DTC    C1611    ECU Malfunction

for Preparation Click here

DESCRIPTION

HINT:

The parking assist ECU stores different types of information during initialization. If the parking assist ECU cannot read the stored information when it is activated, the parking assist ECU judges that there is an internal malfunction and stores this DTC.

INSPECTION PROCEDURE

NOTICE:

1. When "System initializing" is displayed on the multi-display after disconnecting the cable from the negative (-) auxiliary battery terminal, correct the steering angle neutral point (Click here).
   
2. Depending on the parts that are replaced or operations that are performed during vehicle inspection or maintenance, calibration of other systems as well as the parking assist monitor system may be needed (Click here).
   
3. After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work (Click here).
   

1. Connect the intelligent tester to the DLC3.
   

2. Turn the power switch on (IG).
   

3. Turn the intelligent tester on.
   

4. Enter the following menus: Chassis / Parking Assist Monitor System / Data List.
   

5. Check the Data List for proper functioning of the following items.
   
   

   Parking Assist Monitor System 

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   EEPROM Status (Initial read)	Parking assist ECU information/OK or NG	OK: Parking assist ECU is normal NG: Parking assist ECU is abnormal	-
   ASIC Output Status	Output condition of camera display signal/OK or NG	OK: Output condition of camera display signal is normal NG: Output condition of camera display signal is abnormal	-

   Result:

   Result	Proceed to
   OK is displayed for both items.	A
   NG is displayed for EEPROM Status (Initial read).	A
   NG is displayed for ASIC Output Status	B

B	REPLACE PARKING ASSIST ECU (Click here)

A

HINT:

1. The parking assist ECU stores different types of information during initialization. If the parking assist ECU cannot read the stored information when it is activated, the parking assist ECU judges that there is an internal malfunction and stores this DTC.
   
2. If the parking assist ECU cannot read the stored information when it is activated, allowing the ECU to store the information again may return the system to normal.
   

1. Use the transition of diagnosis screens (note which transition pattern occurs) to confirm if the parking assist ECU was able to properly store the information from initialization (Click here).
   

   HINT:

   The procedure to make the parking assist ECU store the vehicle information differs when the parking assist ECU has stored the information (initialized) and when the information has not been stored (not initialized).

2. Perform the following procedure depending on the memory condition to register the vehicle information into the parking assist ECU.
   
   

   Condition	Procedure
   Not initialized	Parking assist ECU initialization (Click here)
   Initialized	Back camera position setting (Click here) Steering angle setting (Diagnosis system) (Click here)

NEXT

1. Clear the DTCs (Click here).
   

2. Check for DTCs (Click here).
   

   Result:

   Result	Proceed to
   DTC C1611 is output	A
   No DTC is output	B

HINT:

1. If DTC C1611 is output, perform the procedure to allow the parking assist ECU to store the vehicle information again.
   
2. If DTC C1611 is still output after performing the procedure to make the parking assist ECU store the vehicle information 3 times, replace the parking assist ECU.
   
3. If DTC C1611 is output frequently, replace the parking assist ECU even though the DTC is not output when rechecking for DTCs.
   

B	END

A
REPLACE PARKING ASSIST ECU (Click here)