Honda CBR650RA Shop Manual page 201

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CKP SENSOR PEAK VOLTAGE
(MA, IIMA, IN, TH, IITH, U, IIU, BR, IIBR
models)
• Check the cylinder compression and check that the
spark plugs are installed correctly in the cylinder
head.
Disconnect the ECM 33P (Black) and 33P (Gray)
connectors (page 4-76).
Connect the peak voltage adaptor [1] or Imrie tester
probes to the ECM 33P (Black) [2] and 33P (Gray) [3]
connector terminals of the wire harness side, using the
test probes (page 4-10).
TOOL:
Test probe (2 required)
CONNECTION: Blue/yellow (+) – Green (–)
Shift the transmission into neutral and turn the ignition
switch ON with the engine stop switch " ".
Crank the engine with the starter motor and measure
the CKP sensor peak voltage.
PEAK VOLTAGE: 0.7 V minimum
If the peak voltage measured at the ECM 33P
connectors is abnormal, measure the peak voltage at
the CKP sensor connector.
Turn the ignition switch OFF.
Disconnect the CKP sensor 2P (Black) connector [1].
Connect the peak voltage adaptor or Imrie tester
probes to the 2P (Black) connector terminals of the
CKP sensor side.
CONNECTION: Yellow (+) – White/yellow (–)
In the same manner as at the ECM 33P connectors,
measure the peak voltage and compare it to the voltage
measured at the ECM 33P connectors.
• If the peak voltage measured at the ECM is
abnormal and the one measured at the CKP sensor
is normal, the wire harness has an open or short
circuit or loose connection.
• If the peak voltage of the CKP sensor side is lower
than standard value, follow the checks described in
the troubleshooting table (page 5-3).
For CKP sensor replacement (page 5-11).
Install the removed parts in the reverse order of
removal.
07ZAJ-RDJA110
[3]
[1]
IGNITION SYSTEM
G
Bu/Y
[1]
[2]
5-9