Welsh Kiwi's Build Thread - 275GTB

[Jaguartvr]

I'm presuming yours is a facelift car. There is an issue with not being able to read fault codes from the round plug under the bonnet.
I can read from the plug under the steering wheel but nothing from the plug under the bonnet.
This link should help you solve it.........hopefully. I haven't tried anything yet because my electrical knowledge stops at putting a fuse in a plug.

http://techiesexpedition.blogspot.co...-2-liters.html

[Welshkiwi]

Originally Posted by Jaguartvr

I'm presuming yours is a facelift car. There is an issue with not being able to read fault codes from the round plug under the bonnet.
I can read from the plug under the steering wheel but nothing from the plug under the bonnet.
This link should help you solve it.........hopefully. I haven't tried anything yet because my electrical knowledge stops at putting a fuse in a plug.

http://techiesexpedition.blogspot.co...-2-liters.html

Thanks for the link Jag, I’ll have a read but it might be past me as well! I am plugged into the under the steering wheel location, scanner says it is connected, shows revs etc when engine running and says connected to ecu, but draws a blank when asked for codes, just says none stored in ecu. Once I plug everything back in it will be interesting to see if it self resets. I thought I might get some snags like this once I start looking at bypassing pretensioners, seat belt buckling as well as passenger seat occupancy pad. Possible backstop will be remove seat belts from car and reattach the clever bits under the seat with the belt tangs coupled which should stop the gizmos being unhappy. 3.3ohm resistors should then take care of the steering wheel and passenger airbag circuits.
I’ll play a bit more tomorrow if I get a chance....

[casamolino]

Originally Posted by Jaguartvr

I'm presuming yours is a facelift car. There is an issue with not being able to read fault codes from the round plug under the bonnet.
I can read from the plug under the steering wheel but nothing from the plug under the bonnet.
This link should help you solve it.........hopefully. I haven't tried anything yet because my electrical knowledge stops at putting a fuse in a plug.

http://techiesexpedition.blogspot.co...-2-liters.html

Good morning on my facelift car it was the opposite more codes could be seen and reset by using the under body unit rather than the under dash one , thanks geoff .

[Welshkiwi]

Hey thanks for the imputs guys. It seems upon further research and the info supplied by casamolino/Geoff it looks likely I need the 20 pin scan tool for the SRS/airbag system.

I’ll get one and see if I can reset the codes. I may have nailed the resistances after all. Let’s see........