Honda CBR650RA Shop Manual page 189

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MAIN RELAY
CIRCUIT INSPECTION
(ED, IIED, IIIED, IVED, FO, IIFO, KO,
IIKO models)
For relay inspection (page 21-24).
Remove the main relay (page 21-24).
RELAY COIL POWER INPUT LINE
Measure the voltage between the main relay 4P
connector [1] terminal and ground.
CONNECTION: D (+) – Ground (–)
There should be battery voltage when the ignition
switch is turned ON.
If there is no voltage, check the following:
– Yellow/red wire between the relay connector and
main relay diode
– Main relay diode (page 4-87)
– White/yellow wire between the main relay diode and
fuse/relay box
– ENG STOP fuse (7.5 A)
RELAY SWITCH POWER INPUT LINE
Measure the voltage between the main relay terminal of
the relay box [1] and ground.
CONNECTION: A (+) – Ground (–)
There should be battery voltage at all times.
If there is no voltage, check the following:
– Red/yellow wire between the main relay and fuse/
relay box for open circuit
– FI fuse (10 A)
GROUND LINE
Check for continuity between the main relay terminal of
the relay box [1] and ground.
CONNECTION: C – Ground
There should be continuity at all times.
If there is no continuity, check for open circuit in the
Green wire.
PGM-FI SYSTEM
[1]
A
B
C
D (Y/R)
A (R/Y)
[1]
B
D C
[1]
A
B
D
C (G)
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