Race+ support planned
Race+ is the preferred 8HP software where supported. Support for 8HP50, 8HP75 and 8HP95 is planned.
Until Race+ support is released for these models, use the installation method on this page.
¶ Initial support v1.0.126
¶ Features
- All models supported - 50/75/95 - RWD/AWD
- Full control & all drive modes (D/S/M)
- ECO Pro/Comfort/Sport/Sport+ modes
- xHP Transmission flash possible
- Custom gear shifter can be used (Suitable CAN-bus or Digital Inputs)
- Shift paddle control by CAN-bus or Digital Inputs
- Wheel speed can be simulated from Output Shaft Speed sensor (OSS) and sent out on CAN
¶ Sensor Requirements
- Brake Switch (ECU or CANTCU)
- DBW Throttle (recommended)
The transmission needs to be virginized/unlocked prior to use. Unlocking is done using CANTCU Flasher after installation.
¶ Installation
The CANTCU Controller needs to be installed in a dry place e.g. inside the car, or inside the ECU box if present. The USB-B port on top of the controller should remain accessible for configuration.
Wiring must be done according to the diagrams below.
¶ Power Supply
Power input to CANTCU can be connected together with the 8HP transmission power input. Recommended fuse size for the combined connection is 15 A.
WUP (Wake-Up) of the 8HP and shifter requires +12 V only while ignition is on. This should be controlled by the CANTCU WUP output and connected to all required units.
This installation requires delayed transmission power shutdown on non-OEM installations.
¶ Time Delay Relay
Adaptation values are saved after WUP switches off while main transmission power remains active.
Main power should remain available for approximately 45-60 seconds after shutdown.
OEM installations may already provide this behaviour. Standalone and custom installations normally require a time-delay relay.
¶ CAN-Bus
CAN1 and CAN2 are used for transmission and optional shifter communication.
CAN3 is normally used for vehicle/ECU communication.
Use twisted-pair wiring for CAN.
CAN1 and CAN2 have built-in 120 ohm termination resistors. CAN3 does not.
¶ OBD Connector
A separate transmission OBD connector is required for this installation.
It is connected to CAN1 and can be used for BMW diagnostics and compatible third-party transmission flashing tools such as xHP.
¶ Inputs and Outputs
See the Software section for configurable CANTCU inputs and outputs.
¶ Pinouts and Wiring
¶ Connector Pinouts
¶ Wiring Diagrams
