Buell 2008 XB SERIES Electrical Diagnostics Manual page 158

Cooling Fan: DTC P0691 (32); DTC P0692 (32) (Part 2 of 2)
YES
Connect Breakout Box (Part No. B-
48115) to ECM (Black) connector
2
(leave ECM disconnected). With
Ignition Switch ON, check for voltage
3
at Breakout Box terminals "2" and "3".
Is battery voltage present?
YES
Connect jumper wire between ground and
the following Breakout Box terminals.
Connector [10] (Black) terminal "2"
4
Connector [10] (Black) terminal "3"
Does the Cooling Fan run?
YES
Replace
ECM.
NOTES:
Clear DTCs and confirm
proper operation with no
check engine lamp. Codes
can be cleared using
DIGITAL TECHNICIAN (Part
No. HD-44750).
After replacing ECM or TPS,
TPS zero set procedure
must be performed. Refer
to THROTTLE POSITION
SENSOR in the appropriate
Buell Service Manual.
2-108 2008 Buell XB Diagnostics: Engine Management
Continued from Cooling Fan Test, DTC P0691
(36); P0692 (36) (Part 1 of 2).
Check cooling fan fuse (10 amp) at Fuse Panel.
YES
NO
Check for continuity
between Breakout Box
connector [10] terminals
5 "2" and "3" and (BK/O)
wire of cooling fan
connector [97B].
Is Continuity present?
YES
Check for continuity
between (Y/BN) wire
and (BK) wire of cooling
fan connector [97A].
Is continuity present?
YES
Disconnect cooling fan harness at the
fan. Place a jumper wire between (Y/
BN) wire and battery positive (+). Place
a jumper between cooling fan (BK) wire
and ground.
Does the Cooling Fan run at full
speed?
YES
System
OK.
Is fuse ok?
NO
With Ignition Switch ON,
Repair short
check for battery voltage
at [97] terminal "1" cooling
(Y/BN) wire.
fan connector.
Is battery voltage present?
YES
NO
Repair open in
Remove
circuit between
obstruction.
cooling fan
connector [97B]
(Y/BN) wire and
fuse block.
NO
Repair open in Reinstall cooling fan fuse.
5
circuit between Using connector kit (HD-41404)
ECM connector and jumper wire, connect (Y/
[10] (Black) and BN) terminal to battery positive
(BK/O) wire of (+). Connect (BK) terminal to
cooling fan
connector [97B]. Does Cooling Fan run?
NO
Replace
Cooling
Fan.
NO
Replace
Cooling Fan.
NO
Disconnect cooling fan
connector [97]. Remove cooling
fan fuse. Check for continuity to
ground between fuse block
terminal "24" ("4" on Firebolt)
and chassis ground.
Is Continuity present?
YES NO
Is there an
obstruction
to ground in
preventing the
Cooling Fan
from rotating?
NO
Disconnect cooling fan
harness at fan. Use
ohmmeter to measure
resistance between (Y/BN)
terminal and (BK) terminal of
connector [97A].
Is resistance greater than 1
ohm?
YES NO
Replace
Cooling
Fan.
ground.
YES NO
System
Replace
OK.
Cooling
Fan.
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