104
SYSTEM ANALYSIS
ELECTRICAL CONNECTIONS
ELECTRICAL
CONNECTIONS
Inspect wiring and electrical connections. Disas-
semble and clean all corroded connections.
Replace damaged wiring, connectors, or termi-
nals. Repair any shorted electrical circuits. Refer
to wiring diagrams and reference charts to identify
specific wiring details.
IMPORTANT:
The key to effective troubleshoot-
ing is confirming the proper operation of each
engine system. Causes of electrical failures may
be difficult to isolate. Check the integrity of all con-
nections, grounds, and wiring prior to replacing a
suspect component.
Inspect the condition and positioning of the follow-
ing components:
•
Engine Management Module (
EMM
): wiring to
EMM
connectors and pins
•
Stator: connections to
EMM
, wiring to connec-
tors, and connector pins
•
Engine wiring harness and connectors
Stator to
EMM
Connectors
J1-A Connector
002025
Pin
No.
Description of Circuit
Wire Color
1.
Stator winding (yellow)
Yellow/White
2.
Stator winding (yellow)
Yellow
3.
Stator winding (orange)
Orange/White
4.
Stator winding (orange)
Orange
5.
Stator winding (brown)
Brown/White
6.
Stator winding (brown)
Brown
001875
Pin
No.
Description of Circuit
Wire Color
1.
Oil Pressure switch
Tan/White
2.
Diagnostic connector
Red
3.
Diagnostic connector
White
4.
vacant
5.
vacant
6.
Crankshaft position sensor (CPS)
Yellow
7.
CPS ground (digital)
White
8.
Bootstrap connector (programming)
Blk/Orange
9.
Stop circuit
Blk/Yellow
10.
Throttle position sensor (TPS) 5 V
Red
11.
vacant
12.
vacant
13.
vacant
14.
vacant
15.
12 V to
EMM
(fused)
Red/Purple
16.
Tachometer
Gray
17.
SystemCheck
, CHECK ENGINE light
Tan/Orange
18. TPS analog ground
Green
19. Engine temperature sensor (water)
Pink/Black
20. Air temperature sensor
Pink/Blue
21. vacant
22. vacant
23. vacant
24.
SystemCheck
, NO OIL light
Tan/Yellow
25.
SystemCheck
WATER TEMP light
Tan
26. TPS ground (analog)
Black
27. Engine temp. sensor ground (analog)
Black
28. Air temperature sensor ground (analog) Black
29. Neutral switch (shift linkage)
Yellow/Red
30. vacant
31. vacant
32. vacant
33. vacant
34. vacant
Summary of Contents for E-tec 75 HP
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Page 233: ...233 POWERHEAD POWERHEAD VIEWS 10 POWERHEAD VIEWS Port Short Block Starboard Short Block ...
Page 234: ...234 POWERHEAD POWERHEAD VIEWS Port Dressed Powerhead Starboard Dressed Powerhead ...
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Page 236: ...236 POWERHEAD POWERHEAD VIEWS Rear ...
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