| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000018YBP |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: PRE-COLLISION: PRE-COLLISION SYSTEM: C1AA0; Front Camera Module Circuit; 2018 - 2020 MY Sienna [11/2017 - ] | ||
|
DTC |
C1AA0 |
Front Camera Module Circuit |
DESCRIPTION
The driving support ECU assembly receives information about the area in front of the vehicle from the forward recognition camera.
If the driving support ECU assembly detects a malfunction in the forward recognition camera, it will store DTC C1AA0.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1AA0 |
Front Camera Module Circuit |
While the ignition switch is ON, the forward recognition camera detects an internal malfunction for approximately 0.3 seconds or more. |
|
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the driving support ECU assembly, always replace it with a new one. If a driving support ECU assembly 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. As a result, a DTC may be stored.
- When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.
-
If the forward recognition camera has been replaced with a new one, be sure to perform forward recognition camera adjustment.
Click here
![2018 - 2020 MY Sienna [11/2017 - ]; CRUISE CONTROL: FRONT CAMERA: ADJUSTMENT (SEQUENTIAL RECOGNITION)](/t3Portal/stylegraphics/info.gif)
-
The pre-collision system uses the CAN communication system. First, confirm that there are no malfunctions in the CAN communication system. Refer to How to Proceed with Troubleshooting.
Click here
PROCEDURE
|
1. |
CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM) |
HINT:
Pre-collision system DTC C1AA0 may be stored due to a malfunction in the forward recognition camera system. Therefore, it is necessary to check for and troubleshoot forward recognition camera system DTCs first.
(a) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
Forward recognition camera system DTCs are not output |
A |
|
Forward recognition camera system DTCs are output |
B |
| B |
|
|
|
2. |
CHECK FOR DTCs (PRE-COLLISION SYSTEM) |
(a) Clear the DTCs.
Click here
(b) Perform the following procedure.
HINT:
If the following procedure is not performed, the previously output DTC cannot be detected.
- Turn the ignition switch to ON and wait 0.3 seconds or more.
(c) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC C1AA0 is not output |
A |
|
DTC C1AA0 is output |
B |
| A |
|
|
|
3. |
REPLACE DRIVING SUPPORT ECU ASSEMBLY |
(a) Replace the driving support ECU assembly.
Click here
|
|
4. |
CHECK FOR DTCs (PRE-COLLISION SYSTEM) |
(a) Clear the DTCs.
Click here
(b) Perform the following procedure.
HINT:
If the following procedure is not performed, the previously output DTC cannot be detected.
- Turn the ignition switch to ON and wait 0.3 seconds or more.
(c) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC C1AA0 is not output |
A |
|
DTC C1AA0 is output |
B |
| A |
|
END (DRIVING SUPPORT ECU ASSEMBLY WAS DEFECTIVE) |
| B |
|
|
|