Honda BF40D Mode D'emploi page 428

• IAC VALVE TROUBLESHOOTING
DTC 14-1: Abnormal IAC valve
1) Symptom reproduction test
a. Turn the combination switch OFF. Disconnect the
IAC valve 2P connector
again.
b. Clear the DTC (P. 5-12).
• Continue the procedure when the DTC does not
clear.
c. Start the engine ad check the DTC using the HDS
(Dr. H or pocket tester).
Does the DTC 14-1 appear?
YES - Go to "2) IAC valve inspection."
NO - Temporary failure (Disappears.)
2) IAC valve inspection
a. Turn the combination switch OFF and disconnect
the IAC valve 2P connector
b. Measure the resistance between the IAC valve side
No.1 terminal and No.2 terminal of the IAC valve 2P
connector .
5
IAC VALVE 2P CONNECTOR IAC VALVE SIDE
VIEWED FROM THE TERMINAL SIDE
Is the measurement within 10 - 13 ?
YES - Go to the step c.
NO - Replace the IAC valve with a new one and
recheck.
5-33
once and connect it
5
.
5
5
EACVM
EACVP
428
c. Check for continuity between the IAC valve 2P
connector IAC valve side No.1 terminal and the
5
engine ground.
IAC VALVE 2P CONNECTOR IAC VALVE SIDE
5
VIEWED FROM THE TERMINAL SIDE
Is there continuity?
YES - Replace the IAC valve with a new one and
recheck.
NO - Go to the step d.
d. Check for continuity between the IAC valve 2P
connector IAC valve side No.2 terminal and
5
the engine ground.
IAC VALVE 2P CONNECTOR IAC VALVE SIDE
5
VIEWED FROM THE TERMINAL SIDE
Is there continuity?
YES - Replace the IAC valve with a new one and
recheck.
NO - Go to "3) EACVP line short-circuit check."
EACVM
EACVP