Trans fail Safe

[pnoyako85]

IT's Your Alternator .....had the same problem ..if your battery is good then its is alternator...good luck...


http://www.xoutpost.com/bmw-sav-foru...ere-she-6.html

[romeokc10]

Originally Posted by blackx

Left to go run some errands today. got into 2nd gear. was hit with a hard shift . followed by the transfailsafe light and service engine soon. there was a autozone close so i limped it there and got the codes. p1161 p1159 and p1892 came up. any ideas? truck just hit 109k

You should've driven your other vehicle, you know these things can't be trusted...lol!

[Rockit]

Trans fail comes on for just about everything and has nothing to do with the trans most of the time.

I see you have a 01 4.4. They have a recall for a bad natural safety switch. If the car idles for 5 mins or so and you pull away it goes in transfail mod it's probably the neutral safety switch... So you idle for 5-7-10 minutes and the light comes on while stopped in park engine running it the switch...try that.

If it happens while your driving at speed after you have been driving a while could be anything from alternator-battery-ASB system and more.

Have your dealer run the vin for the recall.

MY 02 had the transfail come on and it was the neutral safety switch. I tried to get the dealer to replace it under warrantee but the production date was out by 2-3 months and they said no. I had the defective switch in my production run. I would idle for about 7 minuets and the light came on. Sometimes I would drive for a half hour and pull in the driveway and as soon as I put it in park the transfail came on.

I never had the check engine light come on.