Engine-Codes - Mercury - B105A MERCURY

B105A MERCURY Code - Cabin Temperature Sensor Fan Circuit Short

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

|B105A MERCURY code possible causes

  • Faulty
  • harness is open or shorted
  • circuit poor electrical connection

|How is the B105A MERCURY 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.

|B105A MERCURY code tech notes

B105A:12 Cabin Temperature Sensor Fan Circuit Short To Battery
B105A:14 Cabin Temperature Sensor Fan Circuit Short To Ground or Open

|What is the cost to diagnose the B105A MERCURY code

Labor: 1.0

The cost to diagnose the B105A MERCURY 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 B105A MERCURY code possible symptoms?

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

|What is B105A MERCURY code meaning?

The in-vehicle temperature and humidity sensor contains a thermistor and a sensing element which separately measures the in-vehicle air temperature and the humidity, then sends those readings to the FCIM. The in-vehicle temperature and humidity sensor has an electric fan within the sensor that draws in-vehicle air across the two sensing elements. The FCIM may adjust the actuator doors based on the in-vehicle temperature and humidity sensor information to maintain the desired humidity and temperature of the passenger cabin air. The Front Controls Interface Module (FCIM) monitors the Cabin Temperature Sensor Fan. The FCIM sets the OBDII code when the Cabin Temperature Sensor Fan is not to factory specifications.

|Need more information with the B105A MERCURY code?

Need more information on how to fix the B105A MERCURY code?
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|Need help with a B105A MERCURY code?

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