Honda SH300I 2006, Manual

Page: 135 / 511

FUEL SYSTEM (PGM-FI)
6-25
DTC 9-2 (IAT SENSOR HIGH VOLTAGE)
• Before starting the inspection, check for loose or
poor contact on the sensor unit 5P (Black) con-
nector and recheck the DTC.
1. IAT Sensor System Inspection
Turn the ignition switch ON and engine stop
switch "
".
Check the IAT 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 sensor
unit connector
2. IAT Sensor Output Voltage Inspection
Turn the ignition switch "OFF".
Disconnect the sensor unit 5P (Black) connector.
Connect the sensor unit terminals with a jumper
wire.
Turn the ignition switch ON.
Check the IAT sensor with the HDS pocket tester.
Is about 0 V indicated?
YES – Replace the sensor unit with a new one,
and recheck. (Faulty IAT sensor)
NO – GO TO STEP 3.
3. IAT Sensor Output Line Open Circuit Inspection
Turn the ignition switch "OFF".
Disconnect the jumper wire.
Disconnect the ECM 33P connector.
Check for continuity between the sensor unit 5P
(Black) connector of the wire harness side and
ECM 33P connector of the wire harness side.
Is there continuity?
YES – GO TO STEP 4.
NO – Open circuit in the White/Blue wire
Connection: White/Blue – Green/orange
5P (Black) CONNECTOR
(Wire side of female terminal)
W/Bu
G/O
CONNECTION: White/Blue – No. 14 (White/Blue)
STANDARD:
Continuity
TOOL:
Test probe
07ZAJ-RDJA110
5P (Black) CONNECTOR
(Wire side of female terminals)
5P (Black) CONNECTOR
(Wire side of female terminal)
W/Bu
33P CONNECTOR
(Wire side of female terminal)