Engine-Codes - Mercury - B103C MERCURY

B103C MERCURY - Thermoelectric Driver Open Load

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

B103C MERCURY Possible Causes

  • Faulty Thermo-Electric Device (TED) Assembly
  • Thermo-Electric Device (TED) Assembly harness is open or shorted
  • Thermo-Electric Device (TED) Assembly circuit poor electrical connection
  • Faulty Dual Climate Controlled Seat Module (DCSM)

How is the B103C 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.

What is the cost to diagnose the B103C MERCURY code

Labor: 1.0

The cost to diagnose the B103C MERCURY 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.
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Possible Symptoms

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

B103C MERCURY Meaning

The seat cushion and backrest are equipped with a Thermo-Electric Device (TED) Assembly that includes a seat blower (fan motor, serviced as an assembly with the TED). If the Dual Climate Controlled Seat Module (DCSM) detects an open circuit or high TED resistance, the following Diagnostic Trouble Code (DTC) will be set: DTC B103C (Thermoelectric Driver Open Load) - If DCSM outputs to the driver seat backrest or cushion TED or any components within these circuit loops are open, disconnected or a TED resistance greater than 90, 000 ohms is sensed, the DCSM continues normal operation and sets this DTC.

More Information

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