Mercury V8 300 User Manual

Trim Switches and Sensor ‑ Mechanical
a - PCM connector A
b - PCM connector B
c - PCM connector C
d - Trim harness connector
e - Trim position sensor connector
f - Cowl tilt switch connector
g - Clean power harness connector
h - 14‑pin data harness connector
Connector Pin Wire Color Function PCM
65763
B
A
C
A Red/black 12 V clean power (+) *
B Green/white Trim down relay control BM4
C Light blue/white Trim up relay control AA3
65697
4
3
1
2
1 N/A Not used –
2 Black/green Sensor ground C (–) CE3
3 Yellow Trim position sensor signal BC2
4 Purple/black Sensor power C (+) CE4
65695
1
2
3
1 Red/black 12 V clean power (+) *
2 Green/white Trim down (from switch) CC3
3 Light blue/white Trim up (from switch) CC2
Clean power harness B Black Clean power ground (–) –
*Clean power is in input to the PCM at pin CA4, not shown.
S115
S114A
S107
S112
S114B
GRN/WHT
YEL
BLK
RED/BLK
LT BLU/WHT
GRN/WHT
PPL/BLK
BLK/GRN
LT BLU/WHT
GRN/WHT
BLK
RED/BLK
LT BLU/WHT
LT BLU/WHT
GRN/WHT
GRN/WHT
RED/BLK
RED/BLK
YEL
PPL/BLK
BLK/GRN
LT BLU/WHT
B
A
1
2
3
2
3
4
1
A
B
C
H4
C2
C3
E3
E4
A1
C2
M4
A1
A1
A3
H4
A
B
C
D
E
F
G
H
J
K
L
M
N
P
A B
1 2
3
N
K
J
H
G
F
E
C
B
A
D
M
L
P
A
B
C
D
E
F
G
H
1
2
3
4
A
B
C
D
E
F
G
H
A B
C
D E F G H
J
K
AB
C
DEFGH
J
K
1
3
2
4
L
M
L
M
A
B
C
D
E
F
G
H
1
2
3
4
A
B
C
D
E
F
G
H
M
A
4
1
A
H
1
4
H
A
4
1
1 2
3
AB
A
B
1
2
3
H
J
K
M
C
F
P
65915
a
b
c
d
e
f
g
h
Conventional Midsection (CMS) Power Trim
Page 6C-16 © 2018 Mercury Marine 90-8M0146617 eng JULY 2018

Mercury V8 300 Specifications

General

Horsepower	300 HP
Displacement	4.6 L
Full Throttle RPM Range	5200-6000 RPM
Fuel Induction System	Electronic Fuel Injection (EFI)
Gear Ratio	1.75:1
Starting	Electric
Shaft Length	20 in, 25 in, 30 in
Warranty	3-Year Limited Warranty
Engine Type	V8
Fuel Type	87 Octane
Bore x Stroke	92 mm x 86 mm