Honda CRF450R 2009 Service Manual page 171

FUEL SYSTEM (PGM-FI)
When The Engine Starts But The MIL
Does Not Go Off Within A Few
Seconds
Jf the MIL does not go off within a few seconds after the
engine has been started , check as follows:
Slop the engine.
'09 - '12: Remove the righ t radiator shroud (page 3-4).
Disconnect the engine slOp switch 4P (Natural)
connector.
After
'12: Disconnect the engine stop switch 4P (Black)
connector.
Check for continuity between the engine stop switch 4P
(,09· '12: Natural, After '12: Black) connector terminal
of the wire hamess side and ground ,
Connection : White/blue - Gr ound
- If there is continuity, check for short circuit in the
Whitefblue wire between the ECM and MIL
- If there is no continuity, check the Ole circuit as
follow:
4P ('09 - ' 12: NATURAL, After '12: BLACK)
CONNECTOR (WIre side/female terminals)
W/Bu
Q
Connect the engine stop switch 4P (,09 · '12: Natural ,
~=================~
After '12: Black) connector. ECM 33P (BLACK) CONNECTOR
Disconnect the ECM 33P (Black) connector, (Wire sldelfemale terminals)
Check for continuity between the ECM 33P (Black)
connector of the wire harness side and ground ,
Connection: 27 - Ground
TOOL:
Test probe, 2 pack
07ZAJ·ROJA 110
If there is continuity, check for short circuit in the
Brown wire between the OLC and ECM ,
If there is
no
continuity, replace the ECM with a
known good one, and recheck ,
27
Q
6-39