Car won't lock - Page 2

suzublu · 17th March 2018, 19:42

Quote:

Originally Posted by championdaddy

EWS........ electric window switch >?

Nope..... no sunroof

EWS = Elektronische Wegfahr Sperre (The Immobiliser ECU)

championdaddy · 17th March 2018, 20:05

Quote:

Originally Posted by suzublu

EWS = Elektronische Wegfahr Sperre (The Immobiliser ECU)

I was close LOL

championdaddy · 19th March 2018, 19:03

oK.....So it seems it MIGHT be the EWS.

Took it off and yes there was green in the connector.

Cleaned the terminals.

But can someone confirm how many pins there should be on the EWS please.

I'm guessing these are coded and cant be just swapped for a new one

Dallas · 19th March 2018, 19:21

Quote:

Originally Posted by championdaddy

oK.....So it seems it MIGHT be the EWS.

Took it off and yes there was green in the connector.

Cleaned the terminals.

But can someone confirm how many pins there should be on the EWS please.

I'm guessing these are coded and cant be just swapped for a new one

If I remember correctly there are 13 pins, but not all are in use, depends if you have an auto etc.

If you have cleaned the pins, that should hopefully be enough, pop it back in and see if its cured the door locking fault.

You could opened the box up for further inspection, its easy to do so.

To have the EWS unit replaced, the firmware from your EWS will need to be copied and transferred over to a donor EWS unit.

m2n · 19th March 2018, 19:22

How would the sunroof affect this? I have one and my car will lock on fob but not unlock.Having to just use the key at the moment

Dallas · 19th March 2018, 19:25

Quote:

Originally Posted by m2n

How would the sunroof affect this? I have one and my car will lock on fob but not unlock.Having to just use the key at the moment

The EWS unit is located directly underneath the O/S sunroof drain tube, if these tubes are blocked, the EWS unit and loom suffers water ingress.

championdaddy · 19th March 2018, 19:38

Quote:

Originally Posted by Dallas

If I remember correctly there are 13 pins, but not all are in use, depends if you have an auto etc.

If you have cleaned the pins, that should hopefully be enough, pop it back in and see if its cured the door locking fault.

You could opened the box up for further inspection, its easy to do so.

To have the EWS unit replaced, the firmware from your EWS will need to be copied and transferred over to a donor EWS unit.

Yes....Mine has 2 larger flat ones....... 1 smaller flat one and 9 pins....

I did take it right out and cleaned with circuit board cleaner.

I just wondered if I have a pin missing as there are only 9 pins not 10.

But it just doesnt look like one has snapped off.

Dallas · 19th March 2018, 19:45

Quote:

Originally Posted by championdaddy

Yes....Mine has 2 larger flat ones....... 1 smaller flat one and 9 pins....

I did take it right out and cleaned with circuit board cleaner.

I just wondered if I have a pin missing as there are only 9 pins not 10.

But it just doesnt look like one has snapped off.

This was mine, I had a broken pin, which does look similar to yours.

championdaddy · 19th March 2018, 19:58

Same ruddy pin. !

Dallas · 19th March 2018, 20:03

Quote:

Originally Posted by championdaddy

Same ruddy pin. !

I also had the door open bleep from the horn problem.

Look up inside the loom plug to see if you can see the pin.

19th March 2018, 19:22	#15
m2n Gets stuck in Rover 75 2004 Contemporary SE 2.5 Auto Join Date: Feb 2018 Location: Preston Posts: 513 Thanks: 67 Thanked 56 Times in 46 Posts	How would the sunroof affect this? I have one and my car will lock on fob but not unlock.Having to just use the key at the moment __________________ To have and not need, than need and not have. Eve was born on: Tuesday 14th September 2004 @ 07.54.23 Date of first Registration: Friday 24th September 2004 She was the: 103,715th 75 to run off production line, out of 112,381 She was the: 382nd 75 2.5 V6 Contemporary SE to be made out of 686 She was the: 1,415th 75 in Firefrost Red (code CEV) to be made out of 2,089 Firefrost Red 75's

19th March 2018, 19:03	#13
championdaddy This is my second home Mg Zt 190 Join Date: Apr 2012 Location: The FIRST Garden City....Letchworth. Posts: 6,778 Thanks: 1,243 Thanked 920 Times in 698 Posts	oK.....So it seems it MIGHT be the EWS. Took it off and yes there was green in the connector. Cleaned the terminals. But can someone confirm how many pins there should be on the EWS please. I'm guessing these are coded and cant be just swapped for a new one

19th March 2018, 19:58	#19
championdaddy This is my second home Mg Zt 190 Join Date: Apr 2012 Location: The FIRST Garden City....Letchworth. Posts: 6,778 Thanks: 1,243 Thanked 920 Times in 698 Posts	Same ruddy pin. !