Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000WPRU
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 -           ]
Title: LIGHTING (INT): LIGHTING SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2016 - 2020 MY Sienna [12/2015 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

HINT:

  • Use these procedures to troubleshoot the lighting system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP
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2.

CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK
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3.

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

NEXT

4.

CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the Techstream to check if the CAN communication system is functioning normally.

Result

Proceed to

CAN communication system DTC is not output

A

CAN communication system DTC is output

B
B

GO TO CAN COMMUNICATION SYSTEM
A

5.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here 2016 MY Sienna [12/2015 - 08/2016]; LIGHTING (INT): LIGHTING SYSTEM: PROBLEM SYMPTOMS TABLE 2017 - 2020 MY Sienna [08/2016 -        ]; LIGHTING (INT): LIGHTING SYSTEM: PROBLEM SYMPTOMS TABLE

Result

Proceed to

Fault is not listed in problem symptoms table

A

Fault is listed in problem symptoms table

B
B

GO TO STEP 7

A

6.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; LIGHTING (INT): LIGHTING SYSTEM: DATA LIST / ACTIVE TEST

(b) Terminals of ECU.

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; LIGHTING (INT): LIGHTING SYSTEM: TERMINALS OF ECU

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7.

ADJUST, REPAIR OR REPLACE
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8.

CONFIRMATION TEST
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END