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Home >> Lexus >> 2005 >> RX 330 AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System (Dynamic Laser) - Diagnostics >> Diagnostic Trouble Code Chart

Diagnostic Trouble Code Chart

HINT:

DTC CHART

DTC No. Circuit Inspection Trouble Area
P0500/21  ( ) Vehicle speed sensor "A"
  • Combination meter
  • Vehicle speed sensor
  • Vehicle speed sensor signal circuit
  • ECM
P0503/23  ( ) Vehicle speed sensor "A" Intermittent/Erratic/High
P0571/52  ( ) Brake switch "A" circuit
  • Stop lamp switch
  • Stop lamp switch signal circuit
  • ECM
P0607/54  ( ) Control module performance
  • ECM (This DTC indicates a malfunction in the ECM. When this DTC is output, it is necessary to replace the ECM.)
P1615/61  ( ) Communication error from distance control ECU to engine ECU
  • Communication circuit
  • Cruise control ECU (Distance control ECU)
  • ECM
P1616/62  ( ) Communication error from engine ECU to distance control ECU
U0122/64  ( ) Lost communication with vehicle dynamics control module
  • Communication circuit
  • ABS & traction actuator assy (Skid control ECU)
  • ECM
U0100/65  ( ) Lost communication with ECM/PCM
P1575/66  ( ) Warning buzzer malfunction
  • VSC system (Buzzer active test)
  • Skid control buzzer assy
  • Skid control buzzer circuit
  • ABS & traction actuator assy (Skid control ECU)
P1578/69 (1) ( ) Brake system malfunction
  • VSC system
U0235/71  ( ) Communication error from laser radar sensor to distance control ECU
  • Communication circuit
  • Laser radar sensor
  • Cruise control ECU (Distance control ECU)
U0235/72  ( ) Communication error from distance control ECU to laser radar sensor
P1570/73  ( ) Laser sensor malfunction
  • Laser radar sensor
P1572/75  ( ) Improper aiming of laser sensor beam axis
P0571/76  ( ) Brake switch "A" circuit
  • BRK relay
  • BRK relay circuit
  • ABS & traction actuator assy (Skid control ECU)
HINT:
(1) When DTC P1578 (69) is output, check for the DTCs on the skid control ECU in the diagnosis mode. Only when any code is output, inspect the trouble area based on following the DTC.