have a bit tougher query for you!!!!!
To the second part, when we started to find the wiring for the cooling fans, we found out that there is originally two wires posted in the manual for ECU pinout, i.e. high speed cooling fan relay, low speed cooling fan relay, but when i checked, there was only one wire present in my wiring, i.e. of low speed relay, and then Imran discovered that my fans are also single speed, so the high speed fan relay scenario was out of question.
Now, when we tracked down the current system which was operating the cooling fans, we found out that those were operated directly via the Thermstat switch type thing, which I could not remember the exact name of, to explain, two wires were coming out of an elbow underneath which there is supposidly thermostat valve resides.
Ok, from there, the wires were going to relay box, and operating a blue relay, the relay was then operating the fans.
Ok, we figured out that with AC, both fans are on directly when the AC switch is on, else, only one fan operates.
Next, we found out that the fans were operating without the exact temperature reached i.e. when the checked from the wire that was marked in the ECU as "cooling fan relay slow speed", it was not giving current. But when we disconnected both fans and put the AC on and heated the car a bit, it gave 13 volts to the "cooling fan relay slow speed" wire. We turned the fans on and as soon as the engine gets cool, the volts gone, but the current pattern of operating the fans is different. It is operating periodically like when the temperature reaches a bit less half, it starts switching fans on for five seconds, and then shuts, then starts again....
Now, in the wiring diagram of the ECU pinout, the wire for Blower fan Switch and AC Switch gets 0 volts when engine is running and switch is on, so we grounded the both wires and gave the 12 volts to AC relay wire and put that to on, but damn It did not work and did not operate the "cooling fan relay slow speed". Now this is a problem. It should give signal to cooling fan to operate when AC and blower fan switch is on. but it is not. I think we are missing something again.