Honda SH300I 2006, Manual

Page: 130 / 511

FUEL SYSTEM (PGM-FI)
6-20
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 – GO TO STEP 2.
NO – • Intermittent failure
• Loose or poor contact on the ECT
sensor 3P (Gray) connector
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.
Turn the ignition switch ON.
Check the ECT sensor with the HDS pocket
tester.
Is about 0 V indicated?
YES – Inspect the ECT sensor (page 6-74).
NO – GO TO STEP 3.
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.
Are there continuity?
YES – Replace the ECM with new one, and
recheck; refer to Key Registration Proce-
dures (page 23-4)
NO – • Open circuit in Pink/White wire
• Open circuit in Green/Orange wire
Connection: Pink/White – Green/Orange
JUMPER WIRE
3P (Gray) CONNECTOR
(Wire side of female terminals)
P/W
G/O
Connection: Pink/White – No. 24 (Pink/White)
Green/Orange – No. 4
(Green/Orange)
TOOL:
Test probe
07ZAJ-RDJA110
3P (Gray) CONNECTOR
(Wire side of female terminals)
33P CONNECTOR
(Wire side of female terminals)
P/W
G/O