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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 614 (Heater & Air Conditioning Control System (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC B2797: Communication Error >> DTC Description >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

DTC

Items

(CONSULT screen terms)

DTC detection condition

Possible cause

B2796

Communication error

When A/C auto amp. is not transmitting or receiving communication signal for 2 or more seconds.
  • Rear control unit
  • A/C auto amp.
  • Harness and connector

    (Communication line is open or shorted)

B2797

When display control unit is not transmitting or receiving communication signal for 2 or more seconds.

B2798

When rear control unit is not transmitting or receiving communication signal for 2 or more seconds.
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