Honda Transalp XL700V Manual page 158

DTC 9-2 (IAT SENSOR HIGH VOLTAGE)
• Before starting the inspection, check for loose or
poor contact on the IAT 2P (Gray) sensor connec-
tor and ECM 33P connectors, then recheck the
DTC.
1. IAT Sensor System Inspection
Turn the ignition switch ON and engine stop
switch " ".
Check the IAT sensor with the HDS.
Is about 5 V indicated?
YES – GO TO STEP 2.
NO – Intermittent failure
2. IAT Sensor Inspection
Turn the ignition switch OFF.
Disconnect the IAT sensor 2P (Gray) connector.
Connect the IAT sensor 2P (Gray) connector at
the wire harness side with a jumper wire.
Connection: Gray/blue – Green/orange
Turn the ignition switch ON and engine stop
switch " ".
Check the IAT sensor with the HDS.
Is about 0 V indicated?
YES – Faulty IAT sensor
NO – GO TO STEP 3.
3. IAT Sensor Output Line Inspection
Turn the ignition switch OFF.
Disconnect the ECM 33P connectors.
Check for continuity between the IAT sensor 2P
(Gray) connector and ECM 33P connectors.
Connection: B29 – Gray/blue
A18 – Green/orange
TOOL:
Test probe
Is there continuity?
YES – Replace the ECM with a new one, and
recheck; for Key Registration Proce-
dures (page 21-4).
NO – • Open circuit in Gray/blue wire
• Open circuit in Green/orange wire
IAT SENSOR 2P (GRAY) CONNECTOR
(Wire side/female terminal)
IAT SENSOR 2P
(GRAY)
CONNECTOR (Wire
side/female terminal)
07ZAJ-RDJA110
G/O
FUEL SYSTEM (PGM-FI)
JUMPER WIRE
Gr/Bu
G/O
ECM 33P (GRAY)
CONNECTOR
(Wire side/
female terminal)
Gr/Bu
B29
A18
ECM 33P (BLACK) CONNECTOR
(Wire side/female terminal)
5-27