Engine-Codes - Mercury - B103A Mercury

B103A Mercury Code - Right Front Seat Heater Sensor

- Code Popularity: 834 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 2/3
Table of contents

|What are the Possible Causes of the Code B103A Mercury?

  • Faulty Right Front Seat Heater Sensor
  • Right Front Seat Heater Sensor harness is open or shorted
  • Right Front Seat Heater Sensor circuit poor electrical connection

|How to Fix the B103A Mercury Code?

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.

|Code B103A Mercury Tech Notes

B103A:11 Right Front Seat Heater Sensor: Circuit Short To Ground
B103A:12 Right Front Seat Heater Sensor: Circuit Short To Battery

|What is the Cost to Diagnose the Code B103A Mercury?

Labor: 1.0

The cost to diagnose the B103A 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.

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|What are Code B103A Mercury Possible Symptoms?

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

|What Does the B103A Mercury Code Mean?

The engine must be running for the heated seat system to operate. The driver and passenger heated seat buttons are selected from the touchscreen interface, which initiates the CAN communication to request heated seat operation. Upon receiving the request, the Heating, Ventilation, and Air Conditioning (HVAC) Module supplies voltage to the appropriate driver and/or passenger seat cushion and backrest heater mats, which are connected in series. Temperature is maintained by the HVAC module using a sensor contained within the cushion heater mat. The HVAC module supplies a reference voltage to the temperature sensor and monitors the return signal from the temperature sensor for controlling current flow to the heater mats. The HVAC module remains on, heating the seat and maintaining temperature until commanded off from the touchscreen (or until the ignition is turned OFF).

Right Front Seat Heater Sensor

|Need more Information on the B103A Mercury Code?

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|Need Help with the B103A Mercury Code?

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