temp gauge goes right to "H" right on start up and the gauge cluster doesnt light up. i have been trying to locate all of the grounds hoping to find one disconnected.I have also replaced the temp sensor and have found no blown fuses and no blown bulbs in the cluster. Curently out of ideas. help needed

 

MM&Y of car??? 94

 

92 civic si

 

Pull cluster and meter the red/black lead, [power for dash lights and should be 12V+ when park/head lights are on] meter red lead, [ground for dash lights and should be ground, "veritable" as you adjust "Dash Lights Brightness Controller"].

For temp gauge test for continuity to ground on temp lead, should be a yellow/green, should be no more then about 140 ohms, [cold engine] 50-30 ohms when engine at running temp.
Check for continuity on yellow/green between sensor and gauge. 94

 

so far i have tested the temp sensor i got 77 omhs the engine probably wasnt all the way warm didnt drive it just let it run for a few. as i was testing it the omhs slowly went down like i should if it was still getting warmer. so i think that the gauge is probably bad. can the gauge be replaced or do i need a new cluster

 

Sorry, not sure just the gauge, on a 92 Civic, can be replaced, I would think so, one way or another. 94

 

you can take the gauge cluster appart and replace the gauge with a used one I am not sure if they are avil new. Here is a link for the exploded veiw with parts and price better of gett it used
http://www.hondaautomotiveparts.com/...TER+COMPONENTS

 

thanks for the help. i will be replacing the whole cluster with one from the junk yard and probably the dimmer switch also

 

http://shop.ebay.com/items/_W0QQ_nkw...romZR40QQ_mdoZ 94