LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 510 (Manual Air Conditioner (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC B257B: Ambient Sensor >> Component Inspection

Component Inspection

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.
  1. CHECK AMBIENT SENSOR 
    1. Turn ignition switch OFF.
    2. Disconnect ambient sensor connector.
    3. Check resistance between ambient sensor terminals.

      Terminal

      Condition

      Resistance kOhm

      Temperature deg. C (deg. F)

      1

      2

      -15 (5)

      12.73

      -10 (14)

      9.92

      -5 (23)

      7.80

      0 (32)

      6.19

      5 (41)

      4.95

      10 (50)

      3.99

      15 (59)

      3.24

      20 (68)

      2.65

      25 (77)

      2.19

      30 (86)

      1.81

      35 (95)

      1.51

      40 (104)

      1.27

      45 (113)

      1.07

    Is the inspection result normal?

    YES

    Inspection End.

    NO

    Replace ambient sensor. Refer to Removal and Installation .