Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000WPC3
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 -           ]
Title: NETWORKING: LIN COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2016 - 2020 MY Sienna [12/2015 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the LIN communication system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP
NEXT

2.

INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage.

Standard voltage:

11 to 14 V

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

NEXT

3.

INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, inspect the CAN communication function to ensure there are no malfunctions in the communication system

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: DTC CHECK / CLEAR

Result

Proceed to

No DTCs output

A

DTC is output

B
B

GO TO CAN COMMUNICATION SYSTEM 2016 MY Sienna [12/2015 - 08/2016]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2017 MY Sienna [08/2016 - 11/2017]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2018 MY Sienna [11/2017 - 08/2018]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2019 - 2020 MY Sienna [08/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

A

4.

CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Using the Techstream, inspect the LIN communication function to ensure there are no malfunctions in the communication system.

Click here 2016 - 2017 MY Sienna [12/2015 - 11/2017]; NETWORKING: LIN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2018 - 2020 MY Sienna [11/2017 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

Result

Proceed to

DTC is not output

A

DTC is output

B
B

GO TO DIAGNOSTIC TROUBLE CODE CHART 2016 - 2017 MY Sienna [12/2015 - 11/2017]; NETWORKING: LIN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART 2018 - 2020 MY Sienna [11/2017 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: DIAGNOSTIC TROUBLE CODE CHART

A

5.

PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table.

Click here 2016 MY Sienna [12/2015 - 08/2016]; NETWORKING: LIN COMMUNICATION SYSTEM: PROBLEM SYMPTOMS TABLE 2017 - 2020 MY Sienna [08/2016 -        ]; NETWORKING: LIN COMMUNICATION 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 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: DATA LIST / ACTIVE TEST

(b) Terminals of ECU

Click here 2016 MY Sienna [12/2015 - 08/2016]; NETWORKING: LIN COMMUNICATION SYSTEM: TERMINALS OF ECU 2017 MY Sienna [08/2016 - 11/2017]; NETWORKING: LIN COMMUNICATION SYSTEM: TERMINALS OF ECU 2018 - 2020 MY Sienna [11/2017 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM: TERMINALS OF ECU

NEXT

7.

ADJUST, REPAIR OR REPLACE
NEXT

END