Buell XB9R 2003, Service Manual, Page: 551 / 566

7-52 2003 Buell XB9R: Electrical
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Speedometer Test: Chart 2B
INOPERATIVE, INACCURATE OR ERRATIC SPEEDOMETER
Continued from Speedometer Test: Chart 2A .
Check for 11-13 VDC on GY wire in vehicle speed sensor
connector [65B]. Voltage present?
YES
Check for continuity to ground
on BK wire in connector [65B].
Continuity present?
NO
Check for open/
grounded wires.
Wires OK?
YES
Replace
instrument module.
NO
Repair
wires.
YES
Check for voltage on W wire
in connector [65B]. While
connected, meter should read
4-6 VDC when gear tooth
absent and 0-1 VDC when gear
tooth present. Does it?
NO
Check for open
wires. Wires OK?
YES
Replace
instrument module.
NO
Repair
wires.
YES
Check instrument module power
(O/W wire) and ground terminal (BK
wire) voltage at back of instrument
module. Test voltage while shaking
harness. Does voltage fluctuate?
NO
4-6 VDC is
not present.
Replace
instrument module
NO
4-6 VDC is present,
but no flunctuation
to 0-1 VDC.
Replace vehicle speed
sensor.
YES
Repair as necessary.
NO
Check for spark plug wire terminals properly
seated onto spark plugs and secondary coil
terminals. Check for wear points on spark
plug wires where insulation may be
damaged. Does damage exist?
YES NO
Check speedometer speed
sensor. Clean or replace sen-
sor as required. Retest.
Problem solved?
NO
Replace
instrument module.
YES
System OK.
6022 6013
6022 6013
6022
6010
6008
6016
6029
6024
Repair as necessary.