FSM assistance needed
Thread Starter
Pro
Joined: Jun 2008
Posts: 610
Likes: 1
FSM assistance needed
96 base model auto
Getting p1642 "vehicle speed sensor output failure"
I used to get this occasionally. Now, after working on the car, it is constant. Comes on with just the key, don't even have to start the engine. Clear it, comes right back.
Anyway, I have the book and it is leading me on a merry chase trying to find the diagnostic for the speed sensor and related circuit. Section 8 has an entry in the index, but when you go there it is a blank page re-directing to section 6. Section 6 is the engine.
Anybody know where they hid this?
(btw, speedo and cruise both work fine)
Getting p1642 "vehicle speed sensor output failure"
I used to get this occasionally. Now, after working on the car, it is constant. Comes on with just the key, don't even have to start the engine. Clear it, comes right back.
Anyway, I have the book and it is leading me on a merry chase trying to find the diagnostic for the speed sensor and related circuit. Section 8 has an entry in the index, but when you go there it is a blank page re-directing to section 6. Section 6 is the engine.
Anybody know where they hid this?
(btw, speedo and cruise both work fine)
Burning Brakes
Joined: Feb 2009
Posts: 785
Likes: 3
From: Richmond Virginia
ECM is not seeing the cooling fans run
Uhhhh---I just looked up P1642---I'm showing it as a fault in the cooling fan circuit---one of the "checks" involves the #2 relay for the cooling fans ??
Burning Brakes
Joined: Feb 2009
Posts: 785
Likes: 3
From: Richmond Virginia
I got the code info from a online source that's been very reliable over the years ( I use them on the job and on occasion at home) I also have a older autoxray scanner I use at home, but as you say I suspect they may have screwed up in this case.
