P1702Auto Trans Diagnosis Input Signal Circuit

 

so i beeen rebuilding transmissions again

and got this code????

i dont know this one

im check 4 wd now

i also got a 0135

but thats o2 and i might have bogarted the o2 in the swap

but i dont "get" this 1702

update

so it has 4wd, allways with bind

put in the fuse and no light but no 4wd either

does not shift out of 1st, does have reverse

no more code after clearing it

im a liitle confused again

normally these things take their clutch and are good

this ones acting like the cyl is bad

but all is new

?????

new clutch pack, cylnoid, gear that was sheared off, so complete tailshaft over hual

trans DID have all gears before

did not have 4wd(broken gear)

Check all your harness connections.

 

That is the signal that tells the ECU that the car has an automatic transmission.

ok will do, car is an auto

(trans and tcu are out of another car, same year/engine/trim)

so there shouldnt be any funny bussiness going on

car original trans had broken pump

so pulled to rebuild(was not able to)

off to check elec

ok will do, car is an auto

(trans and tcu are out of another car, same year/engine/trim)

so there shouldnt be any funny bussiness going on

car original trans had broken pump

so pulled to rebuild(was not able to)

off to check elec

 

 

cleaned and greased all connections

pulled fuse,

still stuck in 4wd and nothin but 1st

are you sure it's only got first gear and isn't just running in limp mode - which would be 3rd? if it's in 1st it's not good for very fast, but 3rd is capable of 60, 70, 80 mph.

 

was the transmission removed for the job? give us as much background as possible, if it was i would check and make sure the harness is fully seated and none of the pins were bent.

are you sure it's only got first gear and isn't just running in limp mode - which would be 3rd? if it's in 1st it's not good for very fast, but 3rd is capable of 60, 70, 80 mph.

 

was the transmission removed for the job? give us as much background as possible, if it was i would check and make sure the harness is fully seated and none of the pins were bent.

 

car was purchased with a broken trans(no 4wd, bad clutch set)

i didnt use it becouse the numbers come back as a 92 model???

the car that provided the trans was purchased for its body

i put the trans straight into the first car

and it worked fine but didnt have 4wd

so i pulled it

and pulled the tailshaft, all done on bench

the rear gear was sheared apart

so replaced gear, clutch pack, and 4wd cylnoid,

put tail shaft back on and put trans back in car

the tcu stays with the transmision so its all good there

i now have 4wd, allways with bind, the fuse does work

but does not light up the dash light(might need a bulb)

does not have bind with the fuse in

does not come out of first(top speed 15???)

does have reverse, does not manually shift into 2nd,ect

the first time i put in the trans the tcu was wrong, and it flashed at me

and what not, but it shifted, now it doesnt shift

i checked 2 big connectors, cleaned and greased and reset(click)

plugs seated nicely

i didnt see any bent prongs

thats what i know

is shifting controlled by the tcu?????

hehe..if the tcu doesn't control shifting then what does it do? Sorry what year and model soob was this again?

hehe..if the tcu doesn't control shifting then what does it do? Sorry what year and model soob was this again?

 

well my buick doesnt have a tcu

so you dont need one, but i dont know what out tcus do

i would hope they do something

96 legacy l 2.2

Ah ok cool, sorry about that. I have a 2.2L '96 too...here's the troubleshooting procedure for P1702. Rebuilding trans sounds interesting. I haven't even pulled an engine yet.... Godspeed to you in figuring this out!

 

car was purchased with a broken trans(no 4wd, bad clutch set)

What MY car was purcased with "broken trans"?

i didnt use it becouse the numbers come back as a 92 model???

Didn't use what?????????????

the car that provided the trans was purchased for its body

What MY was this car?

the rear gear was sheared apart

Which rear gear?

the tcu stays with the transmision so its all good there

What MY TCU do you have in what MY car?

Do you have ADD?

no i do not have add

both cars were 96 model years

i do not use the trans that was in the car becouse the part number said it was a 92 model year trans, and it didnt have 4wd

EVERYTHING USED

both in and of

WAS MY 96

porc thanks

first thing in the mornign and ill run down that list

see what i come up with

so i swaped the TCU and got shifting and AWD back

but now the light is flashing at me again

allways something

so i swaped the TCU and got shifting and AWD back

but now the light is flashing at me again

allways something

have you checked for torque bind? if so does it go away with the fuse installed? a bad duty c will cause flashing. i would have thought if it was the duty c it would have shown up with the other tcu but who knows.? try a third tcu, maybe 2 out of 3 would be a clue to the cause..

Please excuse my corn-fused look

(scratches his frazzled old bean)

 

Why not just read the code it's telling you??

 

Please see page 5 of 5 in this link

http://www.endwrench.com/pdf/drivetrain/02Winter4EATDiagServ.pdf