Honda GOLDWING GL1800, Service Manual

Page: 575 / 757

IGNITION SYSTEM
18-6
Connect the peak voltage tester or adaptor probes
to the wire harness side connector terminal and
ground.
Shift the transmission into neutral.
Turn the ignition switch to “ON.”
Crank the engine with the starter motor and mea-
sure the ignition coil signal peak voltage.
• Although measured values are different for each
ignition coil, they are normal as long as voltage
is higher than the specified value.
If the peak voltage is lower than the standard value,
follow the checks described in the troubleshooting
chart on page 18-4.
IGNITION PULSE GENERATOR PEAK
VOLTAGE
• Check that the cylinder compression is normal
for each cylinder and the spark plug is installed
correctly in the cylinder head.
Connect the test harnesses set to the ECM connec-
tors (page 5-11).
Connect the peak voltage tester or adaptor probes
to the test pin box terminals.
Shift the transmission into neutral.
Turn the ignition switch to “ON.”
Crank the engine with the starter motor and mea-
sure “the ignition pulse generator peak voltage
If the voltage measured at the ECM connector is
abnormal, measure the peak voltage at the ignition
pulse generator connector.
Turn the ignition switch to “OFF.”
Remove the air cleaner housing (page 5-57).
CONNECTION:
No. 1 & 2 ignition coil:
Yellow/white (+) – Ground (–)
No. 3 & 4 ignition coil:
Yellow/blue (+) – Ground (–)
No. 5 & 6 ignition coil:
Yellow/red (+) – Ground (–)
Make sure the
engine stop switch
is turned to “ .”
PEAK VOLTAGE: 2.5 – 5.0 V
TOOLS:
Test harness set
07WMZ-MBGA000
CONNECTION: No. 41 (+) – No. 21 (–)
Make sure the
engine stop switch
is turned to “ .”
PEAK VOLTAGE: 0.7 V minimum
No. 21
No. 41
PEAK VOLTAGE ADAPTOR