| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000018K3M |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM(w/ Steering Control): C1AA1; FCM Destination Information Unmatched; 2018 - 2020 MY Sienna [11/2017 - ] | ||
|
DTC |
C1AA1 |
FCM Destination Information Unmatched |
DESCRIPTION
When the forward recognition camera is replaced with a new one, the new forward recognition camera attempts to store country specification information received from the main body ECU (multiplex network body ECU) and ECM. If the country specification information stored in the forward recognition camera is different from that stored in the main body ECU (multiplex network body ECU) or ECM, DTC C1AA1 is stored.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1AA1 |
FCM Destination Information Unmatched |
2 seconds after the ignition switch is turned to ON, destination information stored in the forward recognition camera and that received from the main body ECU (multiplex network body ECU) or ECM do not match for 5 seconds or more. |
|
CAUTION / NOTICE / HINT
NOTICE:
- 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)
HINT:
This DTC is stored when the destination information stored in the forward recognition camera and that stored in the main body ECU (multiplex network body ECU) do not match. If the forward recognition camera or main body ECU (multiplex network body ECU) has been replaced, check if a forward recognition camera or main body ECU (multiplex network body ECU) from another vehicle was used.
PROCEDURE
|
1. |
CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM) |
HINT:
When DTC C1AA1 is stored, DTC C1AAC may be stored at the same time.
(a) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC C1AAC is not output |
A |
|
DTC C1AAC is output |
B |
| B |
|
|
|
2. |
CHECK FOR DTCs (CAN COMMUNICATION DTC OUTPUT) |
HINT:
The forward recognition camera communicates with the main body ECU (multiplex network body ECU) via CAN communication. Confirm that the CAN communication system is functioning normally before proceeding.
(a) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC U0142 is not output |
A |
|
DTC U0142 is output |
B |
| B |
|
|
|
3. |
CHECK FOR DTCs (LANE DEPARTURE ALERT 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 7 seconds or more.
(c) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC C1AA1 is not output |
A |
|
DTC C1AA1 is output |
B |
| A |
|
|
|
4. |
REPLACE FORWARD RECOGNITION CAMERA |
(a) Replace the forward recognition camera.
Click here
(b) Perform forward recognition camera adjustment.
Click here
|
|
5. |
CHECK FOR DTCs (LANE DEPARTURE ALERT 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 7 seconds or more.
(c) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC C1AA1 is not output |
A |
|
DTC C1AA1 is output |
B |
| A |
|
END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE) |
| B |
|
|
|