Ground Circuits; Test Procedure; Fuse - BRP Evinrude E-Tec Series Service Manual

SYSTEM ANALYSIS

GROUND CIRCUITS

GROUND CIRCUITS
All ground circuits are essential to optimum out-
board performance. Make certain all ground con-
nections are clean and tight. Refer to wiring
diagrams to identify specific wiring details.

Test Procedure

Disconnect the battery cables at the battery.
Use an ohmmeter to check grounds at the appro-
priate pin locations of the EMM. Calibrate the
ohmmeter on the "high" ohms scale.
Connect the ohmmeter red lead to the ground
wire and the black meter lead main harness
ground. Resistance readings for all ground circuits
should be 0 Ω.
Main engine harness grounds to:
Injector circuits: check continuity to terminal
•
pins 9 and 27 of the EMM J2 connector and to
terminal pins 9, 10, 15, 16 and 22 of the EMM
J1-B connector.
Ignition circuit: check continuity to terminal pin
•
17, 18, 24 of the EMM J1-B connector.
Power supply / battery: check continuity to ter-
•
minal pins 4, 5, 14, 15, 16, 23, 24 and 25 of
EMM J2 connector.
Trim and Tilt module: check connection at main
•
ground terminal.
1
1. Main engine harness ground
2. Ground stud (battery)
116
Ignition (pins 17, 18 and 24 of the EMM J1-B
•
connector), injector and EMM battery grounds
on port and starboard cylinder head ground
screws.
1. Grounds, starboard cylinder head

FUSE

The engine harness 12 V (B+) circuit is protected
by one automotive style 10 amp minifuse. The
fuse is positioned on the starboard side of power-
head, and fastened to the capacitor.
2
1. Fuse
2. Spare fuse
2
005315
1
005316
1
005317