PCM001 — INSTRUMENTATION / PANEL
Malfunction Indicator Lamp (MIL)
Check Engine lamp on dash panel
70
Buzzer
Audio warning device on panel
71
Coolant Temp Sender / TACH
PWM signal feeds tach and coolant gauge
73
Panel Power / VBAT
Battery voltage feed to panel
45
Oil Pressure Sender
PWM signal to oil pressure gauge
103
Starter Circuit
Starter relay control (GOV2/DIG2)
81
CAN Bus (+/-)
High-speed comms to boat electronics
25
29
PCM002 — POWER, FUSES & BATTERY
ECM Fuse 20A
Main battery feed to ECM
58
Ignition Feed
Switched 12V from ignition relay
45
Fuel Pump Relay Fuse 20A
Feeds relay contact power (not ECM pin — upstream)
Upstream of ECM
Diagnostic Connector Fuse 15A
Powers OBD/Diacom diagnostic port
Upstream fuse
PCM003 / PCM004 — ECM GROUNDS
ECM Ground 1
Main ECM chassis ground — Ground Stud
65
ECM Ground 2
Secondary ECM chassis ground
108
Sensor Ground
Common reference ground for all sensors (S114)
5
PCM004 — RELAYS, FUEL PUMP & IGNITION
Fuel Pump Relay Control
PWM14 — ECM energizes relay coil → 12V to all injectors.
72
Ignition Relay Control
ECM output to ignition relay coil
115
Starter Relay Control
Neutral safety switch in circuit
Via relay coil
Low Pressure Fuel Pump
Powered by fuel pump relay output
Relay output
IGN 1 Fuse 20A
Feeds fuel pump relay & injector high-side supply
60
IGN 2 Fuse 20A
Secondary ignition power feed
90
PCM007 — FUEL INJECTORS (HIGH-SIDE & LOW-SIDE) ⚡
Injector — Cylinder 1
LH Bank · LH Bank · Cylinder 1
61 HS
91 LS
Injector — Cylinder 2
RH Bank · OK
66 HS
96 LS
Injector — Cylinder 3
LH Bank · OK
69 HS
99 LS
Injector — Cylinder 4
RH Bank · RH Bank · Cylinder 4
67 HS
97 LS
Injector — Cylinder 5
LH Bank · OK
63 HS
93 LS
Injector — Cylinder 6
RH Bank · RH Bank · Cylinder 6
68 HS
98 LS
Injector — Cylinder 7
LH Bank · LH Bank · Cylinder 7
64 HS
94 LS
Injector — Cylinder 8
RH Bank · OK
62 HS
92 LS
High Pressure Fuel Pump
HP pump driver — feeds GDI fuel rail at 2000+ PSI
113
Fuel Pressure Sensor
Monitors high-pressure fuel rail
4 5V
5 GND
54 SIG
PCM009 — THROTTLE BODY (DBW)
Throttle Body Motor (+/-)
Drive-by-wire actuator control
105+
104-
TCP Sensor 1
Throttle position signal 1
37
TCP Sensor 2
Throttle position signal 2 (redundant)
35
Idle Validation Switch
Neutral lock / idle confirmation
59
5V Reference 1 & 2
Sensor excitation voltage outputs
42
36
PCM010 — CRANK & CAM SENSORS
Crankshaft Position (CKP)
Primary timing reference for injection & spark
21+
22-
Camshaft Position (CMP)
Cam phase for sequential injection timing
23+
24-
Cam Phaser Solenoid
Variable valve timing — PWM6 control
112
Oil Control Solenoid
VVT oil pressure valve — PWM1
102
PCM011 — OXYGEN SENSORS (UEGO & HEGO)
UEGO Sensor 1 — Pre-Cat
Wideband O2, port side — air/fuel ratio
49
46
47
48
UEGO Sensor 2 — Pre-Cat Stbd
Wideband O2, starboard — air/fuel ratio
50
53
100
101
HEGO Sensor 3 — Port Post-Cat
Post-catalyst O2, port — catalyst monitor
107
111
HEGO Sensor 4 — Stbd Post-Cat
Post-catalyst O2, stbd — catalyst monitor
106
114