|DTC Code||DTC Name|
|C1A01||Driving Support ECU|
This DTC indicates an internal malfunction of the driving support ECU assembly.
|DTC No.||Detection Item||DTC Detection Condition||Trouble Area|
|C1A01||Driving Support ECU||When the engine switch is on (IG) and the dynamic radar cruise control system is operating, the driving support ECU assembly detects an internal malfunction for approximately 0.2 seconds or more.||Driving support ECU assembly|
CAUTION / NOTICE / HINT
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.
CHECK FOR DTCs
Clear the DTCs.
Perform the following to make sure that the DTC detection conditions are met.
If the following conditions are not met, the system cannot detect the malfunction.
Turn the engine switch on (IG).
Turn the dynamic radar cruise control system on using the cruise control main switch (ON/OFF button).
Wait for 1 second or more.
Check for DTCs.
USE SIMULATION METHOD TO CHECK Click here
REPLACE DRIVING SUPPORT ECU ASSEMBLY Click here