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Home >> Infiniti >> 2024 >> QX80 Premium Select, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Driver Assistance System >> Description >> Diagnosis System (ADAS Control Unit) >> On Board Diagnosis Function >> On Board Diagnosis Function

On Board Diagnosis Function

DESCRIPTION 

The DTC is displayed on the information display by operating the ICC steering switch.

On Board Self-diagnosis System Diagram 

GNSDB147125Courtesy of NISSAN NORTH AMERICA, INC.

METHOD OF STARTING 

CAUTION:

Start condition of on board self-diagnosis

  • ICC system OFF
  • DCA system OFF
  • Vehicle speed 0 km/h (0 MPH)
  1. Turn the ignition switch OFF.
  2. Start the engine.
  3. Wait for 5 seconds after starting the engine. Push up the RESUME/ACCELERATE switch 5 times and push down the SET/COAST switch 5 times within 10 seconds.
    GNSDB147102Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE: If the above operation cannot be performed within 10 seconds after waiting for 5 seconds after starting the engine, repeat the procedure from step 1.
  4. The DTC is displayed on the set vehicle speed indicator SYMBOL on the ICC system display on the information display when the on board self-diagnosis starts. Refer to DTC Index .
    GNSDB147261Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE:
    • It displays for up to 5 minutes and then stops.
    • If multiple malfunctions exist, up to 6 DTCs can be stored in memory at the most, and the most recent one is displayed first.

WHEN THE ON BOARD SELF-DIAGNOSIS DOES NOT START 

If the on board self-diagnosis does not start, check the following items.

Assumed abnormal part Inspection item
Information display Combination meter malfunction Check that the self-diagnosis function of the combination meter operates. Refer to Diagnosis Description .
ICC steering switch malfunction Perform the inspection for DTC "C1A06". Refer to DTC Description .
Harness malfunction between ICC steering switch and ADAS control unit
ADAS control unit malfunction
Harness malfunction between ICC steering switch and ECM
ECM malfunction
ADAS control unit malfunction
  • Check power supply and ground circuit of ADAS control unit. Refer to Diagnosis Procedure .
  • Perform SELF-DIAGNOSIS for "ICC/ADAS"with CONSULT, and then check the malfunctioning parts. Refer to DTC Index .

HOW TO ERASE ON BOARD SELF-DIAGNOSIS 

  1. Turn the ignition switch OFF.
  2. Start the engine, and then start the on board self-diagnosis.
  3. Press the CANCEL switch 5 times, and then press the DISTANCE switch 5 times under the condition that the on board self-diagnosis starts.
    GNSDB147208Courtesy of NISSAN NORTH AMERICA, INC.
    NOTE:
    • Complete the operation within 10 seconds after pressing the CANCEL switch first.
    • If the operation is not completed within 10 seconds, repeat the procedure from step 1.
  4. DTC 55 is displayed after erasing.
    NOTE: DTCs for existing malfunction can not be erased.
  5. Turn ignition switch OFF, and finish the diagnosis.