DESCRIPTION
When the driving support ECU receives a malfunction signal from the power steering ECU, DTC C1A71 is stored.
DTC Code | DTC Detection Condition | Trouble Area |
---|---|---|
C1A71 |
|
|
INSPECTION PROCEDURE
PROCEDURE
CHECK FOR DTC (POWER STEERING SYSTEM)
Check for DTCs Click here.
OK |
---|
Power steering system DTCs are not output. |
NG |
GO TO POWER STEERING SYSTEM Click here |
OK |
CHECK FOR DTC
Clear the DTCs Click here.
Make sure the following conditions are met:
Tech Tips
If the detection conditions are not met, the system cannot detect malfunctions.
Lane keeping assist system:
The vehicle is being driven at a speed of approximately 50 km/h (31 mph) or more and the lane-keeping assist main switch is on.
Check for DTCs Click here.
OK |
---|
DTC C1A71 is not output. |
NG |
REPLACE DRIVING SUPPORT ECU Click here |
OK |
END
REPLACE DRIVING SUPPORT ECU
Replace the driving support ECU with a new one Click here.
Note
When replacing the driving support ECU, always replace it with a new one and be sure to perform initialization Click here. If an ECU which was installed to another vehicle is used, the information stored in the ECU will not match the information from the vehicle, and as a result, a DTC may be stored.
NEXT |
CHECK FOR DTC
Clear the DTCs Click here.
Make sure the following conditions are met:
Tech Tips
If the detection conditions are not met, the system cannot detect malfunctions.
Lane keeping assist system:
The vehicle is being driven at a speed of approximately 50 km/h (31 mph) or more and the lane-keeping assist main switch is on.
Check for DTCs Click here.
OK |
---|
DTC C1A71 is not output. |
NG |
REPLACE POWER STEERING ECU Click here |
OK |
END