Nissan R34 GT-T (Manual) to Haltech uC-10 Adapter Loom

This adapter loom is designed specifically for connecting a manual transmission Nissan R34 GT-T to a Haltech uC-10, when used with an aftermarket plug-in ECU or an ECU with a plug-in adapter.

Important: Some inputs are received via CAN. The aftermarket ECU must support transmitting these signals to the Haltech uC-10. The ECU must already have these inputs available or be appropriately wired to receive them.

Functions Retained by the Haltech uC-10

The following functions are supported, provided the vehicle was originally equipped with them and they remain in their original operating condition.

Electrical & Convenience

• Alternator charging and warning

• Rear demister

• Interior light (factory switch-off delay is no longer retained, and the light no longer illuminates automatically when the ignition key is removed)

• Park / illumination input

• Indicators

• Door ajar input

Warning Lights & Safety

• Traction control light

• Slip indicator

• Low oil pressure switch input

• ABS warning light input

• Brake warning light input (low fluid level / handbrake)

• High beam input

• Rear fog light input

• Seatbelt warning input

Engine & Vehicle Data

• Fuel level input

• Engine speed input (via CAN)

• Vehicle speed signal (via CAN)*

• Malfunction indicator light / check engine light (via CAN)

• Engine coolant temperature (via CAN)

Aftermarket plug-in ECUs and ECU patch looms are wired to receive vehicle speed as a digital input, in the same manner as the original factory ECU.

Original Equipment Functions No Longer Retained

The following factory functions are not supported with this adapter loom:

• OE engine oil pressure sensor input: The factory sensor suffers from poor accuracy due to its limited signal range, as well as reliability concerns. If accurate oil pressure monitoring is required, we recommend installing a quality aftermarket sensor. This can be wired directly to the uC-10 I/O expansion connector, or to the ECU with the data transmitted to the uC-10 via CAN.

• HICAS warning light input: The factory HICAS system is commonly deleted due to potential stability and reliability concerns.

• SRS warning light input: Installation of an aftermarket steering wheel permanently removes the driver's airbag system.

• OE remote keyless entry

• OE central locking

• OE automatic transmission warning lights and gear indicator: Not supported.