Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM1000000018K2Y
Model Year Start: 2018 Model: Sienna Prod Date Range: [11/2017 -           ]
Title: CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM(w/ Steering Control): HOW TO PROCEED WITH TROUBLESHOOTING; 2018 - 2020 MY Sienna [11/2017 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

HINT:

  • Use these procedures to troubleshoot the lane departure alert system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

INSPECT BATTERY VOLTAGE

(a) Measure the battery voltage with the ignition switch off.

Standard Voltage:

11 to 14 V

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

NEXT

3.

CHECK CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check if the CAN communication system is functioning normally.

HINT:

Refer to CAN Bus Check in CAN Communication System.

Click here 2018 MY Sienna [11/2017 - 08/2018]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM 2019 - 2020 MY Sienna [08/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM

OK:

CAN communication system is functioning normally.

NG

GO TO CAN COMMUNICATION SYSTEM

OK

4.

CHECK FOR DTCs* (LANE DEPARTURE ALERT SYSTEM)

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

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM(w/ Steering Control): DTC CHECK / CLEAR

(b) Clear the DTCs.

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM(w/ Steering Control): DTC CHECK / CLEAR

(c) Recheck for DTCs. Try to reproduce the DTCs by duplicating the conditions indicated by the DTCs.

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM(w/ Steering Control): DTC CHECK / CLEAR

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO DTC CHART

A

5.

PROBLEM SYMPTOMS TABLE

HINT:

Refer to Problem Symptoms Table.

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM(w/ Steering Control): 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 8

A

6.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM(w/ Steering Control): TERMINALS OF ECU

(b) Data List / Active Test

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM(w/ Steering Control): DATA LIST / ACTIVE TEST

NEXT

7.

ADJUST, REPAIR OR REPLACE

NOTICE:

When the forward recognition camera is replaced with a new one, forward recognition camera adjustment must be performed.

Click here 2018 - 2020 MY Sienna [11/2017 -        ]; CRUISE CONTROL: FRONT CAMERA: ADJUSTMENT (SEQUENTIAL RECOGNITION)

NEXT

8.

CONFIRMATION TEST

NEXT

END