Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000WPEM
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 -           ]
Title: STEERING COLUMN: STEERING LOCK SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2016 - 2020 MY Sienna [12/2015 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedures to troubleshoot the steering lock system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP
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2.

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

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

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3.

CHECK DTC*

(a) Check for DTCs and make a note of any codes that are output.

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; STEERING COLUMN: STEERING LOCK SYSTEM: DTC CHECK / CLEAR

(b) Clear the DTCs

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; STEERING COLUMN: STEERING LOCK SYSTEM: DTC CHECK / CLEAR

(c) Recheck for DTCs 2016 - 2020 MY Sienna [12/2015 -        ]; STEERING COLUMN: STEERING LOCK SYSTEM: DTC CHECK / CLEAR .Based on the DTCs output above, try to cause the output of the same wireless door lock control system DTC, LINcommunication system DTC, steering lock system DTC,engine immobiliser system DTC or smart key system (forentry function) DTC by reproducing the symptomsindicated by the DTC.

Result

Proceed to

DTC is not output.

A

Wireless door lock control system DTC is output.

B

LIN communication system DTC is output.

C

Steering lock system DTC is output.

D

Engine immobiliser system DTC is output.

E

Smart key system (for entry function) DTC is output.

F
B

Go to WIRELESS DOOR LOCK CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)

C

Go to LIN COMMUNICATION SYSTEM (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

D

Go to DIAGNOSTIC TROUBLE CODE CHART

E

Go to ENGINE IMMOBILISER SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) 2016 MY Sienna [12/2015 - 08/2016]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/ Smart Key System): DIAGNOSTIC TROUBLE CODE CHART 2017 - 2020 MY Sienna [08/2016 -        ]; THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM(w/ Smart Key System): DIAGNOSTIC TROUBLE CODE CHART

F

Go to SMART KEY SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)

A

4.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; STEERING COLUMN: STEERING LOCK 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 6

A

5.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU.

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; STEERING COLUMN: STEERING LOCK SYSTEM: TERMINALS OF ECU

(b) Data List / Active Test.

Click here 2016 - 2020 MY Sienna [12/2015 -        ]; STEERING COLUMN: STEERING LOCK SYSTEM: DATA LIST / ACTIVE TEST

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6.

REPAIR OR REPLACE
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7.

CONFIRMATION TEST
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END