due to the complexity of the electrical system involved. It's best to seek professional help for an accurate diagnosis and proper repair.

6. Is the OBDII code B1400 in a 2014 Chevrolet Silverado a serious issue?

- Yes, the B1400 code indicates a problem with the control module supply circuit 2, which can impact the proper functioning of various electronic components in the vehicle.

7. How much does it typically cost to repair the Control Module Supply Circuit 2 problem in a 2014 Chevrolet Silverado?

- The cost of repairs for the B1400 code can vary depending on the exact cause of the issue, but it may involve replacing the control module, repairing damaged wiring, or addressing power supply issues.

8. Can a bad battery or alternator cause the OBDII code B1400 in a 2014 Chevrolet Silverado?

- Yes, a failing battery or alternator can potentially lead to control module supply circuit issues, triggering the B1400 code in a 2014 Chevrolet Silverado.

9. Will resetting the OBDII code B1400 in a 2014 Chevrolet Silverado make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the B1400 code is not addressed, it is likely to reappear once the problem persists.

10. How long does it take to repair the Control Module Supply Circuit 2 problem in a 2014 Chevrolet Silverado?

- The repair time for the B1400 code can vary based on the exact cause of the issue and the extent of the repairs needed. It's best to consult with a professional mechanic for an accurate estimate.