LEXUS PARKING ASSIST-SENSOR SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
2. Click here

   CUSTOMER PROBLEM ANALYSIS

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
3. Click here

   INSPECT AUXILIARY BATTERY VOLTAGE

   
   

   1. Measure the auxiliary battery voltage with the power switch off.

      Standard Voltage
      11 to 14 V

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

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
4. Click here

   CHECK CAN COMMUNICATION SYSTEM*

   
   

   1. Use the GTS to check if the CAN communication system is functioning normally (w/ Central Gateway ECU) (Click here).

   2. Use the GTS to check if the CAN communication system is functioning normally (w/o Central Gateway ECU) (Click here).

      Result
      Result Proceed to CAN communication system DTCs are not output A CAN communication system DTCs are output (w/ Central Gateway ECU) B CAN communication system DTCs are output (w/o Central Gateway ECU) C

   
   
   • AClick here
   • B

     GO TO CAN COMMUNICATION SYSTEM (w/ Central Gateway ECU) (Click here)

   • C

     GO TO CAN COMMUNICATION SYSTEM (w/o Central Gateway ECU) (Click here)

5. Click here

   PROBLEM SYMPTOM CONFIRMATION

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
6. Click here

   CHECK DTC*

   
   

   1. Check for DTCs (Click here).

      Result
      Result Proceed to DTCs are output A DTCs are not output (Problem symptom does not occur) B DTCs are not output (Problem symptom occurs) C

   
   
   • AClick here
   • BClick here
   • CClick here

     GO TO STEP 9

7. Click here

   DIAGNOSTIC TROUBLE CODE CHART

   
   

   1. Refer to Diagnostic Trouble Code Chart (Click here).

      Result
      Proceed to NEXT

   
   
   • NEXTClick here

     GO TO STEP 11

8. Click here

   SYMPTOM SIMULATION

   
   

   1. Refer to Symptom Simulation (Click here).

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
9. Click here

   PROBLEM SYMPTOMS TABLE

   
   

   1. Refer to Problem Symptoms Table (Click here).

      Result
      Result Proceed to Fault is not listed in Problem Symptoms Table A Fault is listed in Problem Symptoms Table B

   
   
   • AClick here
   • BClick here

     GO TO STEP 11

10. Click here

    OVERALL ANALYSIS AND TROUBLESHOOTING*

    
    

    1. Operation Check (Click here)

    2. Terminals of ECU (Click here)

    3. Data List / Active Test (Click here)

       Result
       Proceed to NEXT

    
    
    • NEXTClick here
11. Click here

    CIRCUIT INSPECTION*

    Result
    Proceed to NEXT

    
    
    • NEXTClick here
12. Click here

    IDENTIFICATION OF PROBLEM

    Result
    Proceed to NEXT

    
    
    • NEXTClick here
13. Click here

    REPAIR OR REPLACE

    Result
    Proceed to NEXT

    
    
    • NEXTClick here
14. Click here

    CONFIRMATION TEST*

    Result
    Proceed to NEXT

    
    
    • NEXT

      END