Nissan Ariya: Diagnosis System (dc/dc Converter)

• On Board Diagnostic (obd) System
• Consult Function

On Board Diagnostic (obd) System

Diagnosis Description

ON BOARD DIAGNOSTIC (OBD) SYSTEM

DC/DC converter that is corresponded to on board diagnostic system detects malfunction automatically, when system error occurs.

Malfunction information is stored DC/DC converter memory as a DTC that can be obtained with CONSULT.

COUNTER SYSTEM

Counter system counts up at every operation of power switch from OFF to ON under condition that the same malfunction is not detected. On the other hand, if the same DTC as memorized one is detected again, the count is reset and the counter system counts up again from "0".

DTC AND FREEZE FRAME DATA

DC/DC converter can save multiple DTCs but can only save one freeze frame data.

After DC/DC converter detects a malfunction and saves DTC and freeze, frame data, if a different malfunction is detected, multiple DTCs are confirmed, but only first freeze frame data.

DTC and freeze frame data can be deleted when self-diagnostic is deleted.

Consult Function

CONSULT Function

FUNCTION

*：When memory of DC/DC converter is deleted, the following diagnosis information are also deleted

• DTC

• Freeze frame data

• Corresponded operation history and operation count.

SELF-DIAG RESULTS MODE

Self Diagnostic Item

Regarding items of DTC, Refer to DTC Index.

IGN Counter

IGN counter is displayed in Freeze Frame Data (FFD). It displays the number of operations of power switch from OFF to ON after DTC recovery to normal. Refer to Diagnosis Description.

• CAN malfunction (U1000)

  • The number "0" is displayed when a malfunction is detected now.

  • The displayed number counts up at each operation of power switch from OFF to ON after　recovery to normal, such as 1 → 2 → 3...38 → 39.

  • The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.

• Except CAN malfunction (Except U1000)

  • The number "0" is displayed when a malfunction is detected now.

  • The displayed number counts up at each operation of power switch from OFF to ON after　recovery to normal, such as 1 → 2 → 3...254 → 255.

  • The number is fixed to 255 until the self-diagnosis results are erased if it is over 255.

Freeze Frame Data

The Freeze Frame Data shows the status of the vehicle when the DTC is detected and is useful for　recreating the status when the malfunction occurred.

DATA MONITOR MODE

NOTE:

The following table includes information (items) inapplicable to this Nissan Ariya vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.

Diagnosis System (on-Board Charger)Ecu Diagnosis Information