Anyone here ever change one? if So where exactly is it located. FYI My S40 is in Limp mode (3rd gear) with the Up Arrow flashing OBDII reading code for GPS. Found one for 80 bucks on line and will change it but looking for any help in doing the switch out. Thanks in advance

 

ok jobs done
1. get a bucket for screw/bolts
2. tools: 10, 12 &13 mm sockets,a and same size combo wrenches also 7/8 box wrench flathead screwdriver needle nose pliers. wheel chocks
3. apply e brake disconnect battery & Remove
4. remove air filter box (top & Bottom) detach all eletrical wiring harness'
5. unbolt fuse box move out of way
6. unplug the unit and remove plastic wire ties (these are reusable)
7. note & mark the positon of the shaft thast runs up out of the trani thru the unit
8. unbolt the cable hold down bracket to the left of the switch
9. losen the bolt ans stud that hold the unit to the trani case
10 remove the cable hold down bolt of the switch then use the screw driver to pop the cabe free from the switch
11. bend the big bolt locking tabs flat use te 7/8ths box wrench while holding the shaft that runs up thru it with the 100 mm open end side of the wrench. if you turn it while loosening this nut the car will move out of park so hold the shaft w/o stripping the threads as you remove the big nut
12. then finish removing the bolt and shaft that fasten it to the trani
13 reassemble in revese order.

 

ok jobs done
1. get a bucket for screw/bolts
2. tools: 10, 12 &13 mm sockets,a and same size combo wrenches also 7/8 box wrench flathead screwdriver needle nose pliers. wheel chocks
3. apply e brake disconnect battery & Remove
4. remove air filter box (top & Bottom) detach all eletrical wiring harness'
5. unbolt fuse box move out of way
6. unplug the unit and remove plastic wire ties (these are reusable)
7. note & mark the positon of the shaft thast runs up out of the trani thru the unit
8. unbolt the cable hold down bracket to the left of the switch
9. losen the bolt ans stud that hold the unit to the trani case
10 remove the cable hold down bolt of the switch then use the screw driver to pop the cabe free from the switch
11. bend the big bolt locking tabs flat use te 7/8ths box wrench while holding the shaft that runs up thru it with the 100 mm open end side of the wrench. if you turn it while loosening this nut the car will move out of park so hold the shaft w/o stripping the threads as you remove the big nut
12. then finish removing the bolt and shaft that fasten it to the trani
13 reassemble in revese order.
oh and its located on the left side front next to the battery atop the trani just next to the trani dip stick

 

GREAT description!! Thanks! My 2001 S40 has been throwing code P0705 and P0700 for a while now, but has always run just fine... "Rowing" through the gears (Park thru Low, 15 - 20 times) has cleared up the "sensor" issue and turned off the Flashing Arrow.

However, this has been recurring more frequently now, so I think I'm going to replace the PNP / GPS. I feel a little braver after reading this post. Thanks!