User Manual:
MV3-E Hybrid Controls
Page 9
Throttle Wiring Harness
Installation of the Wiring Harness
A wire harness must be prepared for connection of the MV3-E control head to the engine TAC module. Every
boat is different and there may be several ways to route the harness. Inside the boat there is often a channel or
conduit used for wiring. This can also be used to route the wire harness for the MV3-E control.
When routing the wiring harness, care must be taken not to damage the cable insulation. If a harness is short,
replace it with a correct length harness. Don’t add a short harness to make up the required length. Run the
harness over the shortest and straightest possible path. Secure the harness every feet (0.6 m) with stainless
steel screws and mounting head ties or clamps. Excess harness length should be neatly coiled and secured with
nylon ties. The mounted harness should be as far as practical from high current wires or wiring runs and should
not be subjected to water, fuel, lubricants, or excess heat.
Preparation of the Control Head Wiring Harness
Measure from the control head mounting location along unobstructed wire runs to the engine module.
Round measurement to the next whole foot and add additional length if uncertain.
Prepare harness as shown in the diagram on the next page. It is recommended that conductors be stranded tinned
copper (UL 146 or equivalent), 18 AWG min. Colors shown are optional.
Connection of the Wiring Harness
NOTE: Always connect the wiring harness to the Control Head before connecting to the engine. The engine
connection should not be made until the control has been completely installed.
Ensure that the watertight seal is in place and connect the 6-pin connector from the completed harness assembly
into the rear of the potentiometer mounted on the control head mechanism. The connector should be fully seated
and latched for proper operation.
Installation
