Honda INTERCEPTOR 2002 Service Manual page 571

IGNITION SYSTEM
TROUBLESHOOTING
• Inspect the fo llowing bef ore diagnosing the system.
- Faulty spark plug
- Loose spark plug cap or spark plug wire connection
-Water got into the direct ignition coil (shorting the ignition coil secondary voltage)
• If there is no spark at either cylinder, temporarily exchange the d irect ignition coil wit h the other go od one and perform
the spa rk test. If there is spark, the exchanged direct ig nitio n coil is fa ulty.
• "Initial voltage" of the ig nition primary coil is the battery voltage with the ignition switch turned to "ON" and the engine
stop swit ch turned to "RUN" (the engine is not cranked by the starter motor).
No spark at all plugs
~itioncoi l
primary volt-
age
Unusual condition
- -:-:--:-- : -
No initial voltage w ith ignition and
Probable cau se (Check in numerical order)
1.
Faulty engine stop switch.
2. An open circuit in Black/white wire between the direct
ignition coil and engine stop switch.
3. Loose or poor contact of the direct ignition
coil~ri­
mary wire terminal, or an open circuit in primary coil
(check at the ECM connector).
l-:---:-.-- --,--+--,,-,---:-- - : - -- - - - - - - - l- 4 ;..;. .--= Fa ; :..: u ::.; l ty ECM (when No. 1 t hrough 3 are normal).
Ignition pulse Peak voltage low
1.
The multimeter impedance is too low; below 10 MQ/
generator DCV.
engine stop switches t urned ON/
RUN (other electrical components
are normal)
18-4
No peak voltage.
2. Cranking speed is too slow (battery under charged).
3. The sampling timing of the tester and measured pulse
were not synchronized (System is normal if measured
voltage is over the standard voltage at least once).
4. Faulty ignition pulse generator (in case when above
No. 1 - 3 are normal).
1. Faulty peak voltage adaptor.
2. Faulty ignition pulse generator.
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