Ignition System; Troubleshooting - Suzuki DL650K5 Service Manual

IGNITION SYSTEM

1 CKP sensor 2 ECM
6 TP sensor 7 ECT sensor
A Spark plug #1 B Ignition coil #2
F Ignition switch G 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?
YES Go to Step2.
NO Improper coupler connection.
Step 2
1) Measure the battery voltage between input lead wire (O/G and B/W) at the ECM with the ignition switch
in the "ON" position.
Is the voltage OK?
YES Go to Step3.
• Faulty ignition switch.
• Faulty turn signal/side-stand relay.
NO
• Faulty engine stop switch.
• Broken wire harness or poor connection of related circuit couplers.
O/G
3 Wave form arrangement circuit 4 Power source circuit
8 Gear position switch
C Spark plug #2
ELECTRICAL SYSTEM 8-23
O/W
O/W
W/Bl
B/O
B
9 Engine stop switch
D Side-stand relay
O/B
O/Y
(10 A)
O
B/R
(30 A)
5 CPU
0 Ignition coil #1
E Fuse