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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 569 (Automatic Transmission (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC P0778: Pressure Control Solenoid B >> 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

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

Possible cause

P0778

PC SOLENOID B

(Pressure Control Solenoid "B" Electrical)

When all of the following conditions are satisfied and this state is maintained for 0.48 seconds:

  • TCM power supply voltage: More than 11 V
  • TCM judges that solenoid valve circuit is shorted to ground.
  • Harness or connectors

    (Secondary pressure solenoid valve circuit is shorted to ground.)

  • Secondary pressure solenoid valve