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Speedometer display
1. Check:
Speedometer display
Does not display → Measure the speed
sensor output voltage and pulses.
2. Measure:
Speed sensor output voltage and pulses
Out of specification → Repair or
replace.
Within specification → Replace the mul-
tifunction meter.
Speed sensor output voltage
(dependant on the paddle wheel
position):
Less than 400 mV/
More than 11.6 V
Output pulse:
2 pulses/one-full turn
Measurement steps:
Apply DC 12 volts to the natural color
three-pin connector (between the red/yel-
low and black/yellow leads).
Rotate the paddle wheel by hand and
measure the voltage between the black/
yellow and yellow leads.
NOTE:
As the paddle wheel is rotated, a square-
wave voltage signal a is produced.
Two pulses occur every time the paddle
wheel makes one-full turn.
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Tachometer display
1. Check:
Tachometer display
Does not display → Check the engine
speed using the “Engine monitor” of the
Yamaha Diagnostic System.
Replace the multifunction meter.
Hour meter display
1. Check:
Hour meter display
Does not display → Replace the multi-
function meter.
Voltage meter display
1. Check:
Voltage meter display
Does not display → Check the battery
voltage using the “Engine monitor” of
the Yamaha Diagnostic System.
Replace the multifunction meter.
Low oil pressure warning indicator
1. Check:
Low oil pressure warning indicator
Does not come on → Check the oil pres-
sure switch using the “Engine monitor”
of the Yamaha Diagnostic System.
Replace the multifunction meter.
Fuel level meter display and fuel warning
indicator
1. Check:
Fuel level meter display and fuel warn-
ing indicator
Do not display → Measure the fuel
sender resistance.
If the fuel sender resistance is within
specification, replace the multifunction
meter.
2. Measure:
Fuel sender resistance
Refer to “FUEL CONTROL SYSTEM”.
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Diagnostic display
1. Check:
Diagnostic display
Does not display → Replace the multi-
function meter.
Checking steps:
Start the engine.
Disconnect the coupler of a sensor (e.g,.
engine temperature sensor) that is nor-
mally displayed when a malfunction
occurs. Refer to “SELF-DIAGNOSIS” in
Chapter 9.
Check that the check engine warning
indicator comes on and that the buzzer
sounds.
Press the select switch 1 for 8 seconds
and check the error code indicated on the
multifunction meter.
1
INDICATION SYSTEM
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INTRODUCTION
INTRODUCTION
FEATURES
The newly developed Yamaha Diagnostic System provides quicker detection and analysis of engine
malfunctions.
By connecting your computer to the ECM (Electronic Control Module) of a watercraft using the com-
munication cable, this software can be used to display sensor data and data stored in the ECM on a
computer’s monitor.
If this software is run on Microsoft Windows
® 95, Windows 98, Windows Me, Windows 2000, or
Windows XP the information can be displayed in colorful graphics. Also, the software can be oper-
ated using either a mouse or a keyboard.
In addition, the data for the main functions (Diagnosis, Diagnosis record, Engine monitor, and Data
logger) can be saved on a disk or printed out.
Functions
1.Diagnosis:
Each sensor’s status and each ECM diagnosis code or item are displayed. This
enables you to find malfunctioning parts and controls quickly.
2.Diagnosis record:
Sensors that had been activated and ECM diagnostic codes that have been
recorded are displayed. This allows you to check the watercraft’s record of malfunctions.
3.Engine monitor:
Each sensor’s status and the ECM data are displayed. This enables you to
find malfunctioning parts quickly. In addition, the data displayed using the Engine Monitor func-
tion can be displayed in a graph.
4.Stationary test:
Operation tests can be performed with the engine off.
5.Active test:
Operation tests can be performed with the engine running.
6.Data logger:
From the data stored in the ECM, at least two items of 78 seconds of recorded
data are displayed on a graph. In addition, the operating time as compared to the engine speed
and the total operating time are displayed. This allows you to check the operating status of the
engine. For some models, you can also save the ECM record data in a file so that you can read
and display the graph later.
7.Some files:
Lets you select and run other applications while continuing to run the diagnostic
program.
CONTENTS
1. CD-ROM (software + instruction manual) (1)
2. Adapter (1)
3. Communication cable (1)
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INTRODUCTION
HARDWARE REQUIREMENTS
Make sure that your computer meets the following requirements before using this software.
Computer: IBM PC/AT compatible computer
Operating system: Microsoft Windows 95, Windows 98, Windows Me, Windows 2000, or Win-
dows XP (English version)
CPU:
Windows 95/98: i486X, 100 MHz or higher (Pentium 100 MHz or higher recommended)
Windows Me/2000: Pentium, 166 MHz or higher (Pentium 233 MHz or higher recommended)
Windows XP: Pentium, 300 MHz or higher (Pentium 500 MHz or higher recommended)
Memory:
Windows 95/98: 16 MB or more (32 MB or more recommended)
Windows Me: 32 MB or more (64 MB or more recommended)
Windows 2000: 64 MB or more (128 MB or more recommended)
Windows XP: 128 MB or more (256 MB or more recommended)
Hard disk free space: 20 MB or more (40 MB or more recommended)
Drive: CD-ROM drive
Display: VGA (640
× 480 pixels), (SVGA [800 × 600 pixels] or more recommended)
256 or more colors
Mouse: Compatible with the operating systems mentioned above
Communication port: RS232C (Dsub-9 pin) port, USB port
Printer: Compatible with the operating systems mentioned above
NOTE:
The amount of memory and the amount of free space on the hard disk differs depending on the
computer.
Using this software while there is not enough free space on the hard disk could cause errors and
result in insufficient memory.
This software will not run properly on some computers.
When starting up this program, do not start other software applications.
Do not use the screen saver function or the energy saving feature when using this program.
If the ECM is changed, restart the program.
Windows XP is a multiuser operating system, therefore, be sure to end this program if the login
user is changed.
The USB adapter cannot be used with Windows 95.
For operating instructions of the Yamaha Diagnostic System, refer to “Yamaha Diagnostic System
Instruction manual”.
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