Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM10000000104IL
Model Year Start: 2017 Model: Sienna Prod Date Range: [08/2016 - 11/2017]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: Slip Indicator Light Remains ON; 2017 MY Sienna [08/2016 - 11/2017]

Slip Indicator Light Remains ON

DESCRIPTION

The skid control ECU is connected to the combination meter via CAN communication.

If the skid control ECU stores a DTC, the SLIP indicator light will come on in the combination meter.

The SLIP indicator light blinks during VSC and/or TRAC operation.

When the system fails, the SLIP indicator light comes on to warn the driver (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: DIAGNOSIS SYSTEM ).

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

When replacing the brake actuator assembly, perform zero point calibration and store system information (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: CALIBRATION ).

PROCEDURE

1.

CHECK CAN COMMUNICATION SYSTEM

(a) Check if a CAN communication system DTC is output (See page 2017 MY Sienna [08/2016 - 11/2017]; NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM ).

Result

Result

Proceed to

DTC is not output

A

DTC is output

B

B

INSPECT CAN COMMUNICATION SYSTEM

A

2.

CHECK IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED

(a) Check if the skid control ECU connector is securely connected.

OK:

The connector is securely connected.

NG

CONNECT CONNECTOR TO ECU CORRECTLY

OK

3.

INSPECT BATTERY

(a) Check the battery voltage.

Standard voltage:

11 to 14 V

NG

CHECK OR REPLACE CHARGING SYSTEM OR BATTERY

OK

4.

PERFORM ACTIVE TEST USING TECHSTREAM (SLIP INDICATOR LIGHT)

(a) Reconnect the skid control ECU connector.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Body Electrical / Combination Meter / Active Test.

(f) Select the Active Test on the Techstream.

Combination Meter

Tester Display

Test Part

Control Range

Diagnostic Note

Indicat. Lamp Slip

SLIP indicator light

OFF or ON

Operate with IG ON and the vehicle is stopped.

(g) Check that the SLIP indicator light on the combination meter turns on or off in accordance with the Techstream operation.

OK:

The SLIP indicator light turns on or off in accordance with the Techstream operation.

HINT:

If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (See page ).

Click here 2017 MY Sienna [08/2016 - 11/2017]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: PROBLEM SYMPTOMS TABLE

OK

REPLACE BRAKE ACTUATOR ASSEMBLY

NG

REPLACE COMBINATION METER ASSEMBLY