1990 Toyota 4Runner trouble code 51

1990 TOYOTA 4RUNNER
1,100 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
WHITEWOLFTRIBE
  • MEMBER
  • 1 POST
Trouble code 51 came up in my wifes 4runner i just don't know where to start trouble shooting with a code that broad any help as to a process of elimination would be greatly appreciated. Explain reasoning as to why? Thanks !
Oct 13, 2008 at 4:30 PM
Advertisement
Avatar
RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
DTC 51 Switch signal -I will test the throttle position sensor 1st and then check the AC switch circuit/signal as indicated in the repair manual-
Oct 14, 2008 at 4:43 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle