PRE-COLLISION 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 AND SYMPTOM CHECK

   Pre-collision 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.) * Describe the conditions immediately after the occurrence in as much detail as possible.		Conditions of Occurrence Diagram
   		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 / Foreign matter (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-collision 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		Forward recognition camera
   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 was 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	Forward recognition camera			Accident history	Y / N
   		Millimeter wave radar sensor assembly			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: *: As information regarding the item is important for the investigation, make sure to obtain the item if permission is given by the customer.

   Result
   Proceed to NEXT

   
   
   • NEXTClick here
3. Click here

   INSPECT BATTERY VOLTAGE

   
   

   1. Measure the battery voltage.

      Standard Voltage
      11 to 14 V

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

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
4. Click here

   INSPECT MILLIMETER WAVE RADAR SENSOR ASSEMBLY (BEAM AXIS MISALIGNMENT READING)*

   
   

   1. Adjust the reflector height.

      Click here

   2. Place the reflector.

      Click here

   3. Connect the GTS to the DLC3.

   4. Turn the engine switch on (IG).

   5. Turn the GTS on.

   6. Turn the cruise control main switch on.

   7. Enter the following menus: Body Electrical / Pre-Collision 2 / Utility / Front Beam Axis Misalignment Reading.

   8. Check the amount of misalignment and make a note.

      
      
      1. Body Electrical > Pre-Collision 2 > Utility

         Tester Display
         Front Beam Axis Misalignment Reading

      2. 
         
         1. 
            
      3. 
         
         10. 
             

   9. Enter the following menus: Body Electrical / Pre-Collision 2 / Utility / Front Beam Axis Offset Reading.

   10. Check the amount of misalignment and make a note.

       
       
       1. Body Electrical > Pre-Collision 2 > Utility

          Tester Display
          Front Beam Axis Offset Reading

       2. 
          
          1. 
             
       3. 
          
          10. 
              

   11. Calculate the "Dealership Axis Offset Angle (with On-line Calibration Angle)" using the values "Front Beam Axis Misalignment Reading" and "Front Beam Axis Offset Reading".

       
       

       1. "Dealership Axis Offset Angle (with On-line Calibration Angle)" = "Front Beam Axis Misalignment Reading" - "Front Beam Axis Offset Reading"

          Standard
          Dealership Axis Offset Angle (with On-line Calibration Angle)
          Vertical -2.2 to 1.6 deg. Horizontal -0.6 to 0.6 deg.

       Result
       Result Proceed to The dealership axis offset angle (with on-line calibration angle) is within the specified range. A The dealership axis offset angle (with on-line calibration angle) is not within the specified range. B

   
   
   • AClick here
   • BClick here
5. Click here

   CHECK CAN COMMUNICATION SYSTEM*

   
   

   1. Using the GTS, check if the CAN communication system is functioning normally.

      Tip:

      Refer to CAN Bus Check in CAN Communication System.

      Click here

      OK
      CAN communication system is functioning normally.

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     GO TO CAN COMMUNICATION SYSTEMClick here

6. Click here

   INSPECT WARNING LIGHT

   
   

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

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

   
   
   • AClick here
   • B

     GO TO MALFUNCTIONING SYSTEM

7. Click here

   INSPECT MULTI-INFORMATION DISPLAY

   
   

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

      Result
      Result Proceed to "Pre-Collision System Malfunction Visit Your Dealer" is displayed A Any of the following messages is displayed: "Pre-Collision System Unavailable" "Pre-Collision System Unavailable Clean Sensor" "Front Camera Unavailable" "Front Camera Vision Blocked Clean and Demist Windshield" B Warning message is not displayed C

   
   
   • AClick here
   • B

     GO TO PROBLEM SYMPTOMS TABLEClick here

   • C

     CHECK CONDITIONS WHEN PRE-COLLISION SYSTEM DID NOT OPERATEClick here

8. Click here

   CHECK FOR DTCs* (PRE-COLLISION SYSTEM)

   Tip:

   Refer to DTC Check / Clear.

   Click here

   
   

   1. Check for DTCs and note any codes that are output.

      
      
      1. Body Electrical > Pre-Collision 2 > Trouble Codes
      2. 
         
      3. 
         

   2. Clear the DTCs.

      
      
      1. Body Electrical > Pre-Collision 2 > Clear DTCs
      2. 
         
      3. 
         

   3. Recheck for DTCs.

      
      

      1. Attempt to duplicate the malfunction and check if the DTCs are output again.

         
         
         1. Body Electrical > Pre-Collision 2 > Trouble Codes
         2. 
            
         3. 
            

      Result
      Result Proceed to Malfunction is duplicated but DTCs are not output A Malfunction cannot be duplicated and DTCs are not output B DTCs are output C

   
   
   • AClick here
   • B

     GO TO SYMPTOM SIMULATIONClick here

   • C

     GO TO DTC CHARTClick here

9. Click here

   PROBLEM SYMPTOMS TABLE

   Tip:

   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 12

10. Click here

    OVERALL ANALYSIS AND TROUBLESHOOTING*

    
    

    1. Terminals of ECU

       Click here

    2. Data List / Active Test

       Click here

       Result
       Proceed to NEXT

    
    
    • NEXTClick here
11. Click here

    ADJUST, REPAIR OR REPLACE

    Note:

    When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed.

    Click here

    Result
    Proceed to NEXT

    
    
    • NEXTClick here
12. Click here

    CONFIRMATION TEST

    Result
    Proceed to NEXT

    
    
    • NEXT

      END

13. Click here

    ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY

    
    

    1. Perform millimeter wave radar sensor assembly adjustment.

       Click here

       Result
       Proceed to NEXT

    
    
    • NEXTClick here

      GO TO STEP 5