P1860 CODE

  • Tiny
  • Hellohiwelcome
  • 1999 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 238,700 MILES

I have a P1860 code and my vehicle stops and stalls when I shift it to Drive, 3, 2, or 1. It runs and idle fine on park, neutral, or reverse and drives when it's on reverse, but when shifted to Drive, 3, 2, and/or 1 it dies. What is the problem and how can I fix it? How much would it cost if I took to a mechanic? Thank you!

Do you
have the same problem?
Yes
No
Wednesday, May 30th, 2012 AT 7:45 AM

5 Replies

  • Tiny
  • Rasmataz
  • MEMBER

DTC P1860 TCC PWM Solenoid Circuit-Go to this link for more information: http://www.ls2.com/boggs/a4/DTC%20P1860%203.8.htm

Was this
answer
helpful?
Yes
No
Wednesday, May 30th, 2012 AT 8:53 AM
  • Tiny
  • Hellohiwelcome
  • MEMBER

Do you know how much it will cost if I take it to a mechanic?

Was this
answer
helpful?
Yes
No
Wednesday, May 30th, 2012 AT 3:19 PM
  • Tiny
  • Rasmataz
  • MEMBER

It varies with location

Was this
answer
helpful?
Yes
No
Wednesday, May 30th, 2012 AT 10:36 PM
  • Tiny
  • Hellohiwelcome
  • MEMBER

Since my vehicle shuts off and stalls and cannot drive in the folling gears; Drive, 3, 2, and 1, do you think I need a new transmission? Is my transmission bad or is that because the P1860 code is on? Is the torque converter clutch pulse width modulation (TCC PWM) solenoid valve, the problem, not letting it to drive in those gears? Please, let me knoww! Thank You!

Was this
answer
helpful?
Yes
No
Wednesday, May 30th, 2012 AT 11:58 PM
  • Tiny
  • ASEMaster6371
  • EXPERT
  • 25,554 POSTS

Most likely, the trans will have to come out. The only way it wont is if a trans shop finds a wiring issue.

As far as price, you will be spending money, about 100-150 just for the diag and then the repair on top. Trans work is never cheap.

Roy

Was this
answer
helpful?
Yes
No
Thursday, May 31st, 2012 AT 12:29 AM

Please login or register to post a reply.

Other P1860 Questions