Buell 2008 XB SERIES Electrical Diagnostics Manual page 157

Cooling Fan: DTC P0691 (32); DTC P0692 (32) (Part 1 of 2)
Does cooling fan run
continuously?
YES
Disconnect connector [10] (Black) at
Electronic Control Module (ECM).
Turn Ignition Switch ON.
Does Cooling Fan run?
YES
Repair short to ground
in (BK/O) wire between
ECM and Cooling Fan.
YES
Allow engine to
cool. Go to BOLD
ASTERISK on this
page.
YES
Turn Ignition Switch ON.
Does the Cooling Fan run
continuously?
YES
Defective ECM or
ECM connection.
At some point in the flow chart you may be
instructed to jump directly to a box with the
*
bold asterisk. Disregard the asterisk (but not
the instruction box) if your normal
progression through the chart brings you to
this location.
NO
STOP
Go to Cooling Fan Test,
DTC P0691 (36); P0692
(36) (Part 2 of 2).
NO
Is engine hot?
NOTE:
Fan will engage when cylinder head
o
temperature exceeds 428
NO
Turn Ignition Switch OFF. Connect Breakout
*
Box to ECM connector [11] (Gray). Turn
Ignition Switch ON. Measure volts at
2
Breakout Box connector [11] (Gray) terminal
"11" .
Is voltage greater than 1.3 volts?
NO
See Engine
Temperature
Sensor Test.
NO
System OK.
2008 Buell XB Diagnostics: Engine Management 2-107
o
F (220 C).
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