my temperature gauge not working

1992 TOYOTA COROLLA
934,986 MILES • 0.6L • 4 CYL • FWD • AUTOMATIC
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KENNYFAN
  • MEMBER
  • 8 POSTS
my temperature gauge is not working. what can it be? anyone?
Feb 7, 2017 at 3:21 PM
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CARADIODOC
  • CERTIFIED EXPERT
  • 34,306 POSTS
Bad gauge, broken wire, corroded connector terminal, and least likely, a defective sending unit.

Unplug the wire from the sending unit, then ground that wire with a jumper wire. If the gauge reads full-hot, suspect the sending unit or its terminal is rusty.
Feb 7, 2017 at 3:56 PM