Sakai SV400D-2, Shop Manual

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9-005
ELECTRICAL SYSTEM TROUBLESHOOTING
5) Solenoid valve inspection (Check ON/OFF operation by sound.)
Conduct without running the engine. (If you run the engine, you cannot hear the sound of
operation.)
Sound heard
: The electrical system is normal.
No sound heard : Check with a tester.
Continuity
: (1) Turn the starter switch OFF temporarily, disconnect the connector and
check for continuity between the harness-side grounding terminal (color:
black) and vehicle body ground. (If there is none, replace the harness.)
(2) Is the solenoid valve coil burnt?
(Turn the starter switch OFF, disconnect the connector and check the
resistance between the solenoid valve terminal.)
Voltage : With the connector disconnected, turn the starter switch ON and check
whether 24 V (or 12 V) exists between the harness-side connector and
vehicle body ground.
If YES : Replace the valve.
If NO : Investigate and identify the location (section) to which 24 V (or 12 V)
reaches. Then replace the harness or take other action.
6) Harness check
If an incomplete disconnection inside the harness is suspected, wiggle (move) the harness
during the relay inspection and solenoid valve inspection to see whether the relay (valve)
operates incorrectly.
Check for burned areas of the harness.
Turn the starter switch OFF, disconnect the connector and check the continuity, referring to the
circuit diagram and wiring coloring.
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