Honda Transalp XL700V Manual page 172

2. ECT Sensor Input Voltage Inspection
Turn the ignition switch OFF.
Disconnect the ECT sensor 3P (Gray) connector.
Turn the ignition switch ON and engine stop
switch " ".
Measure the voltage at the wire side.
Connection: Pink/white (+) – Ground (–)
Is the voltage within 4.75 – 5.25 V?
YES – GO TO STEP 3.
NO – GO TO STEP 4.
3. ECT Sensor Resistance Inspection
Turn the ignition switch OFF.
Measure the resistance at the ECT sensor 3P
(Gray) connector.
Connection: Pink/white – Green/orange
STANDARD: 2.3 – 2.6 kΩ (20°C/68°F)
Is the resistance within 2.3 – 2.6 k Ω ?
No – Faulty ECT sensor
YES – GO TO STEP 4.
4. ECT Sensor Open Circuit Inspection
Check for continuity between the test harness
terminals and ECT sensor 3P (Gray) connector of
the wire harness side.
Connection: B13 – Pink/white
A18 – Green/orange
Is there continuity?
NO – • Open circuit in Pink/white wire
• Open circuit in Green/orange wire
YES – GO TO STEP 5.
5. ECT Sensor Short Circuit Inspection
Check for continuity between the ECT sensor 3P
(Gray) connector and ground.
Connection: Pink/white – Ground
Is there continuity?
YES – Short circuit in Pink/white wire
NO – Replace the ECM with a new one, and
recheck; for Key Registration Proce-
dures (page 21-4).
FUEL SYSTEM (PGM-FI)
3P CONNECTOR
(Wire side/female terminals)
P/W
G/O
ECT SENSOR (Sensor side/male terminal)
P/W
G/O
ECT SENSOR 3P (GRAY) CONNECTOR
(Wire side/female terminal)
ECT SENSOR 3P (GRAY) CONNECTOR
(Wire side/female terminal)
P/W
P/W
B13
A18
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