₦airaland Forum

erico2k2:
True
@ GAZZUZZ, I think this is what I found at with my fan hence I made reference to it.I think my car has one of those fans controlled by the ECU and not a fuse and relay set up.cos U can never directly run wires from the battery to it to make it work it wont work, I tried it, I ended up buying a brand new fan still did not work.Problem was a stuck heating valve and leaky radiator. 318Ci 2002

cocoduck:
did you connect it to the DC motor itself? There must be power and ground for it to work, the fan is Pulse Width Modulated, one is constant and the other is pulsed (ground and power), if you test it with a scope you will get a square wave, which is called duty cycle ( one of my friend says Dootie saikle) on and off signal, at the end it is still power and ground, maybe you didn't test the correct wires, you know these Germans and their over engineering, very simple things become soooooooo complicated and complex, (it is not your fault BTW). The same system is used in Toyota matrix I think from 2003 to 2008 to be precise, in the factory service manual, they showed how to test the fan itself.

cocoduck:
did you connect it to the DC motor itself? There must be power and ground for it to work, the fan is Pulse Width Modulated, one is constant and the other is pulsed (ground and power), if you test it with a scope you will get a square wave, which is called duty cycle ( one of my friend says Dootie saikle) on and off signal, at the end it is still power and ground, maybe you didn't test the correct wires, you know these Germans and their over engineering, very simple things become soooooooo complicated and complex, (it is not your fault BTW). The same system is used in Toyota matrix I think from 2003 to 2008 to be precise, in the factory service manual, they showed how to test the fan itself.

GAZZUZZ:
Both have a role. Knowing when to use which is important. Quick diagnosis of "certain" circuits can be done with ease using a 12v bulb, with the right rating. Nothing about falling hand, just being realistic. A DMM will give you voltage, a bulb will give you a perception of the amount of current you are working with.

Siena:
[color=Blue]
I had a technician from a local garage testing pulses to injectors using a bulb, and of course, he got nothing. He ripped out the wiring harness, and when replacement gave the same results, he concluded the ECU was bad. £1200 later, the car still wouldn't run. This is when the car was towed to my place. The fault? A blown 15A fuse that feeds the switched 12V+ which is common to all the injectors. This was in a 2009 Mercedes-Benz E320. Cost of repair? Half an hours labour, and .76p for a fuse.

It could have been worse, God knows what this garage billed their customer (I didn't get to meet him / her).[/color]

ZIMDRILL:

i thought you are clever than this

you dont need both you need the multimeter as it works a multi tool

where you probe with bulb the multimeter can do that, it will show you the voltage than the bulb, the bulb will only light but it doesnt show voltage and also the multimeter will show you polarity, the bulb will not

the bulb is an emergency replace diy tool to use while stack in the bush without the right tool

but yes i agree that its about knowing when to use it

I want to say somthing, but in the interest of peace.

ZIMDRILL:
i thought you are clever than this

you dont need both you need the multimeter as it works a multi tool

where you probe with bulb the multimeter can do that, it will show you the voltage than the bulb, the bulb will only light but it doesnt show voltage and also the multimeter will show you polarity, the bulb will not

the bulb is an emergency replace diy tool to use while stack in the bush without the right tool

but yes i agree that its about knowing when to use it

Siena:
[color=Blue]The average Nigerian is way too sensitive, and will always equate being blunt with rudeness. I get it all the time. I state my opinion brusquely, and I get attacked for being rude. I've kind of come to the opinion, you need to have a thick hide to interact online, otherwise it's best if you don't bother.

ZIMDRILL was blunt in his response, but I would not say he was rude, that's just the way he is. Most of his comments are put across in a similar fashion.[/color]

kingreign:
Your comment is way too rude. Na wa for you, learn to speak in a matured manner.

GAZZUZZ:
I want to say somthing, but in the interest of peace.

kingreign:
Your comment is way too rude. Na wa for you, learn to speak in a matured manner.