Script for mileage correction in DKNR instrument clusters of Kia/Hyundai 2021 cars made on Renesas R7F7014xx microcontrollers. The script supports reading/writing DataFlash of the microcontroller, has a built-in mileage calculator.
The mileage calculation is accurate to a hundred kilometers, i.e. if you see 26156 km on the display, the calculator will determine the mileage of 26100 km. Accordingly, if you enter 100 km, then the panel display will show a mileage equal to 100 km + the remainder of dividing the old mileage by 100 (26156/100 remainder 56 km) = 156 km. When entering a new mileage of 0, you will get a mileage of 56 km. Of course, this has its own downside, that you cannot accurately set the desired mileage (although usually, few customers need exact numbers). But there is also a plus, that you don’t need to first reset the mileage to 0 via UART and then set the desired mileage via diagnostics as is done in other devices.
List of supported car models:
Kia Cerato 2021+ (R7F701401)
Kia Ceed 2021+ (R7F701401)
Kia Carnival 2021+ (R7F701421)
Hyundai Alcazar 2021+ Full LCD (R7F701421)
Hyundai Staria 2021+ Full LCD (R7F701421)
Hyundai Kona 2021+ Full LCD (R7F701401)
Hyundai Tucson 2021+ (R7F701421)
Hyundai Tucson 2021+ Full LCD (R7F701421)
