Honda CBR650RA Shop Manual page 233

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FUEL PUMP RELAY
CIRCUIT INSPECTION
For relay inspection (page 21-24).
Remove the fuel pump relay (page 21-24).
RELAY SWITCH/COIL POWER INPUT LINE
Measure the voltage between each fuel pump relay 4P
connector [1] terminal and ground.
CONNECTION: B (+) – Ground (–)
There should be battery voltage when the ignition
switch is turned ON with the engine stop switch " ".
If there is no voltage, check the following:
– White/black wire between the fuse/relay box and
fuel pump relay for open circuit
– FUEL (20 A) fuse
– Black/blue wire between the main relay and fuel
pump relay for open circuit
– Main relay and its circuit (page 4-85)
SIGNAL LINE
Check for continuity between the fuel pump relay 4P
connector [1] terminal and ground.
CONNECTION: C – Ground
There should be no continuity with the ignition switch
OFF.
If there is continuity, check for short circuit in the Brown/
black wire between the relay connector and ECM.
There should be continuity for a few seconds when the
ignition switch is turned ON with the engine stop switch
" ".
If there is no continuity, check for open circuit in the
Brown/black wire between the relay connector and
ECM.
SECONDARY AIR SUPPLY SYSTEM
SYSTEM INSPECTION
Start the engine and warm it up to normal operating
temperature.
Stop the engine.
Lift the fuel tank and support it (page 3-4).
Disconnect the air supply hose [1] from the air cleaner
lid.
Check that the hose joint (secondary air intake port) of
the air cleaner lid is clean and free of carbon deposits.
Check the PAIR check valve if the port is carbon fouled
(page 7-22).
D (+) – Ground (–)
FUEL SYSTEM
[1]
A
C
D (Bl/Bu)
[1]
A
C (Br/Bl)
B
D
[1]
B (W/Bl)
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