Honda CBR125R, Руководство пользователя

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FUEL SYSTEM (PGM-FI)
5-35
3. ECT Sensor Resistance Inspection
Turn the ignition switch OFF.
Measure the resistance at the ECT sensor termi-
nals.
Is the resistance within 2.3 – 2.6 k
Ω
(20
°
C/68
°
F)?
YES – GO TO STEP 4.
NO – Faulty ECT sensor
4. ECT Sensor Open Circuit Inspection
Connect the ECM test harness to ECM 33P con-
nector (page 5-13).
Check the continuities between the ECM test har-
ness and ECT 3P sensor connector of the wire
side.
Are there continuities?
YES – GO TO STEP 5.
NO – • Open circuit in Yellow/blue wire
• Open circuit in Green/orange wire
5. ECT Sensor Output Voltage Inspection
Connect the ECT sensor 3P connector.
Turn the ignition switch ON (and engine stop
switch " ": CM and U type).
Measure the voltage at the ECM test harness ter-
minals.
Is the voltage within 2.7 – 3.1 V (20
°
C/68
°
F)?
YES – • Loose or poor contact on the ECM
connector
• Intermittent failure
NO – Replace the ECM with a known good
one, and recheck.
Connection: Yellow/blue – Green/orange
Standard:
2.3 – 2.6 k
Ω
(20
°
C/68
°
F)
ECT SENSOR (Sensor side/male terminals)
G/O
Y/Bu
Connection: 24 – Yellow/blue
4 – Green/orange
G/O
Y/Bu
(4)
(24)
ECT SENSOR 3P CONNECTOR
(Wire side/female terminals)
Connection: 24 (+) – 4 (–)
Standard:
2.7 – 3.1 V (20
°
C/68
°
F)
(24) (4)