MerCruiser SCAN TOOL User manual

SCAN TOOL
The fastest and easiest way to troubleshoot
Marine Electronic Fuel Injection Systems
USER’S GUIDE
Rinda Technologies, Inc.
Version 5
MerCruiser

MerCruiser
SCAN TOOL
USER’S GUIDE
Rinda Technologies Inc.
4563 N. Elston Ave.
Chicago, IL 60630 USA
Tel: [phone]
Fax: [phone]
Web: www.rinda.com
Serial Number: ________________________________

Limited Warranty
To the original purchaser only, Rinda Technologies, Inc. warrants the supplied scan tool hardware to be
free from defects in materials and workmanship under normal use for a period of 1 year from date of
purchase as evidenced by a copy of the sales receipt. Rinda Technologies, Inc. makes no other express
warranties on the hardware products. The purchaser’s sole remedy in the event of a breach of warranty is
expressly limited to repair of the defective scan tool hardware. Repair parts and replacement hardware
products will be provided on an exchange basis and will be either reconditioned or new. All replaced parts
become property of Rinda Technologies, Inc. This limited warranty does not cover damage to the products
resulting from misuse, accident, disaster, abuse, negligence, improper maintenance, or modification and/or
repair of the hardware product other than by Rinda Technologies, Inc.
The software components in the scan tool are believed to be accurate. Rinda Technologies, Inc. does not
warrant that the operation of the software will be uninterrupted or error free. Further, Rinda Technologies,
Inc. does not warrant or guarantee the use of, or the results of the use of, the software in terms of correctness,
accuracy, reliability, currentness, or otherwise.
Limitation of Liability
Neither Rinda Technologies, Inc. nor its authorized dealer shall be liable for any defect, indirect, incidental,
special, or consequential damages, whether in an action in contract or tort (including negligence and strict
liability), such as, but not limited to, loss of anticipated profits or benefits resulting from the use of this scan
tool and its software or any breach of any warranty, even if Rinda Technologies or its authorized dealer has
been advised of the possibility of such damages. In no event will Rinda Technologies, Inc. or its authorized
dealer’s liability exceed the price paid for the product.
The information presented in this manual is believed to be accurate. Responsibility for errors, omission of
information, or consequences resulting from the use of this information cannot be assumed by Rinda
Technologies, Inc. Rinda Technologies, Inc. retains all rights to make changes to specifications at any time
without notice.
Reproduction of this manual, in whole or in part, is forbidden
without the express written permission of Rinda Technologies Inc.
Manual contents including photographs Copyright ©) 1997-2008 Rinda Technologies Inc.
All rights reserved worldwide.
Volvo Penta is a registered trademark of Volvo Penta Corp. MerCruiser, Thunderbolt V, D-Tronic and
Mercury are registered trademarks of Brunswick Corp. GM is a registered trademark of General Motors
Corp. Indmar is a registered trademark of Indmar Engine Co. Pleasurecraft and Crusader are registered
trademarks of Pleasurecraft Engine Group. All other trademarks are properties of their respective holders.

Table of Contents
Safety Precautions .....................2
Overview ...........................3
Scan Tool Key Functions ..................4
Setup & Operation......................5
Function Flowchart .....................6
Marine Engines Supported by the Scan Tool .......9
Engines with GM MEFI.................12
Volvo Penta EGC EFI .................25
Pleasurecraft / Crusader ECM-07 & ECM-08 .....32
Indmar GCP EFI ....................33
OBD-M compliant EFI .................34
MerCruiser PCM-555 / ECM-555 EFI .........35
MerCruiser PCM-09 (Visteon) EFI ...........49
MerCruiser Thunderbolt V Ignition ..........50
MerCruiser 2.8L / 4.2L D-Tronic Diesel .......58
MerCruiser 7.3L D-Tronic Diesel ...........59
Mercury 3.0L Carbureted Outboard..........60
Mercury 3.0L EFI Outboard ..............62
Mercury Hi Perf 2.0 / 2.5 L EFI Outboard .......63
Injector Test Mode .....................64
Support Information.....................66
Scan Tool Adapters .....................67
Page 1

Safety Precautions
Before attempting to use the MerCruiser Scan Tool please
read and observe the following safety precautions:
·Always refer to and follow the engine and boat manufacturer’s safety
and service procedures to prevent personal injury and equipment
damage.
·Never connect or disconnect the scan tool with the vehicle’s ignition
turned ON or while the engine is running.
·Always stay clear of any moving or movable engine components
when connecting and using the scan tool.
·When working near marine batteries never use any device that is
capable of producing a spark, high temperature or open flame.
Marine batteries contain sulfuric acid and produce highly explosive
gasses that may ignite. To prevent serious injury always observe this
precaution along with the safety precautions provided by the engine,
boat and battery manufacturers.
·Always test and service a running engine in a well ventilated area.
·Always wear approved eye protection.
IMPORTANT
·This scan tool is a sensitive electronic instrument. Handle the tool
with extreme care.
·DO NOT subject the scan tool to excessive water spray or expose it
to rain. The scan tool is water resistant but not water proof.
·DO NOT leave the scan tool in direct sunlight for extended periods of
time or subject it to extreme temperatures (hot or cold).
·ALWAYS store the scan tool in its protective carrying case (# 94015)
when not in use. If you do not have a carrying case, store the scanner
in its original packaging.
Page 2

Overview
What is the MerCruiser Scan Tool?
The MerCruiser Scan Tool is a multi-purpose diagnostic device that functions
as a scanner and a fuel injector t ester. The scanner supports current
MerCruiser electronic engine control systems and is software ungradable for
future applications.
In addition to the MerCruiser Scan Tool’s diagnostic functions, the tool also
contains a programmable fuel injector tester that is compatible with most
multi-port marine fuel injectors.
The MerCruiser Scan Tool automatically tailors its menu choices and
available functions based upon the type of ECM it detects on the engine. A
flowchart of the basic menu choices is detailed on the Function Flowchart
pages. Some functions and features may vary between similar ECM types.
This variation is due to the way that a particular ECM is programmed at the
factory. Some ECMs may have certain features enabled or disabled which
will cause the MerCruiser scan tool to automatically adjust its menu and data
display choices.
To Begin:
1. Review the Key Functions, Setup and Operation, as well as the Function
Flowchart information.
2. Proceed to the section pertaining to the specific system type being diagnosed.
3. Follow the procedures in that section.
Page 3
Figure 1 MerCruiser Scan Tool

Scan Tool Key Functions
Page 4
Scrolls to next menu choice or used to increase a value
Scrolls to previous menu choice or used to decrease a value
Used to choose or activate menu options
Exits the current menu or test mode
Stops information that is scrolling across the display
Displays scan tool setup options
Used to activate outputs or pulse injectors depending upon test mode
Provides information on menu selections or engine parameters
KEY FUNCTIONS

Setup and Operation
Setup
The setup function is accessible while in any of the scan tool’s menus or while in the
data scanning mode. Pressing the SETUP key causes the scanner to suspend its
current mode of operation and enter a special setup menu. The setup menu contains
items that allow you to tailor various functions of the scan tool.
These functions are as follows:
English/Metric
Mode
Causes data related to pressure, temperature and velocity to be
displayed in English or Metric units.
GPH Scaling Affects the display of GM MEFI 1 & 2 fuel flow readings. Use
Scale Factory #1 for most engine’s. Use Scale Factor #2 when
working on older MerCruiser engines.
MAP Scaling Use 2 ATM setting only when working on supercharged engines.
Save Settings Causes adjustments made to English/Metric Units, GPH Scaling,
Screen Contrast, and Fuel Injector time settings to be stored in the
scanner’s non-volatile memory. These settings are permanently
retained and will automatically be recalled each time the tool is
turned ON. The settings remain in effect until changed.
Screen Adjust Allows the scanner’s display contrast to be adjusted. Please note
that the display’s readability is affected by both ambient lighting
conditions and temperature. Use the screen adjustment feature as
necessary to produce a suitable amount of contrast for your
viewing purposes.
Press the NO key to exit the Setup mode.
Operation
The sand tkeys are used to access all menu choices throughout the operation of
the scan tool.
The YES key is used to select or activate the currently displayed menu item.
The HELP key provides information on current menu choices or items.
After the scan tool displays its initial opening messages, use the sand tkeys to
access one of the following operating modes, then press the YES key to select it.
Marine EFI
Merc D-Tronic
Thunderbolt V
Mercury Outboard
Injector Test
Support Information
Page 5

Function Flowchart
Page 6
Connect Tool
Start Here

Function Flowchart
Page 7

Function Flowchart
Page 8
MerCruiser
2001 - Up
PCM-555 and ECM-555
continued from page 6

Page 9
Function Flowchart
Volvo Penta EGC
Pleasurecraft / Crusader ECM-07 & Up
Indmar (GCP ECM)
continued from page 6

Function Flowchart
Page 10
MerCruiser Visteon ECM
(catalyst equipped engines)
and
Generic OBD-M systems
continued from page 6

Engines Supported by the Scan Tool
Engine / EFI System Support
The MerCruiser Scan Tool supports a variety of electronic engine control systems as
summarized below. Please refer to the appropriate section of this manual based on the
type of engine control system being diagnosed.
·All marine engines equipped with GM MEFI (MEFI 1 thru MEFI 5)
·Volvo Penta engines equipped with EGC EFI
·Pleasurecraft / Crusader engines with ECM-07 & ECM-08 EFI
·Indmar engine models equipped with GCP EFI
·MerCruiser engines equipped with PCM-555 and ECM-555 EFI
·MerCruiser engines equipped with Visteon EFI
·OBD-M compliant sterndrive / inboard gasoline marine engines.
·MerCruiser engines with Thunderbolt V Ignition
·MerCruiser 2.8L and 4.2L D-Tronic Diesel Engines
·MerCruiser 7.3L D-Tronic Diesel Engines
·Mercury 3.0L Carbureted Outboard
·Mercury 3.0L EFI Outboard
·Mercury Hi-Performance 2.0L / 2.5L EFI Outboard
Page 11

GM Marine EFI
Scan Tool GM EFI Compatibility
At the date of publication of this manual, the MerCruiser Scan Tool is
compatible with 1993 and newer GM Marine EFI systems being used by a
variety of marine engine manufacturers. These manufacturers include Volvo
Penta, MerCruiser, Indmar, Crusader, Flagship, Marine Power, Pleasurecraft,
and KEM. Please note that other manufacturers may also apply based upon
new product releases and MerCruiser Scan Tool software updates.
Gasoline ECMs Supported
The Marine EFI menu choice should be selected in order to service all 1993 and newer
gasoline engines produced by Volvo Penta that are equipped with Electronic Fuel
Injection. This is the menu choice you will use most often.
Upon selecting the Marine EFI menu choice, the scan tool will establish
communication with the engine’s Electronic Control Module (ECM) and
automatically determine the type of module that is present.
There are, at the time of this writing, five base GM marine system types that are
supported by the MerCruiser scan tool. Some of the system types shown below also
have revisions that were released after their initial introductions which incorporated
refinements. For example, MEFI-4 also had two follow-up revisions called MEFI-4a
and MEFI-4b. The scan tool currently supports all known GM MEFI revisions from
MEFI-1 through MEFI-5c.
Supported GM EFI system types:
·MEFI 1 (introduced in 1993)
·MEFI 2 (introduced in 1996)
·MEFI 3 (introduced in 1998)
·MEFI 4 (introduced in 2001)
·MEFI 5 (introduced in 2005)
Page 12

GM Marine EFI
Connecting to GM MEFI-1 thru MEFI-4 systems
(For connecting to GM MEFI-5 CAN based systems see page 15)
1) Locate the engine’s 10 pin marine diagnostic connector (DLC). The location of
this connector is specified in the engine manufacturer’s service manual. Please be
aware that the connector may have a protective cap attached to it. Shown below
are photos depicting common locations of the GM diagnostic connector.
Note: Some manufacturers place a protective cover over the GM diagnostic
connector which must be removed in order to connect the scan tool to the
engine. Be sure to replace the connector cover, if used, in order to protect the
diagnostic connector’s electrical terminals from water and corrosion.
Page 13
Figure 2 GM EFI Diagnostic Connector

GM Marine EFI
2) With the engine’s ignition switch in the OFF position, plug the scan tool’s
communication cable into the diagnostic connector. Scan tool adapter #94005 is
required for this application.
3) Once the tool is connected, turn the ignition switch ON and start the engine if
necessary. If the engine will not start, simply leave the ignition switch ON and
proceed.
4) After the scan tool displays its initial opening messages, use the sand tkeys to
select the “Marine EFI” operating mode, then press the YES key to select it.
Connecting Twin Engine Systems
In a twin engine configuration, the ECM modules (one on each engine) may be
electronically linked together. This link is usually installed by the boat manufacturer
and provides the ability to diagnose both engines from a single diagnostic connector.
With the exception of setting the engine’s base timing, all scanner functions are
available for accessing both engines from one diagnostic plug. In order for the
scanner to function properly in this mode, the ignition keys should be ON for BOTH
engines. It is not necessary to have the engines running, but both ignition systems
should be turned on (Key On/Engine OFF).
For twin installations that are NOT electronically linked together, you must connect
to and service each engine individually. In this situation, each engine in the twin
installation will respond as Engine #1.
Engine #1 / Engine #2 Selection (MEFI ECMs Only)
This menu allows you to select which engine you would like to service. For a single
engine system, choose Engine #1.
For a twin engine system where the engines are electronically linked together, choose
Engine #1 or Engine #2.
If you are diagnosing a twin engine system that is NOT electronically linked
together, you must have the scanner attached to the diagnostic connector on
the engine you wish to service and choose Engine #1.
Remember, both ignition systems should be ON when troubleshooting an
electronically linked twin engine installation.
Page 14

GM Marine EFI
Connecting to GM MEFI-5 systems
1) Locate the engine’s 6 pin CAN diagnostic connector. This connector may also be
referred to as the OBD-M connector (On-Board Diagnostics-Marine). The
location of this connector is specified in the engine manufacturer’s service
manual. Please note that the connector may have a protective cap attached to it.
2) With the engine’s ignition switch in the OFF position, plug the scan tool’s
communication cable into the diagnostic connector. Scan tool adapter #94027
(CAN Adapter) is required for this application as shown in Figure 3 above.
3) Once the tool is connected, turn the ignition switch ON and start the engine if
necessary. If the engine will not start, simply leave the ignition switch ON and
proceed.
4) After the scan tool displays its initial opening messages, use the sand tkeys to
select the “Marine EFI” operating mode, then press the YES key to select it.
Page 15
Figure 3 Scan Tool CAN Network Adapter #94027

GM Marine EFI
Obtaining Data
After selecting the “Marine EFI” function the scan tool will attempt to communicate
with the engine’s fuel injection computer and automatically identify it. After an
identification is made, you will be presented with several menu choices. To obtain
diagnostic data and system trouble codes, select the “ECM Data” function. This
menu choice causes the scanner to begin reading information from the ECM module.
The scanner will prompt for your input as follows:
1) After choosing the ECM data function, the scanner may prompt you to choose a
data list(MEFI-1 thru MEFI-4 systems only). Select Data List #1 or Data List #0.
Data List #1 contains diagnostic service information and will usually be of
primary interest to you.
Data List #0 contains a smaller number of information items and is intended for
electronic instrumentation purposes.
2) The scanner will now attempt to communicate with the engine’s computer and
automatically determine what version of ECM is installed on the engine.
3) Next, the scanner will provide you with the number of Operating Hours the
engine has logged. Once displayed, the scanner will interrogate the ECM and
obtain any stored Fault Codes. If any codes are detected, they will be displayed
along with their descriptions. Options will be displayed allowing you to Review
as well as Erase the stored codes.
4) The tool will now enter its “Scanner” mode and allow you to select and display a
wide variety of engine sensor and operating information. The displayed data is
updated several times per second. Use the sand tkeys to scroll through the
available information. Use the HELP key to access information on the currently
displayed engine parameter. Use the NO key to exit the “Scanner” mode and
return to the main menu.
Page 16