Honda CRF450R 2009 Service Manual page 527

Aner'12:
Hang the fuel tank to the left side of the frame
(page 4-6).
Disconnect the alternatorfCKP sensor 6P (Black)
connector.
Connect the peak voltage tester or adaptor probes to
the CKP sensor side connector terminals.
Connection ;
No.1 CKP
se nsor;
Bluefyellow (+) - Greenfwhite (-)
No.2 CKP se nsor;
White/yellow
(+) -
Green (-)
In the same manner as at the ECM connector, measure
the peak voltage and compare it to the voltage
measured at the ECM connector.
If the peak voltage measured at the ECM connector
is abnormal and the one measured at the alternator/
CKP sensor connector is normal, the Blue/yellow or
White/yellow or Greenlwhite wire has an open or
short circuit, or loose connection.
If both peak voltages are abnormal, follow the
checks described in the troubleshooting chart (page
17-6).
If the CKP sensor is faulty, replace the alternator stator/
CKP sensor assembly (page 12-9).
e
ELECTRICAL SYSTEM
6P CONNECTOR
(sensor sideffemafe terminal)
No.2 CKP LINE
G
WfY
BW'(
GNV
No.1 CKP LINE
17·11