| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000018K3H |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: CRUISE CONTROL: LANE DEPARTURE ALERT SYSTEM(w/ Steering Control): C1A70; Power Steering Control System; 2018 - 2020 MY Sienna [11/2017 - ] | ||
|
DTC |
C1A70 |
Power Steering Control System |
DESCRIPTION
If the forward recognition camera receives an internal malfunction signal from the power steering ECU assembly, DTC C1A70 is stored.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C1A70 |
Power Steering Control System |
2 seconds after the ignition switch is turned to ON, a malfunction in the power steering system internal circuit is detected 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.
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![2018 - 2020 MY Sienna [11/2017 - ]; CRUISE CONTROL: FRONT CAMERA: ADJUSTMENT (SEQUENTIAL RECOGNITION)](/t3Portal/stylegraphics/info.gif)
-
The lane departure alert 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 (POWER STEERING SYSTEM) |
HINT:
Lane departure alert system DTC C1A70 may be stored due to a malfunction in the power steering system. Therefore it is necessary to check for and troubleshoot power steering system DTCs first.
(a) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
Power steering system DTCs are not output |
A |
|
Power steering system DTCs are output |
B |
| B |
|
|
|
2. |
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 C1A70 is not output |
A |
|
DTC C1A70 is output |
B |
| A |
|
| B |
|
|
|