Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJTB
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 - 11/2017]
Title: PRE-COLLISION: PRE-COLLISION SYSTEM: C1A10; Front Radar Sensor; 2016 - 2017 MY Sienna [12/2015 - 11/2017]

DTC

C1A10

Front Radar Sensor

DESCRIPTION

The driving support ECU uses the millimeter wave radar sensor to detect obstacles in front of the vehicle.

Based on this information, the driving support ECU sends pre-collision control operation signals.

When the driving support ECU receives information that there is a malfunction in the millimeter wave radar sensor, DTC C1A10 is stored.

DTC No.

DTC Detection Condition

Trouble Area

C1A10

When the ignition switch is ON, the driving support ECU receives information that there is a malfunction in the millimeter wave radar sensor for approximately. 1 second.

  • Millimeter wave radar sensor
  • Driving support ECU

CAUTION / NOTICE / HINT

NOTICE:

When the millimeter wave radar sensor is replaced with a new one, adjustment of the radar sensor beam axis must be performed (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT ).

PROCEDURE

1.

REPLACE MILLIMETER WAVE RADAR SENSOR

(a) Replace the millimeter wave radar sensor (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: REMOVAL ).

NEXT

2.

ADJUST MILLIMETER WAVE RADAR SENSOR

(a) Adjust the millimeter wave radar sensor (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT ).

NEXT

3.

CHECK FOR DTC

(a) Using the Techstream, enter the following menus: Body Electrical / Pre-Collision 2 / Trouble Codes.

(b) Clear the DTCs (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; PRE-COLLISION: PRE-COLLISION SYSTEM: DTC CHECK / CLEAR ).

(c) Check for DTCs (See page 2016 - 2017 MY Sienna [12/2015 - 11/2017]; PRE-COLLISION: PRE-COLLISION SYSTEM: DTC CHECK / CLEAR ).

OK:

DTC C1A10 is not output.

OK

END

NG

REPLACE DRIVING SUPPORT ECU