Race+ uses one common installation method for all supported ZF 8HP transmissions, simplifying the wiring and installation process. Existing legacy-wired installations are also fully compatible with Race+.
The same wiring method is used regardless of the transmission's original vehicle manufacturer.
¶ Transmission Wiring
All supported Race+ 8HP transmissions use the following connections:
| Transmission Pin | Function | Connect to |
|---|---|---|
| 5 | CAN High | CANTCU CAN1 High |
| 6 | CAN Low | CANTCU CAN1 Low |
| 9 | Wake-Up | CANTCU WUP |
| 13 | +12 V | Fused +12 V supply |
| 14 | Ground | Ground |
¶ CAN
Connect transmission pins 5 and 6 to CANTCU CAN1.
- Pin 5 → CAN1 High
- Pin 6 → CAN1 Low
Use twisted-pair wire for the CAN connection.
Only CAN1 is required for transmission communication with Race+. CAN2 is not required.
¶ Wake-Up
Connect transmission pin 9 to the CANTCU WUP output.
WUP provides the transmission with a +12 V wake-up signal while the system is active.
¶ Power
Connect transmission pin 13 to a suitable fused +12 V supply and pin 14 to Ground.
CANTCU and the transmission should use the same switched power supply, preferably powered already in the Accessory (ACC) position if available.
A time-delay relay is not required with Race+. Transmission adaptations are saved automatically during normal operation.
¶ Diagnostics
A separate transmission OBD connector is not required with Race+. Diagnostics are handled through CANTCU.
Transmission programming, backup and setup are handled using the 8HP TCM Tool.
¶ Shifter
Shifters are connected normally according to the selected shifter. Depending on the shifter, communication is connected to CAN1 or CAN3.
See Supported Shifters for supported models, wiring and pinouts.
¶ Prepare the Transmission
Before first use, program the transmission with Race+ using the 8HP TCM Tool.
For a stock transmission, create a backup before installing Race+.
¶ Configuration
After Race+ has been installed and the transmission is connected, configure it through the CANTCU Configurator.
See Race+ Configuration for the available settings.