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DTC P0500 Vehicle Speed Sensor "A": Description

Vehicles, which are equipped with ABS (Anti-Lock Brake System), detect the vehicle speed using the skid control ECU and wheel speed sensor. The wheel speed sensor monitors the wheel rotation speed and sends a signal to the skid control ECU. The skid control ECU converts the wheel speed signal into a 4-pulse signal and transmits it to the ECM via the combination meter. The ECM determines the vehicle speed based on the frequency of the pulse signal.

Fig 1: Identifying Vehicle Speed Sensor A Communication Diagram
G04869146Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC TROUBLE DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
P0500 While vehicle being driven, no vehicle speed sensor signal is transmitted to ECM
(1 trip detection logic: Automatic transaxle)
(2 trip detection logic: Manual transaxle)
  • Open or short in vehicle speed sensor circuit
  • Vehicle speed sensor
  • Combination meter
  • ECM
  • Skid control ECU