7-58 2007 Buell Lightning: Electrical
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SPEEDOMETER PERFORMANCE CHECK 7.20
GENERAL
See Figure 7-76. Use the SPEEDOMETER TESTER (Part
No. HD-41354) for speedometer diagnostics. These diagnos-
tics may include:
● Checking speedometer operation.
● Testing speedometer needle sweeping action.
The tester generates a simulated speedometer sensor signal.
This signal aids in determining whether speedometer
replacement is necessary. It can also be used to simulate
running engine conditions for ignition system troubleshooting.
NOTES
● Use the following procedures in conjunction with the
manual supplied with the speedometer tester.
● Test results may be inaccurate if tester battery is low.
TESTING
NOTE
The SPEEDOMETER TESTER (Part No. HD-41354) cannot
be used to verify the calibration of a speedometer and it will
not verify the speedometer’s function to support legal pro-
ceedings. It’s purpose is to verify speedometer function when
performing service diagnosis or repair. It can also assist in
determining if speedometer replacement is necessary.
Speedometer Operation Test
NOTE
For information on the correct routing of vehicle speed sensor
wiring see 7.26 SPROCKET COVER WIRING.
1. See Figure 7-77. Locate the 3-place vehicle speed sen-
sor connector [65] under the sprocket cover. See 2.34
SPROCKET COVER.
2. Place speedometer tester power switch in the ON posi-
tion. Place signal switch in the OUT position.
3. Turn vehicle ignition switch ON.
4. Begin test.
a. Press ENTER on the tester keypad.
b. Enter a frequency from Table 7-16. Note that differ-
ent markets use different frequencies.
c. Verify that speedometer display reads the corre-
sponding speed. To change the test frequency,
press CLEAR to cancel and enter the new fre-
quency. Press ENTER to begin and reverify.
NOTE
The speedometer should be accurate within 0-5 MPH (0-8
KPH).
Figure 7-76. Speedometer Tester (Part No. HD-41354)
Figure 7-77. Vehicle Speed Sensor Connector [65]
Table 7-16. Speedometer Test
Frequency in Hertz (Hz)
MARKET SPEED FREQUENCY
USA
20 MPH 531
40 MPH 1062
60 MPH 1593
80 MPH 2124
ENG, AUS, EUR,
CAN, JPN
40 KPH 660
60 KPH 990
80 KPH 1320
100 KPH 1650
HD41354
12369
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