Page 92 - REPOWER REFERENCE GUIDE (2020)

Engine Harness

An accessory relay kit connected to this location can provide up to 40 amps of accessory power. The key switch will power‑up
the relay in the accessory position and run position.

25048

Relay with power harness

Additional Relay Kit
An additional 40‑amp relay kit can be installed and connected to a junction box at the dash gauge connection location. This
location will power‑up with the key in the run position only.
The use of both relay kits will result in a maximum of 80 amps of key controlled power at the helm. This multiplies out on dual
engine and dual helm applications as long as the power wires to the helm are adequate to carry the total current demand.

25144

Accessory relay harness
CAN P (CAN 1) Connections (SmartCraft Only)

CAN P (CAN 1) data bus—Connection with a terminator resistor in place:
• The CAN P (CAN 1) data bus is terminated at each engine. Terminator resistors must be removed from the helm harness
or junction box and a jumper harness must be installed at the helm to connect the port and starboard CAN P (CAN 1) lines
together.
• If the boat is dual engine and dual helm, the terminator resistor at the lower helm is removed from the connector. The 2‑pin
link harness is installed at the upper station.

25149

2-pin link harness—CAN

Page 4D-12 © 2019 Mercury Marine 90-8M0149179 eng NOVEMBER 2018