General - Buell 2008 XB SERIES Electrical Diagnostics Manual

DTC P0502 (43), P0503 (43), P0608 (37)

GENERAL

Vehicle Speed Sensor
See Figure 2-59. The vehicle speed sensor is powered and
monitored by the ECM. The ECM processes the vehicle speed
signal and transmits this signal to the speedometer through
serial data.
Table 2-41. Code Description
DTC CHECK
ENGINE
LAMP CODE
P0502 43
P0502 43
P0608 37
ed01332
Figure 2-59. Vehicle Speed Sensor
DESCRIPTION
Vehicle Speed Sensor (VSS)
high
Vehicle Speed Sensor (VSS)
intermittent or erratic
Vehicle Speed Sensor (VSS)
control module fail
ed01306
Figure 2-60. Vehicle Speed Sensor Location
DIAGNOSTICS
PART NUMBER
B-48115 BREAKOUT BOX
HD-41354 SPEEDOMETER TESTER
HD-41354-1 INPUT/OUTPUT CABLE
Diagnostic Notes
If a short low/open or a short high condition, the P0608 code
is set reflecting a problem in the Vehicle Speed Sensor (VSS),
Electronic Control Module (ECM), Instrument Module (IM), or
wiring harness.
Each reference number below correlates to a circled number
on the flow chart(s).
1. Use SPEEDOMETER TESTER (Part No. HD-41354) and
INPUT/OUTPUT CABLE (Part No. HD-41354-1) to provide
a signal to the speed indication system.
2. Connect BREAKOUT BOX (Part No. B-48115) between
wire harness and ECM.
2008 Buell XB Diagnostics: Engine Management 2-77
2.23
TOOL NAME