31 Mar.’ 2026
Flex version 7.53.0.0
Flex version 7.53.0.0 is now available
The UTCU4 transmission control unit installed on Ford F-250 and F-350 vehicles equipped with 6.7L and 7.3L engines is now supported in OBD by FLEX.
Programming is simple and safe: simply connect the red OBD cable supplied with your Flex kit to the vehicle’s diagnostic port for immediate access to map reading and writing operations.
The 7.53.0.0 update optimizes shift times, improving driving customization and helping reduce fuel consumption.
Note:
Currently supported version: UTCU400_FT3_200.
Supported Vehicles
- Ford F-250 Super Duty (V) 6.7L Power Stroke V8 TD 475HP (2023MY)
- Ford F-350 Super Duty (V) 6.7L Power Stroke V8 TD 500HP (2023MY)
- Ford F-350 Super Duty (V) 7.3L Godzilla V8 424HP (2023MY)
New protocol available for the following software packages:
OBD
- FLS0.5M – SW Flex Full Master
- FLS0.5S – SW Flex Full Slave
- FLS0.15M – SW Flex Heavy Duty OBD/Bench/Boot Master
- FLS0.15S – SW Flex Heavy Duty OBD/Bench/Boot Slave
Newly added protocols:
OBD
- Ford Fomoco UTCU4 TC387 Read/Write/Checksum Calculation Maps
Writing Time: 1 minute
Reading Time: 2 minutes 30 seconds
