This will be a long thread... I do apologise but I am useless with electrics so bear with me.
I need to wire in the OBD2 diagnostic port back into the buggy as I have a fault and this will be an easier way to find it (i hope)
I have the OBD2 port and luckily I left tails on it... which makes things easier...
So the wire colours I have are... and I have pinpointed what they do as well
Bottom row from left to right...
Purple (P) = Ignition live through a 15 amp fuse
Yellow Pink (YK) = Air bag Control unit
Top row from left to right
Pink (K) = Goes to MEMS ECM (467) & ABS Control Unit 229
Black (B) = Earth
Red Blue (RU) = Goes to Alarm ECU (752)
Orange Blue (OU) = Goes to Alarm ECU (752)
MGF Diagnostic Socket wiring
Re: MGF Diagnostic Socket wiring
Below are all the wiring diagrams and I have highlighted the areas of interest
Re: MGF Diagnostic Socket wiring
So from my very limited wiring knowledge I need to do the following...
Purple (P) = Ignition live through a 15 amp fuse <=== Get 12v to this via an ignition live....
Yellow Pink (YK) = Air bag Control unit <=== no idea... do I even need this?
Pink (K) = Goes to MEMS ECM (467) & ABS Control Unit 229 <=== join this wire to the same colour coming out at the other end of the 467 however I dont have an ABS control unit...
Black (B) = Earth <=== oooh I can do this one easy enough
Red Blue (RU) = Goes to Alarm ECU (752) <=== find the same coloured wire on the 752 unit and join
Orange Blue (OU) = Goes to Alarm ECU (752) <=== find the same coloured wire on the 752 unit and join
Then plug in my OBD2 reader and switch ignition to pos 1 and hope..
Does this seem about right?
Purple (P) = Ignition live through a 15 amp fuse <=== Get 12v to this via an ignition live....
Yellow Pink (YK) = Air bag Control unit <=== no idea... do I even need this?
Pink (K) = Goes to MEMS ECM (467) & ABS Control Unit 229 <=== join this wire to the same colour coming out at the other end of the 467 however I dont have an ABS control unit...
Black (B) = Earth <=== oooh I can do this one easy enough
Red Blue (RU) = Goes to Alarm ECU (752) <=== find the same coloured wire on the 752 unit and join
Orange Blue (OU) = Goes to Alarm ECU (752) <=== find the same coloured wire on the 752 unit and join
Then plug in my OBD2 reader and switch ignition to pos 1 and hope..
Does this seem about right?
Re: MGF Diagnostic Socket wiring
Phaeton wrote:Have a read here
https://forums.mg-rover.org/mgf-mgtf-12 ... ost4768017
Mine is a 2001 mgf.... so should be able to read with my obd2
Re: MGF Diagnostic Socket wiring
I wired it all in apart from one wire which was the yellow and pink and I got a link error... no idea what to do next.
Re: MGF Diagnostic Socket wiring
That pin out seems to be missing the rx/tx comms link line - or its going via one of the other lines somehow
Re: MGF Diagnostic Socket wiring
ChaosMS wrote:That pin out seems to be missing the rx/tx comms link line - or its going via one of the other lines somehow
It would appear that mine is early so cant be read with anything other tha n an MG reader... I have a friend with one so will see if that works and if my wiring is good enough
Re: MGF Diagnostic Socket wiring
Ok so a friend dropped the reader round and on friday I tried to get it to read and it was not having any of it.
However today I tried and actually followed on screen instructions and got the error codes....
So the good news is that I know my wiring works and also means I am 1 step closer to finding out what this fault it
However today I tried and actually followed on screen instructions and got the error codes....
So the good news is that I know my wiring works and also means I am 1 step closer to finding out what this fault it
Re: MGF Diagnostic Socket wiring
I think the top error is an old error as in the early days the fans stopped and that was the sensor
Re: MGF Diagnostic Socket wiring
It is a start but after reading lots of forums the ambient sensor will kick out an error if it is not plugged in
Re: MGF Diagnostic Socket wiring
also I was told that the older ECU wont log the error of a misfire as well... so possibly diagnostic reader is pointless
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