How To Proceed With Troubleshooting [09/2023 - 12/2023]: Procedure

Result

Result: 

NEXT 

See step  2

Result

Result: 

NEXT 

See step  3

1. Measure the auxiliary battery voltage.

   Standard Voltage

   12 V or higher (ignition switch off)

   HINT: 

   If the auxiliary battery voltage is below 12 V, recharge or replace the auxiliary battery.

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

   HINT: 

   Refer to Communication Bus Check in CAN Communication System.

   Refer to DIAGNOSIS SYSTEM [09/2023 - ]

   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 [09/2023 - ] 

Result: 

OK 

See step  5

1. Check and record DTCs and Freeze Frame Data.

   Body Electrical > Sub Battery System > Trouble Codes 

2. If the DTCs is output, record it.

   Result

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

Result: 

B 

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2023 - 12/2023]  

Result: 

A 

See step  6

1. Check and record Vehicle Control History (RoB).

   Body Electrical > Sub Battery System > Utility 

   Tester Display
   Vehicle Control History (RoB)

2. If the vehicle control history is output, record it.

   Result

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

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2023 - ] 

Result: 

B 

GO TO VEHICLE CONTROL HISTORY (ROB). Refer to  VEHICLE CONTROL HISTORY (RoB) [09/2023 - ]