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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 471 (Automatic Transmission (Re5R05A) (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC U1000: Can Comm Circuit >> DTC Description >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

DTC

Item

(CONSULT screen terms)

A/T CHECK indicator lamp judgment flicker

Diagnostic item is detected when...

Possible cause

U1000

CAN COMM CIRCUIT

17th

TCM is not transmitting or receiving CAN communication signal for 2 seconds or more.

  • Harness or connectors

    (CAN communication line is open or shorted.)

  • TCM