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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 318 (Engine Control System (DTC/Circuit Diagnosis) (4.0L) (3 Of 4)) >> DTC/Circuit Diagnosis >> DTC P0850: PNP Switch >> DTC Description >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2018 Nissan NV3500 HD, 2018 Nissan NV2500 HD, and 2018 Nissan NV1500. However, it is still accessible from the selected car via links, so may be relevant.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0850

P-N POS SW/CIRCUIT

(Park/neutral position switch)

The signal of the park/neutral position (PNP) signal does not change during driving after the engine is started.

  • Harness or connectors

    [Park/neutral position (PNP) signal circuit is open or shorted.]

  • TCM