LEXUS PARKING ASSIST-SENSOR SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

VEHICLE BROUGHT TO WORKSHOP

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CUSTOMER PROBLEM ANALYSIS

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INSPECT BATTERY VOLTAGE

1. Measure the battery voltage with the engine switch off.

   Standard voltage
   11 to 14 V

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

   
   

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CHECK CAN COMMUNICATION SYSTEM*

1. Use the GTS to check if the CAN Communication System is functioning normally.

   
   

   • for LHD: Click here

   • for RHD: Click here

   Result

   Result	Proceed to
   CAN communication system DTC is not output	A
   CAN communication system (for LHD) DTC is output	B
   CAN communication system (for RHD) DTC is output	C

   
   

   B

   Go to CAN COMMUNICATION SYSTEM Click here

   C

   Go to CAN COMMUNICATION SYSTEM Click here

   A

PROBLEM SYMPTOM CONFIRMATION

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CHECK DTC*

1. Check for DTCs Click here.

   Result

   Result	Proceed to
   DTC is output	A
   DTC is not output (Problem symptom does not occur)	B
   DTC is not output (Problem symptom occurs)	C

   
   

   B

   Go to step 8

   C

   Go to step 9

   A

DIAGNOSTIC TROUBLE CODE CHART

1. Refer to Diagnostic Trouble Code Chart Click here.

   
   

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   Go to step 11

SYMPTOM SIMULATION

1. Refer to Symptom Simulation Click here.

   
   

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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

   
   

   B

   ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE

   A

OVERALL ANALYSIS AND TROUBLESHOOTING

1. Operation Check Click here.

2. Terminals of ECU Click here.

3. Data List / Active Test Click here.

   
   

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CIRCUIT INSPECTION*

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IDENTIFICATION OF PROBLEM

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REPAIR OR REPLACE

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CONFIRMATION TEST*

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