Special Tools
CDS G3 Interface Kit 8M0138392
CDS G3 License Key, Interface, Adapter, and Harness
DMT 2004 Digital Multimeter 91‑892647A01
A
C O
M
m
A
V H z
mV
V
H z TEMP
m A
A
IG
IP
OFF
H z
TEMP
4516
Measures RPM on spark ignition (SI) engines, ohms, amperes, AC and DC
voltages; records maximums and minimums simultaneously, and accurately
reads in high RFI environments.
Spark Gap Tester 91‑850439T 1
Provides a visual indication of spark/coil efficiency.
Fuel Pressure Gauge Kit 91‑881833A03
Tests the fuel pump pressure; can be used to relieve fuel pressure.
Terminal Test Probe Kit Bosch P/N MM‑ 46523
Test probes adapt test meter leads to harness connections without damaging
harness terminals. May be used with Computer Diagnostic System (CDS).
Important Information
Propulsion Control Module (PCM) Overview
IMPORTANT: Refer also to Section 2B ‑ PCM 112 and Engine Control Overview.
The propulsion control module requires 9.5 VDC minimum to operate. If the PCM should fail, the engine will stop running.
The inputs to the PCM can be monitored and tested by using the computer diagnostic system (CDS G3).
CDS G3 Interface Kit
8M0138392
The PCM controls the following functions and components:
• Electronic shift control
• Electronic throttle control
• Main power relay
PCM 112 Important Information and Pinouts
Page 2A-2 © 2018 Mercury Marine 90-8M0146617 eng JULY 2018
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