CHECK DTC OUTPUT (CAN COMMUNICATION DTC OUTPUT)
CHECK DTC OUTPUT (ROAD SIGN ASSIST SYSTEM)
REPLACE FORWARD RECOGNITION CAMERA
CHECK DTC OUTPUT (ROAD SIGN ASSIST SYSTEM)
DTC C1AA1 FCM Destination Information Unmatched |
DESCRIPTION
When the forward recognition camera is replaced with a new one, it stores country specification information received from the main body ECU (multiplex network body ECU). 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), DTC C1AA1 is stored.| DTC No. | DTC Detection Condition | Trouble Area |
| C1AA1 | While the initial check is running, the engine switch is on (IG) and the road sign assist system is operating, country specification information in the forward recognition camera and main body ECU (multiplex network body ECU) do not match for 5 second or more. |
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INSPECTION PROCEDURE
- NOTICE:
- Recognition code registration is necessary when replacing the main body ECU (multiplex network body ECU).
- If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.
- 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 Recognition Camera/Target Position Memory and Recognition Camera Axis Adjust (Click here).
- HINT:
- This DTC is stored when the country specification 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.
| 1.CHECK DTC OUTPUT (CAN COMMUNICATION DTC OUTPUT) |
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Road Sign Assist / Trouble Codes.
Check for DTCs (Click here).
| Result | Proceed to |
| DTC U0142 is not output | A |
| DTC U0142 is output | B |
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| A | |
| 2.CHECK DTC OUTPUT (ROAD SIGN ASSIST SYSTEM) |
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Road Sign Assist / Trouble Codes.
Clear the DTCs (Click here).
Make sure that the DTC detection conditions are met.
- HINT:
- If the detection conditions are not met, the system cannot detect the malfunction.
Check for DTCs (Click here).
| Result | Proceed to |
| DTC C1AA1 is output | A |
| DTC C1AA1 is not output | B |
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| ||||
| A | |
| 3.REPLACE FORWARD RECOGNITION CAMERA |
Replace the forward recognition camera (Click here).
Adjust the forward recognition camera (Click here).
| NEXT | |
| 4.CHECK DTC OUTPUT (ROAD SIGN ASSIST SYSTEM) |
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Road Sign Assist / Trouble Codes.
Clear the DTCs (Click here).
Make sure that the DTC detection conditions are met.
- HINT:
- If the detection conditions are not met, the system cannot detect the malfunction.
Check for DTCs (Click here).
| Result | Proceed to |
| DTC C1AA1 is output | A |
| DTC C1AA1 is not output | B |
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| A | ||
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