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Home >> Infiniti >> 1992 >> G20 Automatic >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Instrument Panels >> Testing >> Temperature Gauge >> M30

Temperature Gauge: M30

  1. To check power source, turn ignition on. Check voltage between terminal No. 14 and ground. See Figure . If battery voltage is present, go to step 3).
  2. If battery voltage is not present, check for blown fuse or fusible link. Check continuity between battery terminal and instrument cluster. Check battery circuit from ignition switch and relay. See appropriate chassis wiring diagram in the WIRING DIAGRAMS  Section.
  3. Turn ignition on. Connect a jumper wire with a 3.4 watt light bulb between fuel gauge terminal "B" and ground. If gauge needle does not move smoothly from COLD to HOT, replace temperature gauge. If needle moves smoothly from COLD to HOT, check wire continuity between terminal No. 6 and ground.
  4. If continuity is not present, repair or replace wire harness between instrument cluster and temperature gauge sending unit. If continuity exists, test temperature gauge sending unit. See TEMPERATURE GAUGE SENDING UNIT  under TESTING.
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