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Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2005 Lexus RX 330. However, it is still accessible from the selected car via links, so may be relevant.

If a malfunction code is indicated during the DTC check, check the circuit listed for that code in the table below.

DIAGNOSTIC TROUBLE CODE CHART

DTC No. (Refer To) Circuit Inspection Trouble Area
P0500/21 (DTC P0500/21: VEHICLE SPEED SENSOR "A", DTC P0503/23 VEHICLE SPEED SENSOR "A" INTERMITTENT/ERRATIC/HIGH  ) Vehicle Speed Sensor "A"
  • Combination meter assy
  • Vehicle speed sensor
  • Vehicle speed sensor circuit
  • ECM
P0503/23 (DTC P0500/21: VEHICLE SPEED SENSOR "A", DTC P0503/23 VEHICLE SPEED SENSOR "A" INTERMITTENT/ERRATIC/HIGH  ) Vehicle Speed Sensor "A" Intermittent/Erratic/High
P0571/52 (DTC P0571/52: BRAKE SWITCH "A" CIRCUIT  ) Brake Switch "A" Circuit
  • Stop lamp switch assy
  • Stop lamp switch assy circuit
  • ECM
P0607/54 (DTC P0607/54: CONTROL MODULE PERFORMANCE  ) Control Module Performance
  • ECM