Honda CBR650F Service Manual page 113

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PGM-FI SYSTEM
3. Fuel Injector Resistance Inspection
Turn the ignition switch OFF.
Measure the resistance between the 2P connector
terminals of the fuel injector [1].
STANDARD: 11 – 13 Ω (20°C/68°F)
Is the resistance within standard value?
YES
NO
4. Fuel Injector Signal Line Open Circuit Inspection
Disconnect the ECM 33P (Black) connector (page
4-35).
Check for continuity between the wire harness side
fuel injector 2P (Black) connector [1] and ECM 33P
(Black) connector [2] terminals.
TOOL:
Test probe
CONNECTION:
No. 1: Pink/green – Pink/green
No. 2: Pink/blue – Pink/blue
No. 3: Pink/white – Pink/white
No. 4: Pink/black – Pink/black
Is there continuity?
YES
NO
5. Fuel Injector Signal Line Short Circuit Inspection
Check for continuity between the wire harness side
injector 2P (Black) connector [1] terminal and
ground.
CONNECTION:
No. 1: Pink/green – Ground
No. 2: Pink/blue – Ground
No. 3: Pink/white – Ground
No. 4: Pink/black – Ground
Is there continuity?
YES
NO
4-24
– GO TO STEP 4.
– Faulty fuel injector
07ZAJ-RDJA110
– GO TO STEP 5.
– • Open circuit in Pink/green wire
• Open circuit in Pink/blue wire
• Open circuit in Pink/white wire
• Open circuit in Pink/black wire
– • Short circuit in Pink/green wire
• Short circuit in Pink/blue wire
• Short circuit in Pink/white wire
• Short circuit in Pink/black wire
– Replace the ECM with a known good one,
and recheck.
[1]
No. 3
P/W
No. 2
P/Bu
P/G
[1]
No. 1
[1]
No. 4
P/Bl
[2]
No. 1: P/G
No. 2: P/Bu
No. 3: P/W
No. 4: P/Bl