Honda CBR650F Service Manual page 121

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PGM-FI SYSTEM
3. Bank Angle Sensor Signal Line Open Circuit
Inspection
Disconnect the ECM 33P (Gray) connector (page 4-
35).
Check for continuity between the wire harness side
bank angle sensor 2P (Black) connector [1] and
ECM 33P (Gray) connector [2] terminals.
TOOL:
Test probe
CONNECTION: Black/blue – Black/blue
Is there continuity?
YES
NO
4. Bank Angle Sensor Input Voltage Inspection
Temporarily install the ECM to the wire harness by
connecting the 33P (Black) connector.
Turn the ignition switch ON with the engine stop
switch " ".
Measure the voltage between the wire harness side
bank angle sensor 2P (Black) connector [1] terminal
and ground.
CONNECTION: Black/white (+) – Ground (–)
Is there battery voltage?
YES
NO
5. Bank Angle Sensor Inspection
Check the bank angle sensor (page 4-40).
Is the bank angle sensor normal?
YES
NO
4-32
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– GO TO STEP 4.
– Open circuit in the Black/blue wire
– GO TO STEP 5.
– Open circuit in Black/white wire
– Replace the ECM with a known good one,
and recheck.
– Faulty bank angle sensor
[1]
Bl/Bu
Bl/Bu
[1]
Bl/W
(Terminal side of the wire harness)
[2]