Ground Circuits; Fuse; Emm Ground Tests; Additional Ground Tests - Evinrude E-TEC E40DRLSCB Service Manual

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 5, 7, and 8 of EMM J2
connector and the main harness ground.
•
Injector circuit grounds:
between terminal pins 14, 20, and 21 of the
EMM J1-B connector and the main harness
ground.
•
Sensor circuit grounds:
between terminal pins 26 and 27 of the EMM
J1-A connector and the appropriate sensor
ground connections. Refer to wiring diagrams.
1
2
1. Main harness ground
2. Ground stud (battery)

Additional Ground Tests

Check connections and continuity at the following
locations:
•
Starter solenoid terminal B and main harness
ground.
•
Trim and Tilt module ground at main harness
ground.
•
CPS connector pin 3 and main harness ground.

FUSE

The engine harness 12 V (B+) circuit is protected
by one automotive style 10 amp minifuse.
The fuse is located on the port side of the power-
head, in the flywheel cover.
2
Check continuity
1. Fuse
2. Spare fuse
IMPORTANT:
Check continuity
the result of faulty connections or accessories.
The 12 V accessory circuit (purple wire from ter-
minal "A" of key switch) is often used to power
accessories.
002292
ELECTRICAL AND IGNITION
GROUND CIRCUITS
Repeat failures of fuse could be
1
005004
7
123