BRP EVINRUDE E-TEC BE225HGXABA, Manual

Page: 95 / 356

95
Electrical and Ignition
Ground Circuits
6
Ground Circuits
All ground circuits are essential to reliable out-
board performance. Make sure all ground connec-
tions are clean and tight. Refer to wiring diagrams
for specific wiring details.
EMM Ground Tests
Disconnect the battery cables at the battery.
Use an ohmmeter to check continuity of ground
circuits. Calibrate the ohmmeter on the high ohms
scale. Resistance readings for all ground circuits
should be 0
Ω
.
•
System/power supply grounds: Check continu-
ity between terminal pins 4, 5, 9, 14, 15, 16, 23,
24, 25 and 27 of
EMM J2 connector and the
main harness ground.
•
Injector circuit grounds: Check continuity
between terminal pins 9 and 27 of the
EMM J2
connector and the main harness ground; and
between terminal pins 9, 10, 15, 16 and 22 of
the
EMM J1-B connector and the main harness
ground.
•
Sensor circuit grounds: Check continuity
between terminal pins 4 and 11 of the
EMM
J1-A connector and the appropriate sensor
ground connections. Refer to wiring diagrams.
Additional Ground Tests
Check connections and continuity at the following
locations:
•
Trim and Tilt module ground at main ground ter-
minal.
•
Check continuity between ground terminals at
port cylinder head ground screw and the main
harness ground.
1. Main engine harness ground
2. Ground stud (battery)
004183
1
2
1. Ground, port cylinder head 007172
1