Buell 2003XB9S Service Manual page 331

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Test 4.10
YES
With ignition key switch OFF, reconnect
black ECM connector [10]. With ignition key
switch ON, verify that there is
NOT a 4 second lamp OFF period.
Is there a lamp OFF period?
YES
Check engine lamp
function OK. Check for
trouble codes. See 4.4
CHECKING FOR
TROUBLE CODES.
4-22 2003 Buell XB9S: Fuel System
Turn ignition key switch OFF. Disconnect
1
black ECM connector [10]. Turn ignition key
switch ON. Check engine lamp
should be OFF. Is it?
NO
Replace ECM. See
4.29 ELECTRONIC
CONTROL MODULE.
7150
NO
Repair short to ground
on BK/Y wire between
connector [39] and
connector [10].
7165