Honda CBR650RA Shop Manual page 136

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PGM-FI SYSTEM
DTC P0412
Probable cause:
• Faulty PAIR control solenoid valve or its related
circuit
• Faulty ECM
Symptom/Fail-safe function:
• Engine operates normally
1. PAIR Control Solenoid Valve Input Voltage
Inspection
Disconnect the PAIR control solenoid valve 2P
(Black) connector (page 7-19).
Turn the ignition switch ON.
Measure the voltage between the wire harness side
PAIR control solenoid valve 2P (Black) connector [1]
and ground.
CONNECTION: Black/blue (+) – Ground (–)
Is there battery voltage?
YES
NO
2. PAIR Control Solenoid Valve Signal Line Open
Circuit Inspection
Disconnect the ECM 33P (Black) connector (page
4-76).
Check for continuity between the wire harness side
PAIR control solenoid valve 2P (Black) connector [1]
and ECM 33P (Black) connector [2].
CONNECTION: Yellow/blue – Yellow/blue
Is there continuity?
YES
NO
3. PAIR Control Solenoid Valve Signal Line Short
Circuit Inspection
Check for continuity between the wire harness side
PAIR control solenoid valve 2P (Black) connector [1]
and ground.
CONNECTION: Yellow/blue – Ground
Is there continuity?
YES
NO
4-32
– GO TO STEP 2.
– Open circuit in the Black/blue wire
– GO TO STEP 3.
– Open circuit in the Yellow/blue wire
– Short circuit in the Yellow/blue wire
– GO TO STEP 4.
[1]
Bl/Bu
(Terminal side of the wire harness)
[1]
Y/Bu
(Terminal side of the wire harness)
Y/Bu
(Terminal side of the wire harness)
[2]
Y/Bu
[1]