How To Proceed With Troubleshooting [01/2017 - ]: Procedure

VEHICLE BROUGHT TO WORKSHOP
Result

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Result:

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See step 2

CUSTOMER PROBLEM ANALYSIS

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

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Result:

See step 3

READ AND SAVE OPERATION HISTORY

NOTE:

If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history has been read out and saved, the operation history information could be lost.
The function "Read operation history" uses the current system time setting inside the Techstream and the time counter inside the controlling ECU to calculate the timings shown in the operation history. For this reason, before reading out the operation history, first make sure that the Techstream system clock is accurately set to the current time.

Read and save operation history using the Techstream.

Refer to CHECK FOR INTERMITTENT PROBLEMS [01/2017 - ]

Body Electrical > Main Body > Utility

Tester Display
Operation History

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Result:

See step 4

INSPECT AUXILIARY BATTERY

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

11 to 14 V (power switch off)

HINT:
- A simple method to determine whether the auxiliary battery is discharged is to operate the horn.
- If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding.
Check the fuses and relays.

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

Result

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Result:

See step 5

CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

Using the Techstream, check for CAN communication system DTCs.

Refer to HOW TO PROCEED WITH TROUBLESHOOTING [01/2017 - 09/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 05/2023] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [05/2023 - ]

Result

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

Result:

GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [01/2017 - 09/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 05/2023] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [05/2023 - ]

Result:

See step 6

CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

Using the Techstream, check for LIN communication system DTCs.

Refer to DTC CHECK / CLEAR [01/2017 - ]

Result

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

Result:

GO TO LIN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [01/2017 - ]

Result:

See step 7

CHECK FOR DTC*

Check for DTCs and make a note of any codes that are output.
Refer to DTC CHECK / CLEAR [01/2017 - ]

Body Electrical > Master Switch > Trouble Codes

Body Electrical > D-Door Motor > Trouble Codes

Body Electrical > P-Door Motor > Trouble Codes
Clear the DTCs.
Body Electrical > Master Switch > Clear DTCs

Body Electrical > D-Door Motor > Clear DTCs

Body Electrical > P-Door Motor > Clear DTCs

Recheck for DTCs.

Body Electrical > Master Switch > Trouble Codes

Body Electrical > D-Door Motor > Trouble Codes

Body Electrical > P-Door Motor > Trouble Codes

Result

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

Result:

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [01/2017 - ]

Result:

See step 8

PROBLEM SYMPTOMS TABLE

Refer to Problem Symptoms Table.

Refer to PROBLEM SYMPTOMS TABLE [01/2017 - ]

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 can not be simulated)	B
Fault is listed in Problem Symptoms Table	C

Result:

CHECK FOR INTERMITTENT PROBLEMS. Refer to CHECK FOR INTERMITTENT PROBLEMS [01/2017 - ]

Result:

ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE

Result:

See step 9

OVERALL ANALYSIS AND TROUBLESHOOTING*

Operation Check
Refer to OPERATION CHECK [01/2017 - ]
Terminals of ECU
Refer to TERMINALS OF ECU [01/2017 - 05/2023] , or refer to TERMINALS OF ECU [05/2023 - ]
Data List / Active Test
Refer to DATA LIST / ACTIVE TEST [01/2017 - ]
Fail-safe Chart
Refer to FAIL-SAFE CHART [01/2017 - ]

Inspection

Result

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Result:

See step 10

ADJUST, REPAIR OR REPLACE

Check if any of the door window regulators, power window regulator motor assemblies, door glass or door glass runs have been removed and reinstalled.

Result

Result	Proceed to
Any of the door window regulators, power window regulator motor assemblies, door glass or door glass runs have been removed and reinstalled.	A
The door window regulators, power window regulator motor assemblies, door glass or door glass runs have not been removed and reinstalled.	B

Result:

See step 12

Result:

See step 11

INITIALIZE POWER WINDOW CONTROL SYSTEM

Initialize the power window control system.

Refer to INITIALIZATION [01/2017 - ]

Result

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Result:

See step 12

CONFIRMATION TEST
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END