LANE-KEEPING ASSIST SYSTEM, Diagnostic DTC:C1A22, C1A23

DTC Code	DTC Name
C1A22	Object Recognition Camera Incorrect Axial Gap
C1A23	Object Recognition Camera Initialization Incomplete

DESCRIPTION

If the driving support ECU determines that the object recognition camera's axis has deviated, DTC C1A22 is stored. Also, if the camera sensor beam axis adjustment is not performed after installing the object recognition camera, DTC C1A23 is stored.

DTC Code	DTC Detection Condition	Trouble Area
C1A22	While the power switch is ON (IG), the driving support ECU detects object recognition camera beam axis deviation for 1 second or more.	Object recognition camera Object recognition ECU Driving support ECU
C1A23	While the power switch is ON (IG), the driving support ECU detects that object recognition camera adjustment has not been completed for 1 second or more.	Object recognition camera Object recognition ECU Driving support ECU

PROCEDURE

ADJUST OBJECT RECOGNITION CAMERA
1. Adjust the object recognition camera Click here.
NEXT
CHECK FOR DTC
1. Clear the DTCs Click here.
  
  Tech Tips
  
  If the detection conditions are not met, the system cannot detect the malfunction.
  1. Drive the vehicle at a 50 km/h (31 mph) or more, and operate lane-keeping assist system.
2. Check for DTCs Click here.
  
  OK
  
  DTC C1A22 or C1A23 are not output.
OK
END

NG
REPLACE OBJECT RECOGNITION ECU
1. Replace the object recognition ECU Click here.
NEXT
ADJUST OBJECT RECOGNITION CAMERA
1. Adjust the object recognition camera Click here.
NEXT
CHECK FOR DTC
1. Clear the DTCs Click here.
  
  Tech Tips
  
  If the detection conditions are not met, the system cannot detect the malfunction.
  1. Drive the vehicle at a 50 km/h (31 mph) or more, and operate lane-keeping assist system.
2. Check for DTCs Click here.
  
  OK
  
  DTC C1A22 or C1A23 are not output.
OK
END (OBJECT RECOGNITION ECU IS DEFECTIVE)

NG
REPLACE DRIVING SUPPORT ECU Click here