| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000018K2M |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: CRUISE CONTROL: FORWARD RECOGNITION CAMERA SYSTEM: C1AA4,C1AA5; Yaw Rate Sensor Circuit; 2018 - 2020 MY Sienna [11/2017 - ] | ||
|
DTC |
C1AA4 |
Yaw Rate Sensor Circuit |
|
DTC |
C1AA5 |
Yaw Rate Sensor Power Supply Voltage Circuit |
DESCRIPTION
The forward recognition camera receives vehicle stability signals from the yaw rate sensor (airbag sensor assembly). If the yaw rate sensor (airbag sensor assembly) detects an abnormal yaw rate sensor signal or yaw rate sensor power supply voltage, it informs the forward recognition camera via CAN communication, and DTC C1AA4 or C1AA5 is stored.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1AA4 |
Yaw Rate Sensor Circuit |
2 seconds after the ignition switch is turned to ON, a signal from the yaw rate sensor indicating a malfunction in the yaw rate sensor is detected by the forward recognition camera for 5 seconds or more. |
|
|
C1AA5 |
Yaw Rate Sensor Power Supply Voltage Circuit |
2 seconds after the ignition switch is turned to ON, a signal from the yaw rate sensor indicating an abnormal yaw rate sensor power supply voltage signal is detected by the forward recognition camera 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)
-
The forward recognition camera 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.
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PROCEDURE
|
1. |
CHECK FOR DTCs (VEHICLE STABILITY CONTROL SYSTEM) |
HINT:
forward recognition camera system DTC C1AA4 or C1AA5 may be stored due to a malfunction in the vehicle stability control system. Therefore it is necessary to check for and troubleshoot vehicle stability control system DTCs first.
(a) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
Vehicle stability control system DTCs are not output |
A |
|
Vehicle stability control system DTCs are output |
B |
| B |
|
|
|
2. |
CHECK FOR DTCs (FORWARD RECOGNITION CAMERA 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 C1AA4 and C1AA5 are not output |
A |
|
DTC C1AA4 or C1AA5 is output |
B |
| A |
|
|
|
3. |
REPLACE FORWARD RECOGNITION CAMERA |
(a) Replace the forward recognition camera.
Click here
(b) Perform forward recognition camera adjustment.
Click here
|
|
4. |
CHECK FOR DTCs (FORWARD RECOGNITION CAMERA 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 C1AA4 and C1AA5 are not output |
A |
|
DTC C1AA4 or C1AA5 is output |
B |
| A |
|
END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE) |
| B |
|
|
|