Honda SH300 2006 Manual page 152

FUEL SYSTEM (PGM-FI)
2. IACV Circuit Continuity Inspection
Connect the ECM test harness to ECM connector.
Check the continuities between the test harness
and the IACV 4P connector.
Connection: A21 – Light green
Are there continuities?
YES
NO
3. IACV Resistance Inspection
Measure the resistance at the IACV 4P connector
terminals.
Connection: A – D
STANDARD: 110 – 150 Ω (20 °C/68 °F)
Is the resistance within 110 – 150 Ω (20°C/68°F)?
YES
NO
4. IACV Short Circuit Inspection
Check for continuity at the IACV 4P connector
terminals of the IACV side.
Connection: A – B
STANDARD: No continuity
Is there continuity?
YES
NO
6-42
A20 – Brown
A32 – Gray/Red
A31 – Black/Red
– GO TO STEP 3.
– • Open circuit in Light green or Brown
wire
• Open circuit in Gray/Red or Black/red
wire
B – C
– GO TO STEP 4.
– Faulty IACV. Replace the IACV with a
new one, and recheck.
C – D
– Faulty IACV. Replace the IACV with a
new one, and recheck.
– Replace the ECM with new one, and
recheck; refer to Key Registration Proce-
dures (page 23-4)
33P CONNECTOR
(Wire side of female
terminals)
Lg
Gr/R
Bl/R
Br
4P CONNECTOR (Wire
side of female
terminals)
4P CONNECTOR (Motor
side of male terminals)
A
B
4P CONNECTOR
(Motor side of male
terminals)
B
A
C
D
C
D