8HP51 / 8HP76
This integration applies specifically to BMW 3rd Generation 8HP51 and 8HP76 transmissions.
These models are not currently included in the Race+ support matrix.
¶ BETA support v1.0.137
¶ Features
- All models supported - 51/76 - RWD/AWD
- Full control & all drive modes (D/S/M)
- ECO Pro/Comfort/Sport/Sport+ modes on regular transmission software
- DriveLogic 1-3 modes on M3 transmission software
- 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 immobilizer must be unlocked or bypassed using a suitable third-party solution before use.
¶ 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.
Non-OEM installations require delayed transmission power shutdown.
¶ Time Delay Relay
Adaptation values are saved after vehicle shutdown 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 is 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.
It is connected to CAN1 and can be used for diagnostics and compatible third-party transmission flashing tools.
¶ Inputs and Outputs
See the Software section for configurable CANTCU inputs and outputs.
¶ Pinouts and Wiring
¶ Connector Pinouts
¶ Wiring Diagrams
