LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2005 >> RX 330 AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Dynamic Laser Cruise Control System >> Distance Control Switch Circuit >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

  1. INSPECT STEERING PAD SWITCH ASSY 
    1. Remove the steering pad switch assy.
      Fig 1: Identifying Steering Pad Switch Assy Terminals And Distance Control Switch
      G03007931Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance between terminal 4 (DIST) and 6 (ECC) of steering pad switch assy connector when distance control switch is operated.

      Standard: 

      STEERING PAD SWITCH ASSY CONNECTOR TERMINALS RESISTANCE

      Switch position Specified value
      Distance control switch is ON Below 1 Ω
      Distance control switch is OFF 10 kΩ or higher

      HINT:

      When a malfunction is detected in the distance control switch, replace the steering pad switch assy.

    1. NG: REPLACE STEERING PAD SWITCH ASSY (See  STEERING PAD SWITCH ASSY  ) 
    2. OK: GO TO NEXT STEP. 
  2. INSPECT SPIRAL CABLE SUB-ASSY 
    1. Disconnect the spiral cable sub-assy connector.
      2. Fig 2: Identifying Spiral Cable Sub-Assy Connector
      G03007932Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance between terminal A and C13 of spiral cable sub-assy.

      Standard: 

      SPIRAL CABLE SUB-ASSY TERMINALS RESISTANCE

      Terminal No. Specified value
      A-4 - C13-11 Below 1 Ω
      A-6 - C13-2 Below 1 Ω
    1. NG: REPLACE SPIRAL CABLE SUB-ASSY 
    2. OK: GO TO NEXT STEP. 
  3. CHECK WIRE HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - SPIRAL CABLE SUB-ASSY) 
    1. Check for an open or short circuit in harness and connector between the distance control ECU and the spiral cable sub-assy (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
    1. NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP. 
  4. CHECK WIRE HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSY - BODY GROUND) 
    1. Check for an open or short circuit in harness and connector between the spiral cable sub-assy and body ground (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
    1. NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 
    2. OK: GO TO NEXT STEP. 
  5. INSPECT CRUISE CONTROL ECU ASSY (DISTANCE CONTROL ECU) 
    1. Remove the cruise control ECU (distance control ECU) with the connector.
      2. Fig 3: Identifying Cruise Control ECU (Distance Control ECU) Connector
      G03007933Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch to the ON position.
    3. Measure the voltage between terminal MODE (D2-16) of the cruise control ECU (distance control ECU) and body ground, when distance control switch is operated.

      Standard: 

      CRUISE CONTROL ECU (DISTANCE CONTROL ECU) CONNECTOR TERMINALS RESISTANCE

      Switch position Specified value
      Distance control switch is ON Below 1 V
      Distance control switch is OFF 10 to 14 V
    1. NG: REPLACE CRUISE CONTROL ECU ASSY (See  CRUISE CONTROL ECU ASSY  ) 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON  PROBLEM SYMPTOMS TABLE  
scientia non olet · About LEMON Manuals