Honda CBR650RA Shop Manual page 159

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P0112 (IAT SENSOR LOW VOLTAGE)
1. IAT Sensor System Inspection
Check the IAT sensor with the MCS or GST.
Is about 0 V indicated?
YES
NO
2. IAT Sensor System Inspection with Connector
Disconnected
Turn the ignition switch OFF.
Disconnect the IAT sensor 2P (Black) connector
(page 4-79).
Check the IAT sensor with the MCS or GST.
Is about 0 V indicated?
YES
NO
3. IAT Sensor Output Line Short Circuit Inspection
Turn the ignition switch OFF.
Disconnect the ECM 33P (Gray) connector (page 4-
76).
Check for continuity between the wire harness side
IAT sensor 2P (Black) connector [1] terminal and
ground.
CONNECTION: Gray/blue – Ground
Is there continuity?
YES
NO
P0113 (IAT SENSOR HIGH VOLTAGE)
• Before starting the inspection, check for loose or
poor contact on the IAT sensor 2P (Black), ECM 33P
(Black) and 33P (Gray) connectors, and recheck the
DTC.
1. IAT Sensor System Inspection
Check the IAT sensor with the MCS or GST.
Is about 5 V indicated?
YES
NO
2. IAT Sensor System Inspection with Jumper Wire
Turn the ignition switch OFF.
Disconnect the IAT sensor 2P (Black) connector
(page 4-79).
Connect the wire harness side IAT sensor 2P
(Black) connector [1] terminals with a jumper wire
[2].
CONNECTION: Gray/blue – Green/orange
Check the IAT sensor with the MCS or GST.
Is about 0 V indicated?
YES
NO
– GO TO STEP 2.
– Intermittent failure
– GO TO STEP 3.
– Faulty IAT sensor
– Short circuit in Gray/blue wire
– Replace the ECM with a known good one,
and recheck.
– GO TO STEP 2.
– Intermittent failure
– Faulty IAT sensor
– GO TO STEP 3.
PGM-FI SYSTEM
Gr/Bu
[1]
G/O
Gr/Bu
[2]
[1]
4-55