Honda SH300 2006 Manual page 130

FUEL SYSTEM (PGM-FI)
DTC 7-2 (ECT SENSOR HIGH VOLT-
AGE)
• Before starting the inspection, check for loose or
poor contact on the ECT sensor 3P (Gray) con-
nector and recheck the DTC.
1. ECT Sensor System Inspection
Turn the ignition switch "ON" and engine stop
switch "
Check the ECT sensor with the HDS pocket
tester.
Is about 5 V indicated?
YES
NO
2. ECT Sensor Inspection
Turn the ignition switch OFF.
Disconnect the ECT sensor 3P (Gray) connector.
Connect the ECT sensor terminals with a jumper
wire.
Connection: Pink/White – Green/Orange
Turn the ignition switch ON.
Check the ECT sensor with the HDS pocket
tester.
Is about 0 V indicated?
YES
NO
3. ECT Sensor Output/ground Line Inspection
Turn the ignition switch OFF.
Disconnect the jumper wire.
Disconnect the ECM 33P connector.
Check the continuity between the ECT sensor
connector of the wire harness side and ECM con-
nector.
Connection: Pink/White – No. 24 (Pink/White)
TOOL:
Test probe
Are there continuity?
YES
NO
6-20
".
– GO TO STEP 2.
– • Intermittent failure
• Loose or poor contact on the ECT
sensor 3P (Gray) connector
– Inspect the ECT sensor (page 6-74).
– GO TO STEP 3.
Green/Orange – No. 4
(Green/Orange)
07ZAJ-RDJA110
– Replace the ECM with new one, and
recheck; refer to Key Registration Proce-
dures (page 23-4)
– • Open circuit in Pink/White wire
• Open circuit in Green/Orange wire
P/W
JUMPER WIRE
3P (Gray) CONNECTOR
(Wire side of female terminals)
3P (Gray) CONNECTOR
(Wire side of female terminals)
G/O
P/W
33P CONNECTOR
(Wire side of female terminals)
G/O