AutoCodes – Chevrolet – B1445 2018 Chevrolet Silverado

B1445 2018 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 2018 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 225
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 18, 2023
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Code B1445 2018 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 2018 Chevrolet Silverado - Control Module Voltage Output Circuit - AutoCodes.com
B1445 2018 Chevrolet Silverado Code - Control Module Voltage Output Circuit

What are the Possible Causes of the DTC B1445 2018 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 2018 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 2018 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 2018 Chevrolet Silverado code?

Need more information on how to fix the B1445 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1445 2018 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 B1445 2018 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B1445 on a 2018 Chevrolet Silverado?

- Common symptoms include illuminated check engine light, issues with the vehicle's electrical systems, and potential drivability issues.

2. What does OBDII code B1445 indicate on a 2018 Chevrolet Silverado?

- OBDII code B1445 indicates a problem with the Control Module Voltage Output Circuit in the vehicle.

3. What are the possible causes of OBDII code B1445 on a 2018 Chevrolet Silverado?

- Possible causes include faulty control module, damaged wiring or connectors, electrical issues, or a malfunctioning voltage regulator.

4. How can I diagnose OBDII code B1445 on my 2018 Chevrolet Silverado?

- Diagnosing the code involves using a diagnostic scanner to retrieve the specific fault code, inspecting the wiring and connectors, and testing the control module and voltage regulator.

5. Is it safe to drive my 2018 Chevrolet Silverado with OBDII code B1445?

- It is generally not recommended to drive the vehicle with this code present, as it can lead to further electrical problems or drivability issues.

6. How can I repair OBDII code B1445 on a 2018 Chevrolet Silverado?

- Repairing the code may involve replacing a faulty control module, repairing damaged wiring or connectors, or addressing any underlying electrical issues causing the fault.

7. Can a DIY enthusiast fix OBDII code B1445 on a 2018 Chevrolet Silverado?

- Depending on the root cause of the issue, some DIY enthusiasts with automotive repair experience may be able to address the problem. However, complex electrical issues may require professional help.

8. How much does it typically cost to repair OBDII code B1445 on a 2018 Chevrolet Silverado?

- The cost of repairing this code can vary depending on the extent of the issue and the specific repairs needed, but it may range from a few hundred to over a thousand dollars.

9. Will resetting the OBDII code B1445 on my 2018 Chevrolet Silverado make it go away permanently?

- Simply resetting the code may temporarily clear the check engine light, but if the underlying issue causing the fault is not addressed, the code is likely to reappear.

10. How long does it take to repair OBDII code B1445 on a 2018 Chevrolet Silverado?

- The repair time can vary based on the complexity of the issue and the availability of parts, but it may take a few hours to a full day for a professional technician to diagnose and fix the problem.

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