Honda SH300I 2006, Manual

Page: 134 / 511

FUEL SYSTEM (PGM-FI)
6-24
DTC 9-1 (IAT SENSOR LOW VOLTAGE)
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 0 V indicated?
YES – GO TO STEP 2.
NO – Intermittent failure
2. IAT Sensor Inspection
Turn the ignition switch "OFF".
Disconnect the sensor unit 5P (Black) connector.
Turn the ignition switch "ON".
Check the ECT sensor with the HDS pocket
tester.
Is about 0 V indicated?
YES – GO TO STEP 3.
NO – Faulty IAT sensor
3. IAT Sensor Output Line Short Circuit Inspection
Turn the ignition switch "OFF".
Disconnect the ECM 33P connector.
Check for continuity between the ECM 33P con-
nector of the wire harness side and ground with
sensor unit connector disconnected.
Is there continuity?
YES – Short circuit in the White/Blue wire
NO – Replace the ECM with a new one, and
recheck; refer to Key Registration Proce-
dures (page 23-4)
SENSOR UNIT 5P
(BLACK) CONNECTOR
CONNECTION: No. 14 (White/Blue) – Ground
STANDARD:
No continuity
TOOL:
Test probe
07ZAJ-RDJA110
33P CONNECTOR
(Wire side of female terminal)
W/Bu