The heating module sees a fault in the left front seat heater sensor
What it means
B1038. The heating module sees a fault in the left front seat heater sensor. The seat may overheat or shut off early because temperature cannot be read.
Findings, check these first
- Faulty left front seat heater sensor
- Short in the heater sensor circuit
- Poor connector under the seat
- Chafed heater sensor wiring
- Faulty heating and air conditioning module
Standard procedure
- Confirm the code and test the seat heater operation
- Inspect the under seat connector and wiring
- Test the sensor circuit for a short to ground or voltage
- Check the heater mat temperature sensor
- Replace the failed sensor 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.
- B1038 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.
- B1038 FORD Left Front Seat Heater Sensor | 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 B1038. Include your vehicle, the issue and a source if you have one.