DYNAMIC RADAR CRUISE CONTROL SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

PROCEDURE

1. VEHICLE BROUGHT TO WORKSHOP

   Result
   Proceed to NEXT

   
   

   NEXT

2. 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

   
   

   NEXT

3. INSPECT MILLIMETER WAVE RADAR SENSOR ASSEMBLY*

   
   

   1. Adjust the reflector height.

      Click here

   2. Place the reflector.

      Click here

   3. Connect the GTS to the DLC3.

   4. Turn the ignition switch to ON.

   5. Turn the GTS on.

   6. Turn the cruise control switch (ON/OFF) on.

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

      
      Body Electrical > Pre-Collision 2 > Utility

      Tester Display
      Front Beam Axis Misalignment Reading

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

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

      
      Body Electrical > Pre-Collision 2 > Utility

      Tester Display
      Front Beam Axis Offset Reading

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

       Result
       Proceed to NEXT

   
   

   NEXT

4. CHECK CAN COMMUNICATION SYSTEM*

   
   

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

      OK
      CAN communication system is functioning normally.

      Tech Tips

      Refer to CAN Bus Check for the CAN communication system.

      for LHD with Central Gateway ECU: Click here

      for RHD with Central Gateway ECU: Click here

      Result
      Proceed to OK NG

   
   

   NG

   GO TO CAN COMMUNICATION SYSTEM for LHD with Central Gateway ECU: Click here GO TO CAN COMMUNICATION SYSTEM for RHD with Central Gateway ECU: Click here

   OK

5. CHECK FOR DTCs*

   Refer to DTC Check / Clear.

   Click here

   
   

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

      
      

      1. for 2AD-FHV, 2AD-FTV:

         
         Powertrain > Radar Cruise1 > Trouble Codes
         Powertrain > Radar Cruise2 > Trouble Codes

      2. for 2AR-FE, 3ZR-FE, 3ZR-FAE:

         
         Powertrain > Radar Cruise1 > Trouble Codes
         Powertrain > Radar Cruise2 > Trouble Codes

      3. for 2WW:

         
         Powertrain > Cruise Control > Trouble Codes
         Powertrain > Radar Cruise2 > Trouble Codes

   2. Clear the DTCs.

      
      

      1. for 2AD-FHV, 2AD-FTV:

         
         Powertrain > Radar Cruise1 > Clear DTCs
         Powertrain > Radar Cruise2 > Clear DTCs

      2. for 2AR-FE, 3ZR-FE, 3ZR-FAE:

         
         Powertrain > Radar Cruise1 > Clear DTCs
         Powertrain > Radar Cruise2 > Clear DTCs

      3. for 2WW:

         
         Powertrain > Cruise Control > Clear DTCs
         Powertrain > Radar Cruise2 > Clear DTCs

   3. Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions indicated by the DTCs.

      
      

      1. for 2AD-FHV, 2AD-FTV:

         
         Powertrain > Radar Cruise1 > Trouble Codes
         Powertrain > Radar Cruise2 > Trouble Codes

      2. for 2AR-FE, 3ZR-FE, 3ZR-FAE:

         
         Powertrain > Radar Cruise1 > Trouble Codes
         Powertrain > Radar Cruise2 > Trouble Codes

      3. for 2WW:

         
         Powertrain > Cruise Control > Trouble Codes
         Powertrain > Radar Cruise2 > Trouble Codes

      Result
      Result Proceed to DTC does not reoccur A DTC reoccurs B

   
   

   B

   GO TO DTC CHART Click here

   A

6. PROBLEM SYMPTOMS TABLE

   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 8 Click here

   A

7. OVERALL ANALYSIS AND TROUBLESHOOTING*

   
   

   1. Terminals of ECU

      Click here

   2. Data List / Active Test

      Click here

      Result
      Proceed to NEXT

   
   

   NEXT

8. ADJUST, REPAIR OR REPLACE

   Note

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

   Click here

   Result
   Proceed to NEXT

   
   

   NEXT

9. CONFIRMATION TEST

   Result
   Proceed to NEXT

   
   

   NEXT

   END