Mercury MerCruiser Service Manual page 560

Color Diagrams
6.2L Mechanical Wiring Diagram Non-DTS
1 - MIL light
2 - OBD‑M fuses—2‑amp fuse across C and D, 20‑amp
fuse across A and B
3 - Starboard precatalyst wideband O2 sensor
4 - Starboard postcatalyst O2 sensor
5 - Port precatalyst wideband O2 sensor
6 - Fuel injector 6
7 - Fuel injector 8
8 - Fuel injector 4
9 - Fuel injector 3
10 - Fuel injector 2
11 - Fuel injector 1
12 - Fuel injector 7
13 - Fuel injector 5
14 - Fuel pump
15 - Fuel pump relay
16 - Engine fuses—20‑amp fuse across A and B, C and
D, and E and F—15‑amp fuse across G and H, and
in spare
17 - CAN P and CAN H resistors
18 - PCM clean power
19 - Analog tachometer signal
20 - To the 50‑amp circuit breaker
21 - 14‑pin connector
22 - Starter
23 - Starter relay
24 - Main relay
25 - Starter fuse
26 - Starter fuse to the 50‑amp circuit breaker
27 - CAN resistor
28 - Alternator excite circuit
29 - Camshaft position sensor
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30 - Electronic throttle control (ETC)
31 - Crankshaft position sensor
32 - Chassis ground
33 - Trim up relay
34 - MerCathode
35 - Trim down relay
36 - Transom harness
37 - Digital oil pressure
38 - Paddle wheel and fuel tanks
39 - Digital sea pump pressure
40 - Throttle demand
41 - Coil pack 3
42 - Coil pack 4
43 - Coil pack 2
44 - Coil pack 1
45 - Port water exhaust temperature
46 - Oil lube
47 - Diagnostic
48 - Port postcatalyst O2 sensor
49 - Neutral switch
50 - Electronic shift control (ESC)
51 - O2 sensor fuses—10‑amp fuses in all
52 - Starboard exhaust temperature sensor
53 - PCM ground
54 - J1939 diagnostic
55 - Temperature and manifold absolute pressure
(TMAP)
56 - PCM C
57 - PCM B
58 - PCM A
90-8M0099748 eng DECEMBER 2015