a - Electronic throttle control (throttle position sensor)
b - Oil temperature sensor
c - Oil pressure sensor
d - Block water pressure sensor
e - Camshaft position sensor
f - Exhaust gas temperature sensor
g - Water‑in‑fuel sensor
h - Intake air temperature sensor
i - Shift actuator (shift position sensor)
j - Engine coolant temperature sensor
k - Propulsion control module connector C
l - Propulsion control module connector B
Circuit Description
PCM sensor power A (XDRP1) supplies 5 volts to the sensors identified on the preceding diagram. On DTS models, the purple
and yellow wire from pin F1 of PCM connector C connects to splice S101, which feeds all five identified sensors.
PCM sensor ground A (XDRG1) connects all ten sensors to ground through the PCM (pin E1 of connector C). The black and
orange ground circuit incorporates three splices (100A, 100B, and 100C).
Sensors
90-8M0146617 eng JULY 2018 © 2018 Mercury Marine Page 5A-7
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