check engine light


Old 07-05-08, 03:42 PM
Thread Starter
Join Date: Jun 2008
Location: USA
Posts: 39
check engine light

I have a 2001 Olds Aurora, 4.0
This is my wifes car and last week it started throwing a p1860 code. ( TCC PWM Solenoid Electrical Fault ) I cleared it twice just to make sure it wasn't a fluke or something. The last time I checked it, It had two codes. The P1860 and
PO741. This is a generic code. ( Torque converter clutch- circuit performance or stuck off.) I haven't been able to find a manual for this vehicle so can anyone tell me. 1) Is this solenoid external of the tranny or internal. And 2) Could some one provide a flow chart for diagnostics. Any help is appreciated
Sponsored Links
Old 07-05-08, 04:48 PM
HotxxxxxxxOKC's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Jul 2006
Location: USA
Posts: 8,044
I'm pretty sure the solenoid is internal. You are not going to find anyone on here with a flow chart. You need to try and get your hands on the ESM. I'm thinking the tranny needs to be dropped for this.
Old 07-05-08, 05:04 PM
Unclediezel's Avatar
Join Date: Dec 2006
Location: Northeastern PA.
Posts: 2,230
The 741 is probably a remnant of 1860, so I wouldnt go to nuts over it.

The solenoid is most definitely internal. With a bunch of patience, and even more luck, you could concievably "FISH" out the side cover, but without getting the vehicle overhead on a lift, Its a tall order, and likely not a DIY compatible task.
Old 07-06-08, 06:47 PM
Thread Starter
Join Date: Jun 2008
Location: USA
Posts: 39
Thanks for the reply.
I was reading on the web that a trans fluid and filter change sometimes straitens it up. I'll try next weekend and find out.
Thanks again.

Thread Tools
Search this Thread
Display Modes
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -7. The time now is 10:14 AM.