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Temperature Gauge Test

WARNING: This page is about a different car, the 1993 Honda Prelude. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Turn ignition off before gauge pointer reaches "H" mark. Failure to turn ignition off before pointer reaches "H" mark may damage gauge.
CAUTION: Turn ignition off immediately after all gauge segments illuminate. Failure to turn ignition off immediately may damage gauge.
  1. Ensure ignition switch is in OFF position. Disconnect and ground Red wire on coolant temperature gauge sender. Turn ignition switch on. Ensure all light segments of gauge illuminate properly.
  2. If gauge light segments do not illuminate, check fuse No. 13 (10-amp). Check Red or Yellow wire for an open circuit. If fuse and wiring are okay, replace temperature gauge. If gauge is okay, test temperature gauge sending unit.
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