Honda CBF600SA Service Manual page 141

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys.
DTC 9-2 (IAT SENSOR HIGH VOLTAGE)
• Before starting the inspection, check for loose or
poor contact on the IAT sensor 2P (Gray) 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 pocket tester.
Is about 5 V indicated?
YES
NO
2. IAT Sensor Inspection
Turn the ignition switch OFF.
Disconnect the IAT sensor 2P (Gray) connector.
Connect the IAT sensor terminals 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 pocket tester.
Is about 0 V indicated?
YES
NO
3. IAT Sensor Output Line Inspection
Turn the ignition switch OFF.
Disconnect the ECM 33P connectors.
Check the continuity at the Gray/blue and Green/
orange wire between the IAT sensor 2P (Gray)
connector terminals and the ECM 33P connec-
tors.
CONNECTION: B29 – Gray/blue
TOOL:
Test probe
Are there continuities?
YES
NO
email: info@motomatrix.co.uk
".
– GO TO STEP 2.
– Intermittent failure
".
– Faulty IAT sensor
– GO TO STEP 3.
A18 – Green/orange
07ZAJ-RDJA110
– Replace the ECM with a known good
one, and recheck; refer to Key Registra-
tion Procedures (page 21-6)
– • Open circuit in Gray/blue wire
• Open circuit in Green/orange wire
FUEL SYSTEM (PGM-FI)
Gray/blue
Green/
orange
2P (Gray) CONNECTOR
(Wire side/female terminals)
33P (Light gray) CONNECTOR B
(Wire side/female terminals)
2P (Gray) CONNECTOR
(Wire side/female terminals)
Gray/
blue
B29 TERMINAL
Green/
orange
33P (Black) CONNECTOR A
(Wire side/female terminals)
JUMPER WIRE
A18
TERMINAL
5-27