Honda LEAD 110 2009 Service Manual page 138

MIL 29 BLINKS (IACV)
1. Connector inspection
Erase the self diagnosis memory data from the
ECM (page 6-15).
Turn the ignition switch "OFF".
Disconnect the IACV 4P connector.
Check for loose or poor contact on the IACV 4P
connector.
Connect the IACV 4P connector.
Turn the ignition switch "ON".
Check if the MIL blinks.
Does the MIL blink 29 times?
NO – Loose or poor contact on the IACV 4P
connector.
YES – GO TO STEP 2.
2. IACV Resistance Inspection
Turn the ignition switch "OFF".
Disconnect the IACV 4P connector.
Measure the resistance between the IACV 4P
connector terminals.
CONNECTION: A – D
B – C
110 – 150 Ω (20°C/68°F)
STANDARD:
Is the resistance within 110 – 150 Ω (20 ° C/68 ° F)?
NO – Replace the IACV with a new one, and
recheck.
YES – GO TO STEP 3.
3. IACV Short Inspection
Check for continuities between the IACV 4P con-
nector terminals.
Connection: A – B
C – D
Is there continuity?
YES – Faulty IACV.
NO – GO TO STEP 4.
FUEL SYSTEM (Programmed Fuel Injection)
IACV
4P CONNECTOR
IACV
IACV
MIL
4P CONNECTOR
A
B
C
D
4P CONNECTOR
A
B
C
D
6-29