Long story as short as possible.
2004 3.0i no issues.
Fitted 07 M-sports.
Plugged new passenger occupancy sensor direct into yellow plug since it didn't fit with the old black box.
INPA said issue with drivers pre-tensioner circuit (though it said it wouldn't light the warning lamp) so warning light on. Plug to pre-tensioner was damaged so assumed a short possibly or something else.
Occupancy sensor works fine. Passenger in without seatbelt, it beeps, add seatbelt, it goes off, and so on.
INPA seat diagnostics show it works fine too.
Bought new cable for drivers side fault (years ago haha)
Fitted it today, but light still on.
Did more looking in diagnostics and INPA says the passenger seat occupancy sensor is working, (marker goes on and off as you press the seat) but it also flags an error light at the same time.
Dashboard has an error saying seat is sending it a lamp illumination request but for no apparent fault.
So it *feels* like there is no functionality issue, all systems report ready to work in the event of a crash, occupancy sensor has always worked, no weird going off with beeping when the seat is empty etc, but it just looks like the car isn't happy the sensor isn't what it expects (despite it technically working) so it's flagging a SIM error and flagging the light to come on.
So would a by-pass cable fix this issue?
I assume this simply tells the car that the seat is always occupied (via an appropriate "occupied" signal), and the same with the seatbelt clip which then has to be set to always clipped?
But is there any coding solution? It really does seem like the light is only there to tell me that the sensor is technically the wrong one despite it functioning perfectly correctly. I've read Autologic kit might simply be able to turn off the sensor mat elements and run the seat... not sure how it then deals with seatbelt warning though.
I have an MOT in a few weeks and need to get this sorted for this year I think.
One last thing I noticed was that the passenger seat had two cables coming from under the carpet to the yellow multi-plug. Is that normal vs the drivers side?
Any help much appreciated.
edit: just read about replacing the occupancy sensor with a pre-facelift one and replacing the box (sold mine with the old seats), so that the car is seeing what it expects to see (old sensor and box).
I can just throw the sensor on the seat and swap the plug over for the MOT and go about sorting the fitting into the seat itself whenever.
Anyone else done a pre-facelift sensor mat (are they same in both standard and m-sport seats?) into facelift m-sport?
Dave
2004 3.0i no issues.
Fitted 07 M-sports.
Plugged new passenger occupancy sensor direct into yellow plug since it didn't fit with the old black box.
INPA said issue with drivers pre-tensioner circuit (though it said it wouldn't light the warning lamp) so warning light on. Plug to pre-tensioner was damaged so assumed a short possibly or something else.
Occupancy sensor works fine. Passenger in without seatbelt, it beeps, add seatbelt, it goes off, and so on.
INPA seat diagnostics show it works fine too.
Bought new cable for drivers side fault (years ago haha)
Fitted it today, but light still on.
Did more looking in diagnostics and INPA says the passenger seat occupancy sensor is working, (marker goes on and off as you press the seat) but it also flags an error light at the same time.
Dashboard has an error saying seat is sending it a lamp illumination request but for no apparent fault.
So it *feels* like there is no functionality issue, all systems report ready to work in the event of a crash, occupancy sensor has always worked, no weird going off with beeping when the seat is empty etc, but it just looks like the car isn't happy the sensor isn't what it expects (despite it technically working) so it's flagging a SIM error and flagging the light to come on.
So would a by-pass cable fix this issue?
I assume this simply tells the car that the seat is always occupied (via an appropriate "occupied" signal), and the same with the seatbelt clip which then has to be set to always clipped?
But is there any coding solution? It really does seem like the light is only there to tell me that the sensor is technically the wrong one despite it functioning perfectly correctly. I've read Autologic kit might simply be able to turn off the sensor mat elements and run the seat... not sure how it then deals with seatbelt warning though.
I have an MOT in a few weeks and need to get this sorted for this year I think.
One last thing I noticed was that the passenger seat had two cables coming from under the carpet to the yellow multi-plug. Is that normal vs the drivers side?
Any help much appreciated.
edit: just read about replacing the occupancy sensor with a pre-facelift one and replacing the box (sold mine with the old seats), so that the car is seeing what it expects to see (old sensor and box).
I can just throw the sensor on the seat and swap the plug over for the MOT and go about sorting the fitting into the seat itself whenever.
Anyone else done a pre-facelift sensor mat (are they same in both standard and m-sport seats?) into facelift m-sport?
Dave