MerCruiser PCM-555 EFI
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Figure 13 MerCruiser PCM-555 & ECM-555
is section describes TechMate Pro scan tool functions related to marine
engines equipped with MerCruiser PCM-555 / ECM-555 fuel injection systems.
PCM-555 fuel injection systems were rst introduced on a limited number of
MerCruiser engines in October of 2000.
Connecting to the PCM-555 EFI System
e TechMate Pro scan tool provides an extensive set of diagnostic and support
functions for troubleshooting engines equipped with the Mercury/MerCruiser
PCM-555 engine control system. Connection and operation of the tool is simple
and straight forward.
1) Locate the engine’s 4 pin diagnostic connector (DLC). e exact location of
this connector is specied in the engine manufacturer’s service manual and
may vary depending upon the engine type. Please be aware 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 #94006
is required for this application as shown below.
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.
PCM-555 Adapter
Rinda Tech P/N 94006
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