- Millimeter wave radar sensor assembly
- Driving support ECU assembly
| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000018WS3 |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: C1A10; Front Radar Sensor; 2018 - 2020 MY Sienna [11/2017 - ] | ||
|
DTC |
C1A10 |
Front Radar Sensor |
DESCRIPTION
The driving support ECU assembly uses the millimeter wave radar sensor assembly to detect obstacles in front of the vehicle.
When the driving support ECU assembly receives information that there is a malfunction in the millimeter wave radar sensor assembly, DTC C1A10 is stored.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
MIL |
|---|---|---|---|
|
C1A10 |
While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, the driving support ECU assembly receives a malfunction signal from the millimeter wave radar sensor assembly for approximately 0.3 seconds or more. |
|
Does not come on |
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the driving support ECU assembly, make sure to replace it with a new one. If a device which was installed to another vehicle is used, the information stored in the driving support ECU assembly will not match the information from the vehicle, and as a result, a DTC may be stored.
-
When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the radar sensor beam axis must be performed.
Click here
![2018 - 2020 MY Sienna [11/2017 - ]; CRUISE CONTROL: MILLIMETER WAVE RADAR SENSOR: ADJUSTMENT](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
(a) Replace the millimeter wave radar sensor assembly with a new one.
Click here
(b) Perform millimeter wave radar sensor assembly adjustment.
Click here
|
Proceed to |
|---|
|
NEXT |
|
|
2. |
CHECK FOR DTCs (RADAR CRUISE 2) |
(a) Clear the DTCs.
Click here
(b) Perform the following to make sure that the DTC detection conditions are met.
HINT:
If the following conditions are not met, the system cannot detect the malfunction.
- Turn the ignition switch to ON.
- Turn the dynamic radar cruise control system on using the cruise control main switch (ON-OFF button).
- Drive the vehicle at 36 km/h (22 mph) or more for 1 second or more.
(c) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC C1A10 is not output |
A |
|
DTC C1A10 is output |
B |
| A |
|
END (MILLIMETER WAVE RADAR SENSOR ASSEMBLY WAS DEFECTIVE) |
| B |
|
|
|