Systemcheck Circuit Tests - Evinrude E-Tec 40 HP Service Manual

SystemCheck CIRCUIT
TESTS
Make sure the SystemCheck engine monitor can
warn the opera tor during a "NO OIL," "W ATER
TEMP" or "HOT ," "CHECK ENGINE," or "LOW
OIL" condition. Check the condition of the warning
system and associated wiring
Test the engine monitor regularly and anytime you
suspect an alert situation has been missed.
The instrument harness must be connected to the
outboard be fore perfo rming the following test s.
Refer to the Engine Wiring diag ram and the
MWS Instrument Wiring diagram in the back of
this manual.
Use jumper wires ma de with the
IMPORTANT:
appropriate terminals to test the warning circuits.
Gauge Self-Test Check
Turn the key switch to ON with the outboard NOT
running. The g auge warning lig hts for NO OIL,
WATER TEMP, CHECK ENGINE, and LOW OIL
must a ll ligh t at once, th en turn off in se quence,
and the warnin g hor n mu st sound for one-half
second.
If the gauge lig hts do not turn on, turn the key
switch OFF. Disconnect the gauge 8-pin connec-
tor from the back of the gauge an d turn the ke y
switch ON. T est for b attery volt age be tween
instrument harne ss termi nal 1 (purple wire) an d
terminal 2 (black wire).
and connections.
1. Test adapter(s)
2. Connector, SystemCheck gauge
If battery voltage is present, replace the gauge.
•
If there is no battery voltage, check that 12 V is
•
present at terminal "B" of the key switch. Check
condition of the instrument harness, key switch,
and connections.
If the lights worked, but the warn ing horn did n ot
sound fo r one-h alf seco nd, turn the key switch
OFF. Disconn ect the warning horn 2-pin connec-
tor. Substitute a known good warning h orn. Turn
the key switch ON.
If the substitute horn beeps, the original horn is
•
defective and must be replaced.
If the subst itute horn does not beep, check for
•
battery vo ltage between instrument harness 2-
42811 pin con nector, terminal 2 (purple wire) an
ground with the key switch ON. Also, check th e
tan/blue wire for continuity between pin 8 of the
8-pin connector a nd pin 1 of the 2-pin connec-
tor.
If batt ery vo ltage is present at the purple wire
•
and the t an/blue wire has cont inuity bet ween
ELECTRICAL AND IGNITION

SystemCheck CIRCUIT TESTS

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1
42761
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d
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