DTC C1AAC: Vehicle Information Unmatched [08/2016 - ]: Procedure

HINT: 

The forward recognition camera communicates with the ECM via CAN communication. Confirm that the CAN communication system is functioning normally before proceeding.

1. Check for DTCs.

   Refer to DTC CHECK / CLEAR [08/2016 - ]

   Chassis > LKA/LDA > Trouble Codes 

   Result

   Result	Proceed to
   DTC U0100 is not output	A
   DTC U0100 is output	B

Result:  2

B 

GO TO CAN COMMUNICATION SYSTEM:  HOW TO PROCEED WITH TROUBLESHOOTING [08/2016 - ] 

Result:  1

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Chassis / Front Recognition Camera / Data List.
5. Read the Data List according to the display on the Techstream.

   Chassis > Front Recognition Camera > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Vehicle Information (2WD/4WD)	Vehicle information	2WD, 4WD or Unknown	2WD: for 2WD 4WD: for AWD Unknown: Vehicle information not confirmed	-
   Vehicle Information (Conv/HV)	Vehicle information	Conv, HV or Unknown	Conv: Conventional HV: Hybrid vehicle Unknown: Vehicle information not confirmed	-

   Chassis > Front Recognition Camera > Data List 

   Tester Display
   Vehicle Information (2WD/4WD)
   Vehicle Information (Conv/HV)

   HINT: 

   • The vehicle information stored in the forward recognition camera is displayed on the Data List.
   • If the vehicle information stored in the forward recognition camera is different from the actual vehicle specifications, the vehicle information stored in the forward recognition camera may be incorrect. Check for DTCs and replace the forward recognition camera if necessary.
   • If the vehicle information stored in the forward recognition camera matches the actual vehicle specifications, the installed ECM is incompatible. Replace the ECM with a correct one.

   Result

   Result	Proceed to
   Vehicle information stored in forward recognition camera and actual vehicle specifications do not match	A
   Vehicle information stored in forward recognition camera and actual vehicle specifications match	B

Result:  2

B 

REPLACE ECM 

for 2ZR-FAE: Refer to COMPONENTS [08/2016 - ]

for 2ZR-FE: Refer to COMPONENTS [08/2016 - ]

Result:  1

A 

See step  3

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [08/2016 - ]

   Chassis > LKA/LDA > Clear DTCs 

2. Perform the following procedure.

   HINT: 

   If the following procedure is not performed, the previously output DTC cannot be detected.

   1. Turn the ignition switch to ON and wait 2 seconds or more.
3. Check for DTCs.

   Refer to DTC CHECK / CLEAR [08/2016 - ]

   Chassis > LKA/LDA > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1AAC is not output	A
   DTC C1AAC is output	B

Result:  1

A 

USE SIMULATION METHOD TO CHECK:  HOW TO PROCEED WITH TROUBLESHOOTING [08/2016 - 08/2017]  ,  HOW TO PROCEED WITH TROUBLESHOOTING [08/2017 - ] 

Result:  2

B 

REPLACE FORWARD RECOGNITION CAMERA:  COMPONENTS [08/2016 - ]