Louis,
The 4P1236 is a magnetic reluctance type sensor which produces an AC voltage as the magnetic field is exercised. The resistance value of this part is 280-410 ohms. If I can assist further please let me know, I will assist as best as possible.
Jim Gehl
CMAT & L1
Wells Vehicle Electronics
Fond du Lac Wi. 54936
920.929.6257
800.558.9770
