Honda CBR650F Service Manual page 119

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PGM-FI SYSTEM
3. IACV Internal Short Circuit Inspection
Check for continuity between the 4P connector
terminals of the IACV [1].
TOOL:
Test probe
CONNECTION: A – B
Is there continuity?
YES
NO
4. IACV Line Open Circuit Inspection
Disconnect the ECM 33P (Black) connector (page
4-35).
Check for continuity between the wire harness side
ECM 33P (Black) connector [1] and IACV 4P (Black)
connector [2] terminals.
TOOL:
Test probe (2 required)
CONNECTION:
Yellow/green – Yellow/green
Violet/white – Violet/white
Gray/red – Gray/red
Pink/black – Pink/black
Is there continuity?
YES
NO
5. IACV Line Short Circuit Inspection
Check for continuity between the wire harness side
IACV 4P (Black) connector [1] terminals and
ground.
TOOL:
Test probe
CONNECTION:
Yellow/green – Ground
Violet/white – Ground
Gray/red – Ground
Pink/black – Ground
Is there continuity?
YES
NO
4-30
07ZAJ-RDJA110
C – D
– Faulty IACV
– GO TO STEP 4.
07ZAJ-RDJA110
– GO TO STEP 5.
– • Open circuit in Yellow/green or Violet/
white wire
• Open circuit in Gray/red or Pink/black
wire
07ZAJ-RDJA110
– • Short circuit in Yellow/green or Violet/
white wire
• Short circuit in Gray/red or Pink/black
wire
– Replace the ECM with a known good one,
and recheck.
A
[1]
C
Y/G
V/W
P/Bl
Gr/R
[1]
[1]
V/W
P/Bl Gr/R
B
D
[2]
Y/G
V/W
P/Bl
Gr/R
Y/G