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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Automatic Transmission (Re7R01B) (1 Of 2)) >> System Description >> Diagnosis System (TCM) >> Permanent Diagnostic Trouble Code >> Notes

Permanent Diagnostic Trouble Code: Notes

WARNING: This page is about a different variant/trim than selected.

Permanent DTC is defined in SAE J1979/ISO 15031-5 Service $0A.

TCM stores a DTC issuing a command of turning on MIL as a permanent DTC and keeps storing the DTC as a permanent DTC until TCM judges that there is no presence of malfunction.

Permanent DTCs cannot be erased by using the erase function of CONSULT or Generic Scan Tool (GST) and by disconnecting the battery to shut off power to TCM. This prevents a vehicle from passing the in-use inspection without repairing a malfunctioning part.

When not passing the in-use inspection due to more than one permanent DTC, permanent DTCs should be erased, referring to this manual.

NOTE:
  • Permanent DTCs do not apply for regions that permanent DTCs are not regulated by law.