Need help po sa Altis ko

**littlejohn** · February 12th, 2009 10:07 AM

need help po. My Toyota Altis 02 at cold or pag mag start palang naka ON agad ang AUX FAN. Pina diagnose ko na ren sa 1 branch ng Toyota hinde ren nila ma troubleshoot. I was thinking baka yun thermo switch(sending unit) ang defective. Baka somebody here po could help me fixing my car back to original function yun Auxfan na may ma recommend na electrician, shop o magaling mag troubleshoot & fix ng mga ganitong problem. Kindly text me * 09273853835. Salamat po

**bambino** · February 12th, 2009 12:04 PM

hanap ka ng shop na may scanner na capable to read and display codes and data.

or go back to the toyota dealership and make a suggestion to monitor all the sensors that may set the cooling fan to turn on .

these sensors are the best bets;

coolant temp sensor or thermoswitch,A/C signal received by computer ,

or it's just the cooling fan circuit problem itself ( possible wire or relay problem)

**Galactus** · February 12th, 2009 12:29 PM

Hindi kaya naka-rekta yung aux fan sa battery? Pinagawa mo na ba before yung sasakyan mo?

Some mechanics kasi, pag nagloloko yung thermoswitch, ganun ang ginagawa. Rekta sa battery yung aux fan.

**littlejohn** · February 13th, 2009 06:44 PM

Sir Bambino, na try ko na po sa 1 branch ng Toyota. Still hinde po nila ma trace and gumamit na ren po sila ng pang Diagnose normal daw po lahat. Kaya maybe kung hinde ako makahanap ng shops, or top reccomended na Electrician/shop dito sa forum ng Tsikot ng mga members. Siguro try ko po ulit sa ibang dealer ng Toyota. Salamat po ng marami Sir Bambino

To Sir Galactus, hinde ko pa po sya napagawa sa labas. Salamat din po Sir Galactus

**oj88** · February 13th, 2009 07:20 PM

Originally Posted by littlejohn

Sir Bambino, na try ko na po sa 1 branch ng Toyota. Still hinde po nila ma trace and gumamit na ren po sila ng pang Diagnose normal daw po lahat. Kaya maybe kung hinde ako makahanap ng shops, or top reccomended na Electrician/shop dito sa forum ng Tsikot ng mga members. Siguro try ko po ulit sa ibang dealer ng Toyota. Salamat po ng marami Sir Bambino

To Sir Galactus, hinde ko pa po sya napagawa sa labas. Salamat din po Sir Galactus

Check if the Fan Relay #1 is stuck.

**s_quilicot** · February 13th, 2009 07:33 PM

aux fan?

do you mean the big fan behind the radiator?

altis doesnt come with aux fan infront of the radiator/ aircon condeser.

**littlejohn** · February 14th, 2009 12:41 AM

Yes sir s_quilicot yun big fan behind the radiator.

**bambino** · February 14th, 2009 01:09 PM

kailangan talaga diyan pinpoint diagnostics , individual component isolation within the cooling fan circuits with the aid of CIRCUIT DIAGRAM at marunong na AUTO TECH

**Horsepower** · February 14th, 2009 01:20 PM

What is the problem if your aux fan runs before starting the engine?

But yeah, 2 lang ito, either relay or thermostat.

**v6dreamer** · February 15th, 2009 03:53 AM

The most likely cause if your electric fan relay is stuck in the closed position. (Better to be stuck in closed and fans always on, then stuck in open and the fans never turn on)

A bad temperature sensor can also cause this problem, but the stuck relay is much more likely.

Typically the thermostat can contribute too but it has nothing to do with the fans being always on, unless it's overheating