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Power Source Circuit

WARNING: This page is about a different car, the 1985 Nissan Maxima and 1985 Nissan 200SX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove instrument cluster with harness connected. Using a volt/ohmmeter, check power source circuit beginning with step 2).
  2. Measure voltage between terminal No. 20 (+) and No. 16 (-). With ignition switch positioned to "OFF", "ACC" or "ON", reading should be 12 volts. See Fig 1 .
    Fig 1: Power Unit Terminal Connector
    G29698Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Measure voltage between terminal No. 19 (+) and No. 16 (-). With ignition switch positioned to "OFF" or "ACC", reading should be zero volts. In "ON" position, reading should be 12 volts.
  4. Measure voltage between terminal No. 18 (+) and No. 16 (-). With ignition switch positioned to "OFF" or "ACC", reading should be zero volts. With ignition switch in "ON" position, reading should be 6.5 volts.
  5. Measure voltage between terminal No. 17 (+) and No. 16 (-). With ignition switch positioned to "OFF" or "ACC", reading should be zero volts. In "ON" position, reading should be 12 volts.
  6. With ignition switch in "OFF" position, measure resistance between terminal No. 16 (+) and body ground (-). Continuity should exist.
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