DTC C1AAD: Vehicle Information Initialization Incomplete [10/2015 - ]: Procedure

HINT: 

The forward recognition camera communicates with the hybrid vehicle control ECU assembly via CAN communication. Confirm that the CAN communication system is functioning normally before proceeding.

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Chassis / LKA/LDA / Trouble Codes.
5. Check for DTCs.

   Refer to DTC CHECK / CLEAR [10/2015 - ]

   Result

   Result	Proceed to
   DTC U0293 is not output	A
   DTC U0293 is output	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] 

Result: 

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
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	-

   HINT: 

   • If "Unknown" is displayed, the hybrid vehicle control ECU assembly cannot send vehicle information or the forward recognition camera cannot store the vehicle information. Check for DTCs, replace the hybrid vehicle control ECU assembly if necessary and recheck for DTCs. If the DTC is output again, replace the forward recognition camera.
   • If "Unknown" is not displayed, the DTC is stored even though the vehicle information is stored in the forward recognition camera. Replace the forward recognition camera.

   Result

   Result	Proceed to
   "Unknown" is displayed	A
   "Unknown" is not displayed	B

Result: 

B 

REPLACE FORWARD RECOGNITION CAMERA. Refer to  COMPONENTS [10/2015 - ] 

Result: 

A 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Chassis / LKA/LDA / Trouble Codes.
5. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2015 - ]

6. Perform the following procedure.

   HINT: 

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

   1. Turn the power switch on (IG) and wait 2 seconds or more.
7. Check for DTCs.

   Refer to DTC CHECK / CLEAR [10/2015 - ]

   Result

   Result	Proceed to
   DTC C1AAD is not output	A
   DTC C1AAD is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] 

Result: 

B 

See step  4

1. Replace the hybrid vehicle control ECU assembly.

   Refer to REMOVAL [10/2015 - ]

Result: 

NEXT 

See step  5

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Chassis / LKA/LDA / Trouble Codes.
5. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2015 - ]

6. Perform the following procedure.

   HINT: 

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

   1. Turn the power switch on (IG) and wait 2 seconds or more.
7. Check for DTCs.

   Refer to DTC CHECK / CLEAR [10/2015 - ]

   Result

   Result	Proceed to
   DTC C1AAD is not output	A
   DTC C1AAD is output	B

Result: 

A 

END (HYBRID VEHICLE CONTROL ECU ASSEMBLY WAS DEFECTIVE) 

Result: 

B 

REPLACE FORWARD RECOGNITION CAMERA. Refer to  COMPONENTS [10/2015 - ]