Check Engine Light and No Cooling Fan

[niwde11]

Suddenly my original thread got lost

Take two
car = 00 civic lxi
check engine light and no cooling fan

Eto mga ginawa bago nangyari. Wed, kinalas front suspension plus the engine support(passenger side). Remove also the battery. Naibalik din lahat on day 1. Day 2, palit engine oil+ filter and the atf. then nun start na ilaw ang check engine sa dash. di raw umaandar ang cooling fan ng radiator kahit mainit na makina. tumawag ng electrician. walang ground sa relay ng fuse box(beside the battery). check the relay inside the cabin, di raw nagbibigay ng negative signat to the fuse. "pansamantagal" since malapit yung fuse box sa battery nilagyan muna ng wire from the neg ng battery to the negative ng relay sa fuse box. as of now ikot ang cooling fan pag punta sa on ng ignition so di muna sya automatic.

Now, what went wrong. anyone from here experienced same thing. tia

[mazdamazda]

Weird problem... are you bringing it to Speedyfix tom?

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bigbigcar.com Review: Nissan Frontier Navara 4x4 LE MT

[niwde11]

updat/addl info.

when i start the engine para igarahe, di umilaw yung CEL. kala ko okay na. open the hood, remove the temporary wire connected sa neg ng battery and dun sa neg ng relay(fan), ayun umilaw ule ang CEL. so pag me existing neg ground yung relay, di na iilaw yung CEL after starting the engine.

[4JGtootsie]

Pag open ang any vital circuit CEL will light up.
Computer box reads temperature sensor and actuates the fan to stop or run. Without one or more of these sensor and or actuators functioning will activate CEL.

[voltscastillo]

hmm...

broken temp sending unit OR broken thermoswitch, or both, are my guesses.

thermoswitch controls the fan. pirming nasisira sa mga honda EK ito. maybe the works done on your car dmaged it?

[bambino]

kailangan jan ng scanner and diagram to properly diagnose the problem