Honda BF40D Mode D'emploi page 467

3) CYLM line short-circuit inspection
• Check for continuity between the pulser coil 2P
connector main wire harness side No.1 (Black)
16
terminal and the engine ground.
PULSER COIL 2P CONNECTOR
MAIN WIRE HARNESS SIDE
16
CYLM
(Black)
VIEWED FROM THE TERMINAL SIDE
Is there continuity?
YES - Repair short in the main wire harness
between the ECM and the pulser coil.
NO - Go to "4) CYL line open-circuit inspection."
4) CYL line open-circuit inspection
• Connect the pulser coil 2P connector
continuity between the main wire harness side No.5
(Blue/Yellow) terminal and No.24 (Black) terminal of
the ECM connector A
9
ECM CONNECTOR A
MAIN WIRE HARNESS SIDE
9
CYLM (Black)
VIEWED FROM THE TERMINAL SIDE
Is there continuity?
YES - Go to "5) Pulser rotor inspection."
NO - Repair open in the main wire harness
between the ECM and the pulser coil.
. Check for
16
.
CYLP
(Blue/Yellow)
467
5) Pulser rotor inspection
• Inspect the pulser rotor.
Is the pulser rotor damaged?
YES - Replace the pulser rotor with a new one and
recheck.
NO - Go to "6) Pulser coil inspection."
6) Pulser coil inspection
• Disconnect the pulser coil 2P connector
Measure the resistance between the pulser coil side
No.1 terminal and No.2 terminal of the pulser coil 2P
connector .
16
PULSER COIL 2P CONNECTOR
PULSER COIL SIDE
16
CYLM (Black)
VIEWED FROM THE TERMINAL SIDE
Is the measurement within 288 - 352 ?
YES - Replace the ECM with a new one and
recheck.
NO - Replace the pulser coil with a new one and
recheck.
.
16
CYLP
(Blue/Yellow)
5-72