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Home >> Toyota >> 2009 >> Sienna LE, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTC P043E/P043F/P2401/P2402/P2419 - P0607 >> DTC P0500 Vehicle Speed Sensor "A" >> Description
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DTC P0500 Vehicle Speed Sensor "A": Description

The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU. The skid control ECU converts these wheel speed signals into a 4-pulse signal and outputs it to the ECM via the combination meter. The ECM determines the vehicle speed based on the frequency of these pulse signals.

Fig 1: Skid Control ECU Pulse Flow Diagram
G04996368Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC TROUBLE DETECTION CHART

DTC No. DTC Detection Condition Trouble Area
P0500 The ECM detects the following conditions simultaneously for 2 seconds (1 trip detection logic):
  • No SPD (speed sensor) signal while ECM detects NC (transmission counter gear) signal is more than 300 rpm
  • Park / neutral position switch is OFF (When shift lever is in other than P and N positions)
  • Open or short in speed sensor circuit
  • Speed sensor
  • Combination meter
  • ECM
  • Skid control ECU