DTC U1119: Lost Communication with Object Recognition ECU (CAN) [08/2015 - 08/2019]: Procedure

1. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).
   RESULT
   
   

   Result	Proceed to
   DTC U1119 is output	A
   DTC other than U1119 is output	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

(Refer to DIAGNOSIS SYSTEM [08/2015 - 08/2019] )

Result: 

A 

See step  2

1. Disconnect the G43 ECU connector.
2. Disconnect the W12 sensor connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G43-24 (HITP) - W12-5 (HITP)	Always	Below 1 Ω
   G43-24 (HITP) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Replace the lane recognition camera sensor assembly (Refer to REMOVAL [08/2015 - 08/2019] ).

Result: 

NEXT 

See step  4

1. Adjust the lane recognition camera sensor assembly (Refer to ADJUSTMENT [08/2015 - 08/2019] ).

Result: 

NEXT 

See step  5

1. Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).
2. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).

   OK

   DTC U1119 is not output.

Result: 

OK 

END (LANE RECOGNITION CAMERA SENSOR ASSEMBLY IS DEFECTIVE) 

Result: 

NG 

REPLACE DRIVING SUPPORT ECU 

(Refer to REMOVAL [08/2015 - 08/2019] )