Honda CBR650RA Shop Manual page 123

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DTC P0112/DTC P0113
Probable cause:
• Faulty IAT sensor or its related circuit
• Faulty ECM
Symptom/Fail-safe function:
• Engine operates normally
1. IAT Sensor Output Line Open Circuit Inspection
Disconnect the ECM 33P (Gray) connector (page 4-
76).
Disconnect the IAT sensor 2P (Black) connector.
Check for continuity between the wire harness side
IAT sensor 2P (Black) connector [1] and ECM 33P
(Gray) connector [2].
CONNECTION: Gray/blue – Gray/blue
Is there continuity?
YES
NO
2. IAT Sensor Output Line Short Circuit Inspection
Check for continuity between the wire harness side
IAT sensor 2P (Black) connector [1] and ground.
CONNECTION: Gray/blue – Ground
Is there continuity?
YES
NO
3. IAT Sensor Ground Line Open Circuit Inspection
Disconnect the ECM 33P (Gray) connector (page 4-
76).
Check for continuity between the wire harness side
IAT sensor 2P (Black) connector [1] and ECM 33P
(Gray) connector [2].
CONNECTION: Green/orange – Green/orange
Is there continuity?
YES
NO
– GO TO STEP 2.
– Open circuit in Gray/blue wire
– Short circuit in the Gray/blue wire
– GO TO STEP 3.
– GO TO STEP 4.
– Open circuit in the Green/orange wire
PGM-FI SYSTEM
Gr/Bu
[1]
(Terminal side of the wire harness)
Gr/Bu
(Terminal side of the wire harness)
G/O
[1]
(Terminal side of the wire harness)
[2]
Gr/Bu
[1]
[2]
G/O
4-19