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Firmware

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Accepts 4 MiB TC179x / MEDC17 flash dumps only (validated in-browser before upload).

Max fan demand % Upper HSB °C Lower HSB °C

P241D enabled — bypass emissions engine-off

Speed-based factor applied to fan PWM demand (km/h → max PWM %).

Speed km/h	Max Fan PWM %

Row breakpoints for the fan map (°C).

#	Coolant °C

Column breakpoints for the fan map (km/h).

#	Speed km/h

Fan PWM % at each coolant temperature (rows) × vehicle speed (columns). Labels update when you edit the steps above.

Detected offsets