Step 2. Installation of Master Module
Mount the Master Module under the dash normally on the bulkhead accessible behind and right
of the passenger seat in a dry location. It can also be installed on the left side of driver’s
bulkhead. The wires from under the dash pod can be easily fed across the bulkhead.
Route servo motor power cable from Master Module to servo motor and connect. (Use tie wraps
to keep cable away from moving parts ). Make sure the tips on the plug are facing up towards
the top of the Master Module box. A wire snake will be helpful.
Step 3. Mount Dash Display
Remove the right speedometer (if boat has two speedometers) or remove tachometer and install
the In Dash PerfectPass Display and connect into Master Module. (If there is a speedo tube
on back, it should be clamped).
Step 4. Connect Power Wire
Depending on the boat and model, there are a number of ways to connect to a switched (12
volt) power source.
1. On boats with traditional analogue gauges and posts on back of tachometer, there is a 12
volt (+) post often marked (IGN) which is an easy connection to the purple wire. The
black wire end can attach to the ground (-) post marked (GND).
2. On boats with Borg Warner gauges with no posts, attach the PerfectPass purple power
wire to the purple wire leading to the ignition terminal. The black wire can be securely
grounded to the grounding bar or other suitable ground location.
3. 2000 - 2005 Nautiques – There is a main wiring harness and large white plug located
behind the dash pod. Connected to this plug is a purple wire carrying the switched 12
volts and a black wire which is a suitable ground connection.
4. 2002 – 2005 MasterCraft – Power, RPM and Paddle Wheel speed is all located in the
special plug and play harness supplied with each system. The MasterCraft supplied white
connector is on every boat specifically for PerfectPass. You may have to remove the
driver’s foot panel to locate this connector in the boat’s wiring harness.
5. 2005 Malibu – There is a plug & play harness for speed, RPM and Power.
Step 5. RPM Cable Installation
This connection will depend on the brand and year of boat you own.
(1) Standard Installation (Older boats and boats with traditional Analogue gauges with Posts
on back)
The Gray wire with ring terminal can be easily attached to the “SEND” post on back of
tachometer. This Gray wires picks up the raw engine rpm from this post. The Black wire
ring terminal can be attached to any suitable ground, including the ground post on the
tachometer. (If there is not a post, connect to the solid gray wire coming from the
tachometer).
(2) 2002 - 2005 MasterCraft – The custom wiring harness supplied by PerfectPass allows for
plug & play for RPM, Power & Paddle Wheel.
(3) 1998- 2004 Malibu (Borg Warner Gauge System)
In behind the dash pod on most models, Malibu has left a Gray (RPM) wire that
terminates at a large female spade connector. If you can locate this, you can simply attach
the Gray wire on the rpm sensor cable to this connector.
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