Page 139 - 2019 SHOP MANUAL CRF1000/A/D

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PGM-FI SYSTEM
DTC 54 (BANK ANGLE SENSOR)
ECM/PCM

From FI relay

Bl/W

R/Bu

BANK ANGLE SENSOR

Probable cause
• Open circuit in the Black/white wire between the FI
relay and bank angle sensor
• Open or short circuit in the Red/blue wire between
the bank angle sensor and ECM/PCM
• Faulty bank angle sensor
• Faulty ECM/PCM
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/PCM 33P (Gray) connectors, and recheck
the DTC.
1. Bank Angle Sensor System Inspection
Erase the DTC (page 4-6).
Check the bank angle sensor with the MCS.
Is about 0 V indicated?
YES – GO TO STEP 2.
NO – Intermittent failure
2. Bank Angle Sensor Input Voltage Inspection
Turn the ignition switch OFF.
Disconnect the bank angle sensor 2P (Black) [1]
connector (page 22-4).
Turn the ignition switch ON.
Measure the voltage between the wire harness side
2P (Black) connector [1] and ground.
Connection: Black/white (+) – Ground (–) Bl/W

Is there battery voltage?
YES – GO TO STEP 3.
NO – Open circuit in the Black/white wire

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