AutoCodes – Chevrolet – B1445 2016 Chevrolet Silverado

B1445 2016 Chevrolet Silverado Code - Control Module Voltage Output Circuit

Quick Answer

The Body Control Module (BCM) controls the Retained Accessory Power Relay 1 and Retained Accessory Power Relay 2 through their control circuits by applying a voltage to the Retained Accessory Power Relay coil control circuit. Common causes include Faulty Retained Accessory Power Relay 1 or Retained Accessory Power Relay 2, Retained Accessory Power Relay harness is open or shorted, Retained Accessory Power Relay 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: B1445 2016 Chevrolet Silverado indicates Control Module Voltage Output Circuit.
Common causes: Common causes include Faulty Retained Accessory Power Relay 1 or Retained Accessory Power Relay 2, Retained Accessory Power Relay harness is open or shorted, Retained Accessory Power Relay 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 370

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 18, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1445 2016 Chevrolet Silverado Description

The Body Control Module (BCM) controls the Retained Accessory Power Relay 1 and Retained Accessory Power Relay 2 through their control circuits by applying a voltage to the Retained Accessory Power Relay coil control circuit. The Retained Accessory Power Relay 1 and Retained Accessory Power Relay 2 are energized when the ignition switch is in the ACCESSORY or the ON position. The Diagnostic Trouble Code (DTC) will be set when there is a fault in the Control Module Voltage Output Circuit.

OBDII Code B1445 2016 Chevrolet Silverado - Control Module Voltage Output Circuit - AutoCodes.com — B1445 2016 Chevrolet Silverado Code - Control Module Voltage Output Circuit

What does this mean?

What are the Possible Causes of the DTC B1445 2016 Chevrolet Silverado?

Faulty Retained Accessory Power Relay 1 or Retained Accessory Power Relay 2
Retained Accessory Power Relay harness is open or shorted
Retained Accessory Power Relay circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B1445 2016 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 B1445 2016 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 B1445 2016 Chevrolet Silverado code?

Need more information on how to fix the B1445 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 B1445 2016 Chevrolet Silverado Code

1. What does the OBDII code B1445 mean on a 2016 Chevrolet Silverado?

The B1445 code indicates an issue with the Control Module Voltage Output Circuit, which may involve abnormal voltage levels or a malfunction in the circuit.

2. What are the common symptoms of the B1445 code in a Silverado?

Typical symptoms include warning lights on the dashboard, intermittent electrical issues, and possibly unresponsive vehicle systems controlled by the affected circuit.

3. What causes the B1445 code to appear in a 2016 Chevrolet Silverado?

The code can be triggered by faulty wiring, a defective control module, loose electrical connections, or a short circuit in the voltage output system.

4. Can driving with the B1445 code damage my 2016 Chevrolet Silverado?

While you may still be able to drive, ignoring the code can lead to further electrical malfunctions or damage to the control module, so repairs should not be delayed.

5. How do I diagnose the B1445 code on my Silverado?

Start by scanning the code with an OBDII scanner, inspecting the wiring and connectors in the voltage output circuit, and testing the control module for proper functionality.

6. Is the control module itself always the problem with a B1445 code?

Not necessarily. The issue could be with wiring, connectors, or an external component. Proper diagnosis is essential to pinpoint the root cause.

7. How much does it cost to fix the B1445 code on a 2016 Silverado?

Repair costs vary depending on the issue. Replacing wiring or connectors is generally inexpensive, while replacing the control module may cost several hundred dollars.

8. Can I fix the B1445 code on my Silverado myself?

If you have experience with automotive electrical systems, you can check for loose connections or damaged wiring. However, control module replacement or programming may require professional assistance.

9. Can a weak battery cause the B1445 code in a 2016 Chevrolet Silverado?

Yes, a weak or failing battery can cause voltage irregularities, triggering the B1445 code. Ensure the battery is in good condition before diagnosing further.

10. Will clearing the B1445 code with a scanner fix the problem?

Clearing the code will remove it temporarily, but the issue will return if the underlying problem is not resolved. Proper diagnosis and repair are necessary.