Honda CBR650F Service Manual page 120

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DTC 54 (BANK ANGLE SENSOR)
CBR650F/FA: Bl/R
CB650F/FA: Bl/Y
Probable cause
• CBR650F/FA: Open circuit in Black/red or Black/
yellow wire between the engine stop switch and
bank angle sensor
• CB650F/FA: Open circuit in Black/yellow wire
between the engine stop switch and bank angle
sensor
• Open or short circuit in Black/blue wire between the
bank angle sensor and ECM
• Faulty bank angle sensor
• Faulty ECM
DTC 54-1 (BANK ANGLE SENSOR LOW VOLTAGE)
• Before starting the inspection, check for loose or
poor contact on the bank angle sensor 2P (Black)
and ECM 33P (Gray) connectors, and recheck the
DTC.
1. Bank Angle Sensor System Inspection
Erase the DTC (page 4-7).
Check the bank angle sensor with the MCS.
Is about 0 V indicated?
YES
NO
2. Bank Angle Sensor Signal Line Short Circuit
Inspection
Turn the ignition switch OFF.
Disconnect the bank angle sensor 2P (Black)
connector (page 4-39).
Check for continuity between the wire harness side
bank angle sensor 2P (Black) connector [1] terminal
and ground.
CONNECTION: Black/blue – Ground
Is there continuity?
YES
NO
From engine
stop switch
Bl/Y
BANK ANGLE SENSOR
– GO TO STEP 2.
– Intermittent failure
– Short circuit in the Black/blue wire
– GO TO STEP 3.
ECM
Bl/Bu
PGM-FI SYSTEM
[1]
Bl/Bu
4-31