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Engine-Codes - Generic - B1100

B1100 Code - Door Multiplex Control Unit

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

|B1100 code possible causes

  • Faulty Door Multiplex Control Unit
  • Door Multiplex Control Unit harness is open or shorted
  • Door Multiplex Control Unit circuit poor electrical connection

|How is the B1100 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 B1100 code

Labor: 1.0

The cost to diagnose the B1100 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are B1100 code possible symptoms?

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

|What is B1100 code meaning?

The Multiplex Control Unit Module (MICU) monitors the Door Multiplex Control Unit. The MICU sets the OBDII code when the Door Multiplex Control Unit is not to factory specifications.

|Need more information with the B1100 code?

Need more information on how to fix the B1100 code?
Get Access to Factory Service Manuals

|B1100 code information for specific makes

|Need help with a B1100 code?

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