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Home >> Toyota >> 2001 >> Sienna CE >> Repair and Diagnosis >> External Pages >> Different car >> Section 457 (Cruise Control System - Diagnosis) >> Circuit Inspection >> DTC P0500/21: Vehicle Speed Sensor "A"; DTC P0503/23: Vehicle Speed Sensor "A" Intermittent/Erratic/High >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

See DTC P0500: VEHICLE SPEED SENSOR (VSS) "A" MALFUNCTION OR DTC P0503: VEHICLE SPEED SENSOR (VSS) "A" INTERMITTENT/ERRATIC/HIGH

DTC CONDITION DETECTION CHART

DTC No. Detection Item Trouble Area
P0500/21.23 Speed signal is not input to the ECM while cruise control is set.
  • Combination meter
  • Wire harness or connector between ECM and vehicle speed sensor
  • Vehicle speed sensor
  • ECM
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