MEGANE 2003 WANT START

[eliasole]

Hi to all.
I have a problem with megane 2003 year 1.6 petrol sagem s3000
When i put card and try to start with brake and clutch , car dont do anything , at instrument says electronic fault and blower motor works all the time.
I cant communicate with engine control module.
I can with all others.
faults to other ecus is b1403 in instument ,b120d , and c1601 in steering.
I need your help.
Thanks!!!!

[justy22]

Pull earth lead from battery for 30 secs, then try again



Hi to all.
I have a problem with megane 2003 year 1.6 petrol sagem s3000
When i put card and try to start with brake and clutch , car dont do anything , at instrument says electronic fault and blower motor works all the time.
I cant communicate with engine control module.
I can with all others.
faults to other ecus is b1403 in instument ,b120d , and c1601 in steering.
I need your help.
Thanks!!!!

[leandroks]

Take the fuse fox check it it is commum bad contact there.

[eliasole]

Pull earth lead from battery for 30 secs, then try again

Already do it as batery gone glat with blower


Take the fuse fox check it it is commum bad contact there.

you mean fuse box in cambine , because fuse box in batery already ispected.

[justy22]

are you sure its the blower and not the power steering pump you hear

[eliasole]

are you sure its the blower and not the power steering pump you hear


yes!!! ;)

[albertros]

If its the cooling fan the car does not know what temp it is so puts the fan on.
You will find it is a faulty ecu or the wires going to it.
Check the loom at the front of the battery case for damage or rubbing through.
Then check the power supply / earths to the ecu / and the fuses on the battery terminal.

[Ashraf6119]

Is this Petrol or Diesel Engine..........?

And when you say the Blower Motor stay ON all the time.......Is it the Radiator Fan or, the Heater Blower Motor in side the Cabin..........

[eliasole]

As i say its petrol , when card is in ,blower (radiator) works in hi speed , when is out works in low speed.
to stop blower i have to remove battery earth.
If i connect battery again , blower it doesnt work until the first attempt to start the car.

[Ashraf6119]

OK you have lost the power to the Engine ECU..........

1) Are you sure you have checked all the fuses and relays in Engine Bay fuse box......There are 3 fuses on Battery Terminal check them again.........

2) Check the Fuse Box in Engine Bay for any water or damp in there..........remove the fuse box out and check it properly......

3) Check the wiring loom from ECU towards the Battery corner for broken wire..........

[morfej]

As Ashraf6119 already suggested you should check that engine fuse box (UPC).

Take it out of the plastic and check that relay I marked on the picture. Especially check that PEM commector if you see water traces.

br

[Ashraf6119]

As Ashraf6119 already suggested you should check that engine fuse box (UPC).

Take it out of the plastic and check that relay I marked on the picture. Especially check that PEM commector if you see water traces.

br

Those marked 2 pins are very common and do get rust and brake so look in there properly............

[eliasole]

As Ashraf6119 already suggested you should check that engine fuse box (UPC).

Take it out of the plastic and check that relay I marked on the picture. Especially check that PEM commector if you see water traces.

br


So true , the rack under the relay as i show at pic was cute , thanks a lot for the good info , problem solved.

[justy22]

So true , the rack under the relay as i show at pic was cute , thanks a lot for the good info , problem solved.

What you mean is the Track on the circuit board has been cut with corrosion

[eliasole]

What you mean is the Track on the circuit board has been cut with corrosion

the track under the relay (i have to move it) to see .