Table of Contents
Advertisement
2.0 Marine Diagnostics
IAC TEST WITH NO ENGINE RPM
THE IAC VALVE WILL
MOVE IN THE STEPS
YOU HAVE SELECTED
PRESS 1 TO CONTINUE
Press the 1 key.
ENGINE RPM
IAC DELTA %
PRESS MODE TO EXIT
Press the
key. As you step in a
positive direction you should hear a
buzzing sound as the IAC valve
opens. This sound may be difficult
to hear unless the IAC is removed
from the engine for testing pur-
poses only. Entering a negative
step (a value less than zero) may
have no affect on the valve since it's
already closed. Example: a DELTA
% of -20 will cause no change since
the valve is closed.
Press
To EXIT
78
1- Mercury Marine
0
10
5 SPECIAL FUNCTIONS
– continued
ENGINE ISN'T RUNNING
DURING THIS TEST
or
PRESS 1 TO CONTINUE
PRESS MODE TO CANCEL
VISUAL INSPECTION
OF ALL CONNECTORS.
CHECK ALL GROUND
CONNECTIONS.
CHECK ALL
COMPONENTS FOR
CORRECT SPECS. SEE
SYSTEM INFO.
CHECK HARNESS
CONTINUITY BETWEEN
ECM AND SUSPECT
COMPONENT.
Press the 1 key.
Press the
key.
Press the
key.
Reference Manual
Advertisement
Table of Contents
