Honda BF40D Mode D'emploi page 411

3) DLC short-circuit inspection
• Disconnect the ECM connector A
continuity between the DLC
terminal and the engine ground.
DLC
22
SCS (Light green)
VIEWED FROM THE TERMINAL SIDE
Is there continuity?
YES - Repair short in the main wire harness
between the ECM and the DLC.
NO - Go to "4) MIL ON line short-circuit
inspection."
4) MIL ON line short-circuit inspection
• Check for continuity between the ECM connector A
main wire harness side No.19 (Red/Blue)
9
terminal and the engine ground.
ECM CONNECTOR A
MAIN WIRE HARNESS SIDE
9
VIEWED FROM THE TERMINAL SIDE
Is there continuity?
YES - Repair short in the main wire harness or
handle cable between the ECM and the MIL.
NO - Go to "5) MAP sensor power line short-circuit
inspection."
5) MAP sensor power line short-circuit inspection
. Check for
9
No.4 (Light green)
22
WARNL (Red/Blue)
411
a. Connect the ECM connector A
the MAP sensor 3P connector
b. Turn the combination switch ON and check the MIL.
Does the MIL go OFF?
YES - Replace the MAP sensor.
NO - Go to the step c.
c. Turn the combination switch OFF and disconnect
the ECM connector B .
10
d. Check for continuity between the MAP sensor 3P
connector main wire harness side No.1
3
(Brown/Yellow) terminal and the engine ground.
MAP SENSOR 3P CONNECTOR
MAIN WIRE HARNESS SIDE
3
VIEWED FROM THE TERMINAL SIDE
Is there continuity?
YES - Repair short in the main wire harness
between the ECM and the MAP sensor.
NO - Go to "6) TP sensor power line short-circuit
inspection."
and disconnect
9
.
3
VCC1
(Brown/Yellow)
5-16