DTC C1A73: Driving Support ECU Receive Data Malfunction [09/2017 - 05/2019]: Procedure

CHECK FOR DTCs (PRE-COLLISION SYSTEM)

Check for DTCs.

Body Electrical > Pre-Collision 2 > Trouble Codes

HINT:

The driving support ECU communicates with other ECUs via CAN communication. Confirm that the CAN communication system is functioning normally before proceeding.

Result

Result	Proceed to
DTC U0100, U0125, U0126, U0129, U0235, U023A, U1002 and U1104 are not output	A
DTC U0100, U0125, U0126, U0129, U0235, U023A, U1002 or U1104 is output	B

Result:

GO TO PRE-COLLISION SYSTEM. Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2017 - 05/2019]

Result:

See step 2

CHECK FOR DTCs

Clear the DTCs.
Refer to DTC CHECK / CLEAR [09/2017 - 05/2019]

Chassis > LKA/LDA > Clear DTCs
Make sure that the DTC detection conditions are met.
HINT:

If the conditions are not met, the system cannot detect the malfunction.

Check for DTCs.

Refer to DTC CHECK / CLEAR [09/2017 - 05/2019]

Chassis > LKA/LDA > Trouble Codes

Result

Result	Proceed to
DTC C1A73 is not output	A
DTC C1A73 is output	B

Result:

USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2017 - 05/2019]

Result:

See step 3

REPLACE FORWARD RECOGNITION CAMERA

Replace the forward recognition camera.
Refer to REMOVAL [09/2017 - 05/2019]

Perform Forward Recognition Camera Learning.

Refer to ADJUSTMENT (SEQUENTIAL RECOGNITION) [09/2017 - 05/2019]

Result

Proceed to
NEXT

Result:

See step 4

CHECK FOR DTCs

Clear the DTCs.
Refer to DTC CHECK / CLEAR [09/2017 - 05/2019]

Chassis > LKA/LDA > Clear DTCs
Make sure that the DTC detection conditions are met.
HINT:

If the conditions are not met, the system cannot detect the malfunction.

Check for DTCs.

Refer to DTC CHECK / CLEAR [09/2017 - 05/2019]

Chassis > LKA/LDA > Trouble Codes

Result

Result	Proceed to
DTC C1A73 is not output	A
DTC C1A73 is output	B

Result:

END (FORWARD RECOGNITION CAMERA WAS DEFECTIVE)

Result:

REPLACE DRIVING SUPPORT ECU ASSEMBLY. Refer to REMOVAL [09/2017 - 05/2019]