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GSIC - Global Service Information Center

DTC    C1611    ECU Malfunction

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DESCRIPTION

This DTC is stored if the parking assist ECU judges that there is an internal malfunction as a result of its self check.

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.


DTC No.
DTC Detection Condition
Trouble Area
C1611
When one of the following conditions is met:
  1. ROM/SUM check malfunction
  2. Mirror check malfunction
  3. High-speed RAM check malfunction
  4. EEPROM (Initial read) malfunction
  5. RAM check malfunction
  6. CPU busy malfunction
  7. CPU communication malfunction
  8. Integer arithmetic malfunction
  9. FPU calculation malfunction
  10. AISIC output malfunction
  1. Parking assist ECU initialization (not initialized parking assist ECU)
  2. Height control sensor vehicle height difference setting (not initialized parking assist ECU)
  3. Rear television camera optical axis adjustment (initialized parking assist ECU)
  4. Steering angle setting (initialized parking assist ECU)
  5. Parking assist ECU

INSPECTION PROCEDURE

NOTICE:
  1. When "System initializing" message is displayed on the navigation receiver assembly after the battery terminal disconnected, 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 intelligent parking assist system may be needed (Click here).

1.READ VALUE USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter the following menus: Chassis / Intelligent Parking Assist / Data List.

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

    Intelligent Parking Assist 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    ROM/SUM Check
    		Parking assist ECU information/OK or NG
    		OK: Parking assist ECU is normal
    NG: Parking assist ECU is abnormal
    		-
    Mirror Check
    		Parking assist ECU information/OK or NG
    		OK: Parking assist ECU is normal
    NG: Parking assist ECU is abnormal
    		-
    High-Speed RAM Check
    		Parking assist ECU information/OK or NG
    		OK: Parking assist ECU is normal
    NG: Parking assist ECU is abnormal
    		-
    EEPROM Status (Initial read)
    		Parking assist ECU information/OK or NG
    		OK: Parking assist ECU is normal
    NG: Parking assist ECU is abnormal
    		-
    RAM Check
    		Parking assist ECU information/OK or NG
    		OK: Parking assist ECU is normal
    NG: Parking assist ECU is abnormal
    		-
    CPU Busy Status
    		Parking assist ECU information/OK or NG
    		OK: Parking assist ECU is normal
    NG: Parking assist ECU is abnormal
    		-
    CPU Communication Status
    		Parking assist ECU information/OK or NG
    		OK: Parking assist ECU is normal
    NG: Parking assist ECU is abnormal
    		-
    Integer Arithmetic Status
    		Parking assist ECU information/OK or NG
    		OK: Parking assist ECU is normal
    NG: Parking assist ECU is abnormal
    		-
    FPU Calculation Status
    		Parking assist ECU information/OK or NG
    		OK: Parking assist ECU is normal
    NG: Parking assist ECU is abnormal
    		-
    AISIC 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 all items.
    		A
    NG is displayed for EEPROM status (Initial read).
    		A
    NG is displayed except EEPROM status (Initial read).
    		B



B
REPLACE PARKING ASSIST ECU (Click here)
A


2.ADJUST SETTINGS (PARKING ASSIST ECU INITIALIZATION)

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).

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

    Condition
    		Procedure
    Not initialized
    		Parking assist ECU initialization (Click here)
    Initialized
    1. Height control sensor vehicle height difference setting (Click here)
    2. Rear television camera optical axis adjustment (Click here)
    3. Steering angle setting (Click here)


NEXT


3.CHECK DTC OUTPUT

  1. Clear the DTCs (Click here).

  1. 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)