Honda CBR650RA Shop Manual page 125

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2. ECT Sensor Output Line Short Circuit Inspection
Check for continuity between the wire harness side
ECT sensor 2P (Blue) connector [1] and ground.
CONNECTION: Pink/yellow – Ground
Is there continuity?
YES
NO
3. ECT
Inspection
Check for continuity between the wire harness side
ECT sensor 2P (Blue) connector [1] and ECM 33P
(Gray) connector [2].
CONNECTION: Green/orange – Green/orange
Is there continuity?
YES
NO
4. ECT Sensor Inspection
Replace the ECT sensor with a new one.
Erase the DTC (page 4-9).
Turn the ignition switch ON and wait for 10 seconds.
Check the DTC with GST or MCS.
Is same DTC indicated?
YES
NO
– Short circuit in the Pink/yellow wire
– GO TO STEP 3.
Sensor Ground Line
– GO TO STEP 4.
– Open circuit in the Green/orange wire
– Replace the ECM with a new one, and
recheck.
– Faulty original ECT sensor
[1]
(Terminal side of the wire harness)
Open Circuit
G/O
[1]
PGM-FI SYSTEM
P/Y
G/O
(Terminal side of the wire harness)
[2]
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