2006 Buell Lightning: Fuel System 4-83
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Code 36 Test (Part 2 of 2-fan does not run)
YES
YES
Connect jumper wire
between pin 6 (gray) of
Breakout Box and
ground. Does fan run?
NO
With key ON, check for
battery voltage at Y/BN
side of fan connector. Is
battery voltage present?
YES
Connect Breakout Box to ECM gray
connector (leave ECM discon-
nected). With key ON, check for volt-
age at pin 6 (gray) of Breakout Box.
Is battery voltage present?
NO
Repair open in circuit
between fan connector [97B]
Y/BR wire and fuse block.
YES
Replace ECM.
NO
Replace fan.
Continued from Code 36 Test (Part 1 of 2-fan
runs continuously). Check cooling fan fuse
(7.5 amp) at fuse panel. Is fuse ok?
NO
Disconnect fan connector [97].
Remove cooling fan fuse.
Check for continuity to ground
between terminal 24 of fuse
block and chassis ground.
Continuity present?
YES
NO
Repair short to
ground in Y/BN
wire.
Is there an obstruction
preventing fan from
rotating?
YES
Remove obstruction
preventing fan rotation.
NO
Disconnect fan harness at
fan. Use ohmmeter to mea-
sure resistance between Y/
BN terminal and BK terminal
of fan connector [97A].
Resistance greater than 1
ohm?
Check for continuity between
pin 6 (gray) of Breakout Box
and BK/O wire of fan connector
[97A]. Continuity present?
Check for continuity
between Y/BN wire and
BK wire of fan connector
[97A] Continuity present?
YES
NO
Repair open in circuit
between pin 6 of ECM
gray connector [11]
(gray) and BK/O wire of
fan connector [97B].
Disconnect fan harness at
fan. Place a jumper wire
between fan Y/BN wire and
battery positive. Place a
jumper between fan BK
wire and ground. Does fan
run at full speed?
System ok.
YES
Replace fan.
NO
7879
NO
Replace fan.
2
YES
NO
YES
Reinstall cooling fan fuse.
Using connector kit (HD-
41404) and jumper wire,
connect Y/BN terminal to
battery positive. Connect
BK terminal to ground.
Does fan run?
YES
NO
Replace fan.
System ok.
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