Buell 2002 X1 Handbook page 257

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Code 15 Test (Part 2 of 2)
At some point in the flow chart you
may be instructed to jump directly to
the box marked by an asterisk. Disre-
gard the asterisk (but not the instruc-
tion box) if your normal progression
through the chart brings you to this
location.
Clear codes and confirm proper
operation with no check engine
lamp.
2002 Buell X1: Fuel System
Continued from Code 15 Test (Part 1 of 2)
Disconnect IAT sensor connector [89]. Measure
2
resistance between Pins 1 and 2 of [89] at sensor.
With engine at room temperature (60-90° F),
is resistance between 6816 -3314 ohms?
YES
Using a DVOM, measure the resistance
between IAT sensor connector [89] terminal
1 and ECM Pin 10 on Breakout Box.
Is it less than 1.0 ohm?
3
YES
Using a DVOM, measure the resistance
between IAT sensor connector [89] terminal
2 and ECM Pin 7 on Breakout Box.
Is it less than 1.0 ohm?
3
YES
Using a DVOM, measure the resistance
between ECM Pins 10 and 7 of connector
[11] on Breakout Box.
Is it greater than 1.0 megaohm?
YES
Using a DVOM, measure the resistance
between ECM Pin 10 of connector [11] on
Breakout Box and ground.
Is it greater than 1.0 megaohm?
YES
To locate sources of intermittents, wiggle
harness while performing steps marked
above by Bold Asterisk.
Repair as necessary.
NO
Replace IAT sensor. See
INTAKE AIR TEMPERATURE
SENSOR.
NO
Examine Lt. GN/Y
wire in harness for
open circuit and
repair.
NO
Examine BK/W wire
in harness for open
circuit and repair.
NO
Examine Lt. GN/Y wire and
BK/W wire in harness for short
between these two circuits and
repair.
NO
Examine harness
for short to ground
and repair.
7755
4.35
7760
7750
7750
7750
7750
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