Engine-Codes - Buick - B0856 BUICK

B0856 BUICK - Memory Seat Module 5 Volt Reference Out of Range

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

B0856 BUICK Possible Causes

  • Faulty Memory Seat Module
  • Memory Seat Module harness is open or shorted
  • Memory Seat Module circuit poor electrical connection

How is the B0856 BUICK code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

What is the cost to diagnose the B0856 BUICK code

Labor: 1.0

The cost to diagnose the B0856 BUICK code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
How much do you know about cars?

Take the AutoCodes.com automotive tests and turbo-charge your car repair knowledge

Play Now

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B0856 BUICK Meaning

The Memory Seat Module has two battery voltage supply circuits. The battery 1 voltage supply circuit is used to provide power for the memory seat module logic and internal driver operation. The battery 2 voltage supply circuit is used to provide a high current supply for the memory seat module output devices.

More Information

Need more information on how to fix the B0856 BUICK code?
Get Access to Factory Service Manuals

Need more help?

Get the B0856 Buick code diagnosed by a professional: Find a repair shop in your area