Ignition System; Troubleshooting - Suzuki DL650 Service Manual

ELECTRICAL SYSTEM 8-23
IGNITION SYSTEM
@ CKP sensor @
ECM
@
Wave form arrangement circuit
@
Power source circuit
@
CPU
@
TP sensor ECT sensor
@
Gear position switch
@
Engine stop switch
@ I
lgnition coil #1
Spark plug #I
@
lgnition coil #2
@
Spark plug #2
@
Side-stand relay
@
Fuse
@
lgnition switch
@
Battery
TROUBLESHOOTING
No spark or poor spark
Make sure the engine stop switch is in the "RUN" position and side-stand is in up-right position. Make sure
the fuse is not blown and the battery is fully-charged before diagnosing.
Step1
1) Check the ignition system couplers for poor connections.
Is there connection in the ignition switch couplers?
Step 2
1) Measure the battery voltage between input lead wire (OIG and BIW) at the ECM with the ignition switch
in the "ON" position.
Is the voltage OK?
YES
NO
l
YES
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GO
to ~ t e ~ 3 .
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Go to Step2.
lmoro~er cou~ler connection.
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1-
Faulty ignition switch.
Faulty turn signallside-stand relay.
Faulty engine stop switch.
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I
Broken wire harness or poor connection of related circuit couplers.
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