Q&A

I have a 2002 Honda Odyssey and I replaced the rear main seal because of an oil leak after putting it back together it wont shift out of park, and the D light on the dash comes on and then goes out after a few seconds, also the check engine light blinks 5 times and it wont move out of park and it wont start at all. The brake lights are working and I have checked all conections, I am pretty sure it is the gear position sensor because P R N are not lit up when the key turns on?