PRE-CRASH SAFETY SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use the following procedure to troubleshoot the pre-crash safety system.

  • *: Use the GTS.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK

    Pre-crash Safety System Customer Problem Analysis Vehicle Brought to Workshop
    Year Month Day
    Dealer name Person in charge at headquarters Telephone number
    Shop name Person in charge at shop
    Frame type Frame No. First Registered Year Total distance traveled
    Customer Concerns (Include details) Does not operate
    Operates abnormally
    Date of malfunction occurrence (Since when) Year Month Day Approx. Time
    Date of last inspection Year Month Day
    Frequency of problem symptoms Once / Occasionally (times per day, times per month) / Every time certain conditions are met ( )
    Weather Sunny / Cloudy / Rain / Snow (Amount of snowfall cm) / Other ( ) Vehicle speed Approximately ( ) km/h
    Place

    Prefecture

    (Attach a map if possible)
    Driving path (where vehicle turned, where driver attempted to drive to, etc.) (Explain conditions before collision as much as possible)

    Conditions of Occurrence Diagram

    A00327E
    A00325VE01

    Surrounding road conditions

    Describe whether there were any billboards, metal objects on the road (manholes), guardrails, pipes, cat's eyes, gate bars, etc.
    Urban area / Suburbs / Highway / Other ( ) Road surface conditions Temperature About °C ( °F)
    Direction of travel Straight / Right turn / Left turn / Right curve / Left curve Snow wall(s) Y / N
    Driving lane Number of lanes on one side (lanes) / ( ) lane(s) from left Backlighting Y / N
    Condition of external area around detection sensor No foreign matter adhesion / Foreign matter adhesion (water, snow, ice, other)
    Additional information about condition of vehicle exterior (other than above)
    DTC First Time (when vehicle brought to workshop)
    Second Time (after clearing DTC)
    Status of operation switch Pre-crash safety system cancel switch Far / Medium / Near / OFF VSC OFF switch ON / OFF

    Serial number of main part

    * Fill in when removing, installing or replacing part

    		 Pre-crash safety city sensor
    Describe the items to the right in as much detail as possible. Driver operation Accelerator pedal operated / Brake pedal operated / Steering wheel operated Time elapsed after engine is started Approximately ( ) minutes
    Tire pressure inspection result Front: LH ( ) kPa RH ( ) kPa Standard ( ) kPa
    Rear: LH ( ) kPa RH ( ) kPa Standard ( ) kPa
    Sensor optical axis inspection result Pre-crash safety city sensor Accident history Y / N
    Vehicle modified Y ( ) / N
    Items installed or attached around windshield glass

    Drive recorder* / Radar detector / Navigation unit (genuine/non-genuine) / ETC / Charms or toys / Other:

    *: Since this device holds information valuable to the investigation, make sure to retrieve this device if permission is granted by the customer.
    Result
    Proceed to
    NEXT

    NEXT

  3. INSPECT WARNING LIGHT


    1. Check the condition of the warning lights on the combination meter assembly.

      Result
      Result Proceed to
      Only the PCS OFF warning light is blinking or illminated A
      The PCS OFF warning light is not blinking or illminated
      The PCS OFF warning light and other warning lights are illuminated or blinking B

    B

    Inspect the system indicated by the warning light.

    A

  4. INSPECT MULTI-INFORMATION DISPLAY


    1. Check if a pre-crash safety system warning message is displayed on the multi-information display in the combination meter assembly.

      Result
      Result Proceed to
      "Check Pre-Crash Safety." is displayed A
      "Pre-Crash Safety temporarily not available.", "Front sensor systems are temporarily unavailable due to inappropriate temp. Wait a moment." or "Front sensor systems are temporarily unavailable due to blocked vision. Clean windshield." is displayed. B
      Warning message is not displayed C

    B

    GO TO STEP 7 Click here

    C

    CHECK CONDITIONS WHEN PRE-CRASH SAFETY SYSTEM DID NOT OPERATE Click here

    A

  5. CHECK FOR DTCs*


    1. Clear the DTCs.

      Click here


      Chassis > PCS/LDA/RSA/LVN > Clear DTCs

    2. Check for DTCs.

      Click here


      Chassis > PCS/LDA/RSA/LVN > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output (symptoms can be confirmed or reproduced) A
      DTCs are not output (symptoms cannot be confirmed or reproduced) B
      DTCs are output C

    B

    GO TO STEP 8 Click here

    C

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  6. READ VALUE USING GTS


    1. Read the Data List according to the display on the GTS.

      Click here


      Chassis > PCS/LDA/RSA/LVN > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      History of Blockage Displays whether there are camera or laser sensor obstruction history ON or OFF

      ON: Pre-crash safety city sensor (camera or laser sensor) obstruction history exists

      OFF: Pre-crash safety city sensor (camera or laser sensor) obstruction history does not exist

      		 -
      History of Low Voltage Displays whether there is low voltage history ON or OFF

      ON: Pre-crash safety city sensor low voltage history exists

      OFF: Pre-crash safety city sensor low voltage history does not exist

      		 -
      History of High Voltage Displays whether there is high voltage history ON or OFF

      ON: Pre-crash safety city sensor high voltage history exists

      OFF: Pre-crash safety city sensor high voltage history does not exist

      		 -
      History of Low Temperature Displays whether there is low temperature history ON or OFF

      ON: Pre-crash safety city sensor low temperature history exists

      OFF: Pre-crash safety city sensor low temperature history does not exist

      		 -
      History of High Temperature Displays whether there is high temperature history ON or OFF

      ON: Pre-crash safety city sensor high temperature history exists

      OFF: Pre-crash safety city sensor high temperature history does not exist

      		 -
      Blockage Status Displays whether there is a camera obstruction malfunction ON or OFF

      ON: Pre-crash safety city sensor (camera) obstructed

      OFF: Pre-crash safety city sensor (camera) not obstructed

      		 -
      Low Voltage Status Displays whether there is a low voltage malfunction ON or OFF

      ON: Pre-crash safety city sensor low voltage malfunction exists

      OFF: Pre-crash safety city sensor low voltage malfunction does not exist

      		 -
      High Voltage Status Displays whether there is a high voltage malfunction ON or OFF

      ON: Pre-crash safety city sensor high voltage malfunction exists

      OFF: Pre-crash safety city sensor high voltage malfunction does not exist

      		 -
      Low Temperature Status Displays whether there is a low temperature malfunction ON or OFF

      ON: Pre-crash safety city sensor low temperature malfunction exists

      OFF: Pre-crash safety city sensor low temperature malfunction does not exist

      		 -
      High Temperature Status Displays whether there is a high temperature malfunction ON or OFF

      ON: Pre-crash safety city sensor high temperature malfunction exists

      OFF: Pre-crash safety city sensor high temperature malfunction does not exist

      		 -
      Lidar Blockage Status Displays whether laser sensor is dirty ON or OFF

      ON: Dirt on pre-crash safety city sensor (laser sensor)

      OFF: No dirt on pre-crash safety city sensor (laser sensor)

      		 -
      Result
      Result Proceed to
      Malfunction history exists A
      No malfunction history exists B

    B

    GO TO STEP 8 Click here

    A

  7. 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

    GO TO STEP 9 Click here

    A

  8. OVERALL ANALYSIS AND TROUBLESHOOTING*


    1. Terminals of ECU

      Click here

    2. Data List / Active Test

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  9. ADJUST, REPAIR OR REPLACE

    Note

    Adjustment of the pre-crash safety city sensor is required when the pre-crash safety city sensor is replaced with a new one or if it is removed and reinstalled.

    Click here

    Result
    Proceed to
    NEXT

    NEXT

  10. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END

  11. CHECK CONDITIONS WHEN PRE-CRASH SAFETY SYSTEM DID NOT OPERATE


    1. Check if the problem occurred under any of the following conditions.

      Conditions under which pre-crash safety system may not have been able to operate:
      The vehicle was being driven on roads with sharp bends or uneven surfaces.
      A vehicle suddenly crossed in front of the vehicle, such as at an intersection.
      A vehicle suddenly cut in front of the vehicle.
      The vehicle was skidding.
      The front part of the vehicle was raised or lowered.
      The windshield glass was dirty or covered with raindrops, condensation, ice, snow, etc.
      The sensor was misaligned due to a strong impact being applied to the sensor, etc.
      The preceding vehicle was a poor reflector of laser (the rear part of the vehicle was lowered, very dirty, etc.)
      A very bright light, such as the sun or headlights of oncoming traffic, was shining directly into the front sensor.
      The vehicle was being driven in inclement weather, such as heavy rain, fog, snow or a sandstorm.
      The vehicle was being driven in a dark area, such as a tunnel, or at night.
      Result
      Result Proceed to
      Problem occurred under condition above A
      Problem did not occur under condition above B

    A

    GO TO STEP 5 Click here

    B

    END