I do believe that we had this discussion before.
RC5/EC5 controllers are preprogrammed and cannot be reprogrammed by use of T4. They can be ordered as:
- Single (driver) airbag controlles - part number for ordering new is YWJ101220
- Dual airbag controllesr - part number for ordering new is YWJ101230
AB Autoliv controlles are programmable by T4 and are bought unprogrammed as new with part number YWJ000290
For RC5/EC5 controllers you have various numbers written on them and if you are buying them as second hand you will have advertised only these part numbers. What is recognized is as follows:
- Single (driver) airbag controllers can have any of following numbers written on them: YWC001600; YWC105400; YWC105320
- Double airbag controllers can have any of following numbers written on them: YWC001610; YWC105410; YWC13380
Since same controlles are used across MG-Rover range of cars other numbers might as well be written on controllesr, but it would need to be checked if they are single airbag or dual airbag modules. Check might be easy if you know from which car controller is coming.
Read More...
I will add some information here.
Seatbelt pretensioners changed from red connector one to yellow connector one with MG TF serial number 4D 620549. That is the serial number from which alarm system changed from Lucas to Pektron. That is because how Lucas and Pektron system receive information about if or not seatbelt is buckled-up or not in order to lit dash light.
Airbag ECU changed from RC5/EC5 model to AB Autoliv model with MG TF serial number 5D 639631. That means yellow connector seatbelt pretensioners worked on both systems: RC5/EC5 and AB Autoliv.
Having this in mind change of pretensioners might work for part of airbag ECU but will not work for part regarding seatbelt warning light on dash.
Read More...
On OEM low coolant alarm you need to make short circuit from black to green/black wire in order to trigger the dash light.
Read More...
PRT was used starting from VIN 622951 which corresponds with date 13/08/2003.Is there a specific VIN or date, when the PRT was taken into use as standard?
Read More...
In case of MEMS 3 engine bay air temperature sensor is connected to small engine ECU connector pin 71
and bigger engine ECU connectors pinm21 and 37. Same wire goes to pin 37 and above mentioned pin 71
My suggestion would be to check what is connected to these pins (what wire colours, are they just looped, check continuity).
Read More...
Engine bay air temperature sensor was deleted in mid/second half of 2004 starting from VIN RD 634869 in the same time when low coolant sensor was fitted to expansion tank on MG TF cars.That is my understanding, After a bit of research I'm wondering if my ECU is to early and looking for the AAT sensor, I'm currently unsure if all Pektron cars used the coolant sensor or if some still used the AAT sensor.
Think i read somewhere about the pre cat sensor, but yep doesn't make sense, so probably wrong.
That'll teach me for having right mixed bag of stuff.
MG TF from VIN RD 632424 to RD 634868 had low coolant alarm wiring fitted but no sensor fitted to expansion tank and therefor you would have checking of low coolant alarm triggered but no sensor - action was needed by T4 to electronicaly shut down that check.
Read More...