2-20
BF135A•BF150A
b. IGNITION (POWER) SYSTEM
• ENGINE DOES NOT START
Open in the wire harness between the
indicator light and No. 5 (10A) fuse.
• Replace or repair the wire harness.
• Replace the indicator light.
Replace the blown fuse(s).
Remove the cause of the
blown fuse(s) before replace-
ment (see FUSE LOAD
CHART on P. 2-20).
Replace the PGM-FI main
relay.
Replace the ignition switch.
Replace or repair the main
wire harness.
Perform MIL troubleshooting of “MIL
DOES NOT COME ON” (P. 5-18 or
5-61).
Replace the No. 5 (10A) fuse.
Remove the cause of the blown fuse
before replacement (see FUSE LOAD
CHART on P. 2-20).
Turn the ignition switch ON. Check
whether the warning buzzer sounds
twice.
Perform the following checks and
repair if necessary.
• Open in the wire between the MIL
and ECM.
• Blown MIL.
If there is no problem, replace the
ECM with a new one and recheck.
Does not
sound.
NO
NO
NO
NO
NO
Does not come ON.
YES
YES
YES
YES
Sounds.
YES
Comes ON.
Check the power line of the main
wire harness.
Is the main wire harness normal?
Check the ignition switch.
Is the ignition switch normal?
Check the PGM-FI main relay.
Is the main relay normal?
Check for blown No. 3 (10A), No. 7
(30A) and the No. 4 (15A) fuses.
Are the fuses normal?
Check the No. 5 (10A) fuse.
Is the fuse normal?
Turn the ignition switch ON and check
whether the alternator indicator light
comes ON (with the engine stopped).