How To Proceed With Troubleshooting [06/2018 - 08/2021]: 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. Read and save operation history using the Techstream.

   Refer to CHECK FOR INTERMITTENT PROBLEMS [06/2018 - 08/2021] 

   Body Electrical > Main Body > Utility 

   Tester Display
   Operation History

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

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  5

1. Using the Techstream, check for CAN communication system DTCs.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]

   Result

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

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

Result: 

A 

See step  6

1. Using the Techstream, check for LIN communication system DTCs.

   Refer to DTC CHECK / CLEAR [06/2018 - ]

   Result

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

Result: 

B 

GO TO LIN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ] 

Result: 

A 

See step  7

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [06/2018 - 08/2021] 

   Body Electrical > Back Door > Trouble Codes 

2. Clear the DTCs.

   Body Electrical > Back Door > Clear DTCs 

3. Recheck for DTCs.

   Body Electrical > Back Door > Trouble Codes 

   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 [06/2018 - 08/2021]  

Result: 

A 

See step  8

1. Refer to Problem Symptoms Table.

   Refer to PROBLEM SYMPTOMS TABLE [06/2018 - 08/2021] 

   Result

   Result	Proceed to
   Fault is not listed in Problem Symptoms Table (Fault can be simulated)	A
   Fault is not listed in Problem Symptoms Table (Fault cannot be simulated)	B
   Fault is listed in Problem Symptoms Table	C

Result: 

B 

CHECK FOR INTERMITTENT PROBLEMS. Refer to  CHECK FOR INTERMITTENT PROBLEMS [06/2018 - 08/2021]  

Result: 

C 

REPAIR OR REPLACE 

Result: 

A 

See step  9

1. Operation Check

   Refer to OPERATION CHECK [06/2018 - 09/2022] 

2. Terminals of ECU

   Refer to TERMINALS OF ECU [06/2018 - 08/2021] 

3. Data List / Active Test

   Refer to DATA LIST / ACTIVE TEST [06/2018 - 08/2021] 

4. Inspection

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  10

Result

Result: 

NEXT 

See step  11

Result

Result: 

NEXT 

END