Page 99 - Installation Manual - GenII DTS

Clean Power

2. Diesel: Diesel applications use a 14‑pin T‑harness with a 2‑pin connector to connect this harness. On these applications,
the harness supplies power to the junction box circuit.

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Architecture

2-pin harness connected at the engine
e a - 14‑pin data harness
b
b - 2‑pin clean power harness connector
a c - 2‑pin clean power harness
d - Battery
c
d e - Negative engine battery cable
f - Positive engine battery cable

f
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2-pin harness connected at a T-harness (diesel only)
a - 14‑pin data harness
b b - Clean power harness
c - Clean power T‑harness (2‑pin)

a c
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4‑Pin Clean Power Harness with Dual Fuses
Overview

The 4‑pin, dual‑fuse clean power harness provides two power circuits to the engine and helm electronics. Although connected
to the engine cranking battery, these circuits are separate from the main power cables that connect the starting battery to the
starter and alternator, to reduce electrical noise. One circuit is fused at 7.5 amps (red/white and black/white wires) while the
other is fused at 5 amps (red and black wires).
The dual‑fuse clean power harness connects directly to the engine cranking battery using two ring terminals. A 4‑pin connector
at the other end of the harness connects to the clean power T‑harness or to the thrust vector module (TVM), depending on the
application. Refer to the appropriate architecture diagram.

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90-8M0161677 eng MARCH 2021 © 2021 Mercury Marine Page 3C-3