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Home >> Toyota >> 2005 >> Avalon XLS >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Dynamic Laser Cruise Control System - Diagnostics >> Cruise Control Switch Circuit >> Inspection Procedure

Inspection Procedure

  1. READ VALUE OF HAND-HELD TESTER 
    1. Connect the hand-held tester to the DLC3.
    2. Turn the ignition switch on (IG).
    3. According to the display on the tester, read the "DATA LIST".
      Fig 1: Data List Of Cruise Control Switch
      G02977754Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      CC (ECM): 

      Fig 2: Data List Of CC (ECM) Chart
      G02977755Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: When the cruise control main switch is operated, the normal conditions listed above are shown on the display. 

      Result: 

      DATA LIST OF CC (ECM)

      OK A
      NG (All items are defective) B
      NG (One to three items are defective) C
    1. B: Go to step 2 
    2. C: REPLACE CRUISE CONTROL MAIN SWITCH ASSY (SEE  REPLACEMENT  ) 
    3. A : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE  PROBLEM SYMPTOMS TABLE  ) 
  2. INSPECT CRUISE CONTROL MAIN SWITCH ASSY 
    1. Disconnect the cruise control main switch connector.
    2. Measure the resistance according to the value (s) in CRUISE CONTROL MAIN SWITCH ASSY  .

      Standard: 

      CRUISE CONTROL MAIN SWITCH ASSY

      Switch condition Tester connection Resistance
      Neutral 1 - 3 10 kΩ or higher
      RES/+ 1 - 3 210 to 270 Ω
      SET/- 1 - 3 560 to 700 Ω
      CANCEL 1 - 3 1,380 to 1,700 Ω
      Main Switch OFF 1 - 3 10 kΩ or higher
      Main Switch ON 1 - 3 Below 1 Ω
      Fig 3: Inspecting Cruise Control Main Switch Assy
      G02977756Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE CRUISE CONTROL MAIN SWITCH ASSY (SEE  REPLACEMENT  ) 
    2. OK: Go to next step. 
  3. INSPECT SPIRAL CABLE SUB-ASSY 
    1. Disconnect the spiral cable sub-assy connector.
    2. Measure the resistance according to the value(s) in SPIRAL CABLE SUB-ASSY  .

      Standard: 

      SPIRAL CABLE SUB-ASSY

      Terminal No. Specified value
      A-1 - D15-7 Below 1 Ω
      A-3 - D15-1 Below 1 Ω
      A-4 - D15-2 Below 1 Ω
      Fig 4: Inspecting Spiral Cable Sub-Assy
      G02977757Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPLACE SPIRAL CABLE SUB-ASSY (SEE  REPLACEMENT  ) 
    2. OK: Go to next step. 
  4. CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSY - ECM) 
    1. Measure the resistance according to the value(s) in SPIRAL CABLE SUB-ASSY - ECM  .

      Standard: 

      SPIRAL CABLE SUB-ASSY - ECM

      Tester connection Condition Specification
      Spiral cable (D15-1) -CCS (D41-2) Always Below 1 Ω
      CCS (D41-2) -Body ground Always 10 kΩ or higher
      Spiral cable (D15-2) -E1 (B47-1) Always Below 1 Ω
      Spiral cable (D15-7) -Body ground Always 10 kΩ or higher
      Spiral cable (D15-7) -CCHG (D41-4) Always Below 1 Ω
      CCHG (D41-4) -Body ground Always 10 kΩ or higher
      Fig 5: Checking Harness And Connector (Spiral Cable Sub-Assy - ECM) (1 Of 2)
      G02977758Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 6: Checking Harness And Connector (Spiral Cable Sub-Assy - ECM) (2 Of 2)
      G02977759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: REPLACE ECM (SEE  REPLACEMENT  ) 
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