![background image](http://html1.mh-extra.com/html/honda/marine-bf135a/marine-bf135a_manual_2157757036.webp)
2-26
BF135A•BF150A
No
Yes
Check the CKP sensor connector.
Is the connector connected securely?
Connect the CKP sensor connector properly
and recheck.
No
Yes
Check for open circuit in the ignition coil’s
ground line.
1 Turn the ignition switch OFF.
2 Check for continuity between the No. 2
(Black/White) terminal of the respective
harness side 3P connectors and the
engine ground.
Is there continuity?
• Replace or repair the wire harness. (Open
circuit in the wire harness between the igni-
tion coil and the engine ground.)
• Check the engine ground and repair as nec-
essary.
No
Check for open circuit in the ignition coil’s
power line.
1 Disconnect the 3P connectors from
each of the ignition coils.
2 Turn the ignition switch ON. Measure
the voltage between the No.
3
(Yellow/Green) terminal of each har-
ness side 3P connector and the engine
ground.
Is there the battery voltage?
Replace or repair the wire harness. (Open cir-
cuit in the wire between the No. 6 (15A) fuse
and the ignition coil.)
Yes
Ignition coil
harness side
3P connector
Viewing from
terminal side
Ignition coil
harness side
3P connector
Viewing from
terminal side