The climate seat module sees an open in the driver seat thermoelectric driver circuit
What it means
B103C. The climate seat module sees an open in the driver seat thermoelectric driver circuit. The driver seat heating and cooling stop working.
Findings, check these first
- Open thermoelectric output circuit
- Disconnected seat connector
- High resistance in the seat thermoelectric device
- Faulty thermoelectric seat assembly
- Faulty climate controlled seat module
Standard procedure
- Confirm the code and test the climate seat operation
- Inspect the seat connector and wiring for an open
- Test the thermoelectric device for high resistance
- Check the output circuit end to end
- Replace the failed seat assembly or module after tests
Code lookup
Type a code above, or start from a symptom or a common code.
Press / to jump to the box. Ford-enhanced powertrain, body, chassis and network codes. Generic P0xxx codes live on OBD Codes List.
Sources and review
Review: checked against the recorded source material.
- B103C FORD: Code Meaning, Causes, Symptoms, & Tech Notes | Engine-Codes.com
archived reference page (engine-codes.com via Wayback Machine)
Supports: code identity, Ford meaning and possible causes
Fetched directly. Ford title, meaning and causes match the catalog record. Model and year fitment remain curator claims.
- B103C FORD Thermoelectric Driver Open Load | AutoCodes.com
archived reference page (autocodes.com via Wayback Machine)
Supports: corroboration of Ford meaning and causes
Same Ford text as the engine-codes page (both sites share one publisher).
Last updated 2026-09-26.
Report a correction for B103C. Include your vehicle, the issue and a source if you have one.