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DYNAMIC RADAR CRUISE CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

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Tip:

  • Use these procedures to troubleshoot the dynamic radar cruise control system.

  • *: Use the intelligent tester.


  1. Click here

    VEHICLE BROUGHT TO WORKSHOP


    • NEXT
  2. Click here

    INSPECT AUXILIARY BATTERY VOLTAGE

    Standard voltage
    11 to 14 V

    If the voltage is below 11 V, replace or recharge the auxiliary battery before proceeding.


    • NEXT
  3. Click here

    CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*


    1. Use the intelligent tester to check if the CAN communication system is functioning normally.

      Table 1. Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output (for LHD) B
      CAN DTC is output (for RHD) C

      • B
      • Go to CAN COMMUNICATION SYSTEM (see pageClick here)
      • C
      • Go to CAN COMMUNICATION SYSTEM (see pageClick here)
      • A
  4. Click here

    CHECK FOR DTC*


    1. Clear the DTC (see pageClick here).

    2. Recheck for DTC (see pageClick here).

      Table 2. Result
      Result Proceed to
      DTC is not output A
      DTC is output B

      • B
      • Go to DIAGNOSTIC TROUBLE CODE CHART (see pageClick here)
      • A
  5. Click here

    PROBLEM SYMPTOMS TABLE


    1. Refer to the problem symptoms table (see pageClick here).

      Table 3. Result
      Result Proceed to
      Fault is not listed in problem symptoms table A
      Fault is listed in problem symptoms table B

      • B
      • Go to step 7
      • A
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    OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Operation Check (see pageClick here).

    2. Terminals of ECU (see pageClick here).

    3. Data List / Active Test (see pageClick here).


      • NEXT
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    ADJUST, REPAIR OR REPLACE

    Note:

    • If the driving support ECU has been replaced, turn the power switch OFF → ON (IG) for 10 seconds or more → OFF to perform the initialization.

    • When the front millimeter wave radar sensor is replaced with a new one, adjustment of the radar sensor beam axis must be performed (see pageClick here).


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  8. Click here

    CONFIRMATION TEST


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    • END