Buell 2004 XB9S, Service Manual, Page: 364 / 597

2004 Buell Lightning: Fuel System 4-55
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Code 14 Test (Part 2 of 2)
Continued from Code 14 Test (Part 1 of 2) .
Connect ECM to Breakout Box. With DVOM still
connected, check for intermittents by performing
4.7 WIGGLE TEST . Intermittents present?
YES
While wiggling harness to locate source of
intermittents, perform the steps under Code
14 Test (Part 1 of 2) marked by
Bold Asterisks. Repair as necessary.
Disconnect ET sensor connector. Turn igni-
tion switch ON. Using a DVOM, measure the
voltage between ECM Pin 9 of [11] and Pin 2
of [10] on Breakout Box.
Is voltage approximately 5 volts?
YES NO
Less than
4.7 volts
NO
Greater than
5.3 volts.
Replace ET sensor ( 4.34
ENGINE TEMPERATURE
SENSOR ), clear codes and
road test. Did check engine
lamp come on and set only
CODE 14?
With ET sensor disconnected, dis-
connect ECM connector [11]. Mea-
sure resistance between ECM
Pin 9 of [11] and Pin 2 of [10].
Is resistance less than 1 ohm?
Unplug ECM leaving Breakout Box
connected at vehicle harness.
Measure voltage between ECM
Pin 9 of [11] and Pin 2 of [10] on
Breakout Box.
Is the voltage 0 volts?
Install original ET sensor,
replace ECM ( 4.30 ELEC-
TRONIC CONTROL MODULE )
and road test.
YES
System OK. Repair short to
ground on
PK/Y wire.
YES YES
Examine ET signal wire
(PK/Y) for short to 12
volts and repair.
NO
NO NO
At some point in the flow chart you may be instructed
to jump directly to the box marked by an asterisk. Dis-
regard the asterisk (but not the instruction box) if your
normal progression through the chart brings you to
this location.
Replace ECM. See
4.30 ELECTRONIC
CONTROL MODULE .
Replace ECM. See
4.30 ELECTRONIC
CONTROL MODULE .
1
NO
Clear codes and confirm proper operation with no
check engine lamp. Codes can be cleared using
DIGITAL TECHNICIAN (Part No. HD-44750).