Heat gauge light comes on
2004 Citroen C3 1.4

Took thermostat out and from time to time the heat gauge lights comes on with alarm but can still open coolant bottel without any problem,does have two sensors a two pin and a one pin how can i test the one and two pin sensors with a multimeter,or what els can be te problem,please help

Problem added: Sep 23, 2021 (2 months ago)
1 points
Citroen C3 (2004)
Problem Category
Electrics, ECU, Warnings & Lights
Replies and fixes
Why was thermostat removed ?
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