Honda CBR650RA Shop Manual page 143

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2. ECM Serial Line Output Voltage Inspection
Turn the ignition switch OFF.
Disconnect the combination meter 20P (Gray)
connector (page 21-5).
Connect the ECM 33P (Black) connector (page 4-
76).
Short the DLC terminals using the special tool (page
4-9).
Rotate and hold the throttle grip to the fully open
position.
Turn the ignition switch ON while holding the throttle
grip at the fully open position over 10 seconds.
The ECM enters the communication diagnostic
mode.
Measure the voltage at the combination meter 20P
(Gray) connector [1] of the wire harness side and
ground.
CONNECTION:
CBR650RA: White (+) – Ground (–)
CB650RA:
Does the voltage repeat 0 V to 8 V or more at
intervals of 5 seconds?
YES
NO
DTC P062F
Probable cause:
• Faulty ECM
Symptom/Fail-safe function:
• Hard to start
• Does not hold the self-diagnosis data
– The MIL does not come on (the DTC can be
readout and erased only by GST or MCS).
Diagnostic procedure:
1. Replace the ECM with a new one.
2. Erase the DTC (page 4-9).
3. Turn the ignition switch ON and wait for 10 seconds.
4. Check the DTC with GST or MCS.
5. If the same DTC is not indicated, faulty original
ECM.
Red/blue (+) – Ground (–)
– Inspect the combination meter (page 21-
6).
– Replace the ECM with a known good one,
and recheck.
PGM-FI SYSTEM
[1]
CBR650RA: W
CB650RA: R/Bu
(Terminal side of the wire harness)
4-39