How To Proceed With Troubleshooting [12/2021 - ]: Procedure

Result

Result: 

NEXT 

See step  2

HINT: 

• In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
• Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
• The following 5 items are important points for problem analysis:

  What	Vehicle model, system name
  When	Date, time, occurrence frequency
  Where	Road conditions
  Under what conditions?	Driving conditions, weather conditions
  How did it happen?	Problem symptoms

Result

Result: 

NEXT 

See step  3

1. Measure the battery voltage.

   HINT: 

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

   Standard Voltage

   11 to 14 V (Ignition switch off)

2. Check the fuses and relays.
3. Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Using the Techstream, perform a health check.

   Result

   Result	Proceed to
   System DTCs other than DTCs related to the dynamic radar cruise control system (Radar Cruise1) and dynamic radar cruise control system (Radar Cruise 2) are not output.	A
   System DTCs other than DTCs related to the dynamic radar cruise control system (Radar Cruise1) and dynamic radar cruise control system (Radar Cruise 2) are output.	B

Result: 

B 

GO TO  DIAGNOSTIC TROUBLE CODE CHART [12/2021 - ])  DTC CHART 

Result: 

A 

See step  5

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

   HINT: 

   If more than one message is displayed, perform each inspection in the order of A, B and C.

   Result

   Result	Proceed to
   "Cruise Control Malfunction Visit Your Dealer" is displayed.	A
   One of the following warning messages is displayed: "Radar Cruise Control Unavailable See Owner's Manual" "Radar Cruise Control Unavailable"	B
   No dynamic radar cruise control system warnings are displayed.	C

Result: 

B 

See step  8

Result: 

C 

See step  11

Result: 

A 

See step  6

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

   Refer to DIAGNOSIS SYSTEM [12/2021 - 10/2022] , or refer to DIAGNOSIS SYSTEM [10/2022 - 10/2023] , or refer to DIAGNOSIS SYSTEM [10/2023 - 11/2024] , or refer to DIAGNOSIS SYSTEM [11/2024 - ]

   CAN Bus Check 

   OK

   CAN communication system is functioning normally.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO CAN COMMUNICATION SYSTEM 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

Result: 

OK 

See step  7

1. Check for DTCs.

   Powertrain > Radar Cruise1 > Trouble Codes 

   Powertrain > Radar Cruise2 > Trouble Codes 

2. Make a note of any DTCs that are output.

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result: 

B 

See step  10

Result: 

A 

See step  8

1. Using the Techstream, check for vehicle control history.

   Powertrain > Radar Cruise2 > Utility 

   Tester Display
   Vehicle Control History (RoB)

2. Record any vehicle control history that is output.

   Result

   Result	Proceed to
   Vehicle control history is not output	A
   Vehicle control history X2013, X2015, X2022, X2026 or X2028 is output	B
   Vehicle control history other than X2013, X2015, X2022, X2026 or X2028 is output	C

Result: 

A 

GO TO SYMPTOM SIMULATION 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

Result: 

B 

GO TO VEHICLE CONTROL HISTORY 

Refer to VEHICLE CONTROL HISTORY [12/2021 - ]

Result: 

C 

See step  9

1. Using the Techstream, clear the vehicle control history.

   Powertrain > Radar Cruise2 > Utility 

   Tester Display
   Vehicle Control History (RoB)

2. Recheck for vehicle control history.

   Powertrain > Radar Cruise2 > Utility 

   Tester Display
   Vehicle Control History (RoB)

   Result

   Result	Proceed to
   Vehicle control history is not output	A
   Vehicle control history is output	B

Result: 

A 

GO TO SYMPTOM SIMULATION 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

Result: 

B 

GO TO VEHICLE CONTROL HISTORY 

Refer to VEHICLE CONTROL HISTORY [12/2021 - ]

1. Clear the DTCs.

   Powertrain > Radar Cruise1 > Clear DTCs 

   Powertrain > Radar Cruise2 > Clear DTCs 

2. Reproduce the vehicle conditions that were present when the DTCs that were noted were stored.

   HINT: 

   Refer to each corresponding DTC for details on the detection conditions.

   Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2021 - ] 

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

      Refer to DTC CHECK / CLEAR [12/2021 - ] 

      Powertrain > Radar Cruise1 > Trouble Codes 

      Powertrain > Radar Cruise2 > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result: 

A 

GO TO SYMPTOM SIMULATION 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

Result: 

B 

GO TO  DIAGNOSTIC TROUBLE CODE CHART [12/2021 - ]  

HINT: 

Refer to Problem Symptoms Table.

Refer to PROBLEM SYMPTOMS TABLE [12/2021 - ] 

Result

Result: 

B 

GO TO PROBLEM SYMPTOMS TABLE 

Refer to PROBLEM SYMPTOMS TABLE [12/2021 - ] 

Result: 

A 

See step  12

1. Adjust the reflector height.

   Triangle Target: Refer to TARGET ADJUSTMENT (TRIANGLE TARGET) [12/2021 - ]

   Flat Surface Target: Refer to TARGET ADJUSTMENT (FLAT SURFACE TARGET) [12/2021 - ]

2. Place the reflector.

   Triangle Target: Refer to TARGET ADJUSTMENT (TRIANGLE TARGET) [12/2021 - ]

   Flat Surface Target: Refer to TARGET ADJUSTMENT (FLAT SURFACE TARGET) [12/2021 - ]

3. Using the Techstream, check the amount of misalignment.

   Body Electrical > Front Radar Sensor > Utility 

   Tester Display
   Front Beam Axis Misalignment Reading

   Standard

   Vertical Direction	-5 to 5 deg.
   Horizontal Direction	-0.6 to 0.6 deg.

   Result

   Result	Proceed to
   The beam axis values are within specification	A
   The beam axis values are not within specification	B

Result: 

A 

GO TO SYMPTOM SIMULATION 

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - ]

Result: 

B 

ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY 

Triangle Target: Refer to TARGET ADJUSTMENT (TRIANGLE TARGET) [12/2021 - ]

Flat Surface Target: Refer to TARGET ADJUSTMENT (FLAT SURFACE TARGET) [12/2021 - ]

Driving Adjustment: Refer to DRIVING ADJUSTMENT [12/2021 - ]