Honda CBR650F Service Manual page 123

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PGM-FI SYSTEM
Measure the voltage between the main wire harness
side 12P (Black) connector [1] terminal and ground.
CONNECTION: White (+) – ground (–)
Does the voltage repeat 0 V to 8 V or more at
intervals of 5 seconds?
YES
NO
3. Combination
Output Voltage Inspection
Turn the ignition switch OFF.
Remove the SCS connector.
Connect the front sub harness 12P (Black)
connector.
Disconnect the ECM 33P (Gray) connector (page 4-
35).
Push and hold combination meter buttons SEL [1]
and SET [2], turn the ignition switch ON with the
engine stop switch " ".
Wait for more than 10 seconds and release the
buttons.
• The
communication diagnostic output mode. The
open circuit in the combination meter can be
checked in this mode.
Measure the voltage between the wire harness side
ECM 33P (Gray) connector [1] terminal and ground.
TOOL:
Test probe
CONNECTION: White (+) – Ground (–)
Does the voltage repeat 0 V to 8 V or more at
intervals of 5 seconds?
YES
NO
4. Combination Meter Back-up Voltage Inspection
Turn the ignition switch OFF.
Disconnect the combination meter 16P (Gray)
connector (page 21-7).
Connect the front sub harness 12P (Black)
connector (page 2-6) (CB650F/FA only).
Measure the voltage between the combination
meter 16P (Gray) connector [1] terminal and
ground.
CONNECTION: Red/white (+) – Ground (–)
Is there battery voltage?
YES
NO
4-34
– GO TO STEP 3.
– Replace the ECM with a known good one,
and recheck.
Meter Serial Communication
combination meter
07ZAJ-RDJA110
– GO TO STEP 4.
– Replace the combination meter with a
known good one, and recheck.
– Intermittent failure
– Open circuit in Red/white wire between the
fuse box 2 and combination meter
[1]
[1]
enters the
[1]
R/W
W
[2]
W
[1]