Honda CB 600F Hornet 2007 Shop Manual page 136

FUEL SYSTEM (PGM-FI)
OTC 9-1 (IAT SENSOR LOW VOLT AGE)
• 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
OTC.
1. IAT Sensor System Inspection
Turn the ignition switch ON and engine stop
switch
Check the IAT sensor with the HOS pocket tester.
Is about O Vindicated?
YES
NO
2. IAT Sensor Inspection
Turn the ignition switch OFF.
Disconnect the IAT sensor 2P (Gray) connector.
Turn the Ignition switch ON and engine stop
switch
Check the IAT sensor with the HOS pocket tester.
Is about O Vindicated?
YES
NO
3. IAT Sensor Output Line Short Circuit Inspection
Turn the ignition switch OFF.
Check for continuity between the IAT sensor 2P
(Gray) connector terminal of the wire harness
side and ground.
CONNECTION: Gray/blue - Ground
Is there continuity?
YES
NO
5-26
"0".
- GO TO STEP 2.
- Intermittent failure
"O".
- GO TO STEP 3.
- Faulty IAT sensor
- Short circuit in Gray/blue wire
- Replace the ECM with a known good
one, and recheck; refer to Key Registra­
tion Procedures (page 21-6)
Gray/blue
2P (Gray) CONNECTOR
(Wire side/female terminals)