| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM1000000018WRR |
| Model Year Start: 2018 | Model: Sienna | Prod Date Range: [11/2017 - ] |
| Title: CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: C1A02; Vehicle Information Not Obtained; 2018 - 2020 MY Sienna [11/2017 - ] | ||
|
DTC |
C1A02 |
Vehicle Information Not Obtained |
DESCRIPTION
When a new driving support ECU assembly is installed, it receives vehicle specification information (destination, steering wheel position, 2WD or AWD, etc.) from the main body ECU (multiplex network body ECU) and stores the information.
DTC C1A02 is stored when the driving support ECU assembly cannot store the vehicle specification information from the main body ECU (multiplex network body ECU).
|
DTC No. |
DTC Detection Condition |
Trouble Area |
MIL |
|---|---|---|---|
|
C1A02 |
While the ignition switch is ON and the dynamic radar cruise control system is operating, the driving support ECU assembly cannot store the vehicle specification information for approximately 0.1 seconds or more. |
Driving support ECU assembly |
Does not come on |
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.
PROCEDURE
|
1. |
CHECK FOR DTC (RADAR CRUISE 2) |
(a) Clear the DTCs.
Click here
![2018 - 2020 MY Sienna [11/2017 - ]; CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: DTC CHECK / CLEAR](/t3Portal/stylegraphics/info.gif)
(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).
- Wait for 1 second or more.
(c) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC C1A02 is not output |
A |
|
DTC C1A02 is output |
B |
| A |
|
| B |
|
|
|