How To Proceed With Troubleshooting [05/2019 - ]: Procedure

Result

Result: 

NEXT 

See step  2

1. Interview the customer and confirm the problem.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Measure the auxiliary battery voltage with the power switch off.

   Standard voltage

   11 to 14 V

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

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, check if the CAN communication system is functioning normally.

   OK

   CAN communication system is functioning normally.

   HINT: 

   Refer to CAN Bus Check in CAN Communication System.

   Refer to DIAGNOSIS SYSTEM [05/2019 - 10/2019] , or refer to DIAGNOSIS SYSTEM [10/2019 - 07/2020] , or refer to DIAGNOSIS SYSTEM [07/2020 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - ] 

Result: 

OK 

See step  5

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [05/2019 - ] 

   Body Electrical > Road Sign Assist > Trouble Codes 

2. Make a note of the output DTCs.

   Result

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

Result: 

B 

See step  7

Result: 

A 

See step  6

1. Check for vehicle control history and note any codes that are output.

   Refer to VEHICLE CONTROL HISTORY [05/2019 - ]

   Body Electrical > Road Sign Assist > Utility 

   Tester Display
   Vehicle Control History (RoB)

2. Record the vehicle control history.

   Result

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

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - 10/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2019 - 07/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - ] 

Result: 

B 

See step  8

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [05/2019 - ] 

   Body Electrical > Road Sign Assist > Clear DTCs 

2. Reproduce the detection conditions of the recorded DTC.

   HINT: 

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

   Refer to DIAGNOSTIC TROUBLE CODE CHART [05/2019 - ] 

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

      Refer to DTC CHECK / CLEAR [05/2019 - ] 

      Body Electrical > Road Sign Assist > Trouble Codes 

   Result

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

Result: 

A 

See step  6

Result: 

B 

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [05/2019 - ]  

1. Clear the vehicle control history.

   Refer to VEHICLE CONTROL HISTORY [05/2019 - ]

   Body Electrical > Road Sign Assist > Utility 

   Tester Display
   Vehicle Control History (RoB)

2. Recheck for vehicle control history.
   1. Check if the following vehicle control history is output.

      Refer to VEHICLE CONTROL HISTORY [05/2019 - ]

      Body Electrical > Road Sign Assist > 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 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - 10/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2019 - 07/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - ] 

Result: 

B 

GO TO VEHICLE CONTROL HISTORY. Refer to  VEHICLE CONTROL HISTORY [05/2019 - ]