User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 02-17-2020, 11:49 PM #1
ShannanC's Avatar
ShannanC ShannanC is offline
Member
 
Join Date: Nov 2009
Location: Clear Lake (SE Houston), TX
Age: 54
Posts: 213
Real Name: Shannan
ShannanC is on a distinguished road
ShannanC ShannanC is offline
Member
ShannanC's Avatar
 
Join Date: Nov 2009
Location: Clear Lake (SE Houston), TX
Age: 54
Posts: 213
Real Name: Shannan
ShannanC is on a distinguished road
Unhappy P1780 issue with a “special” twist

I have the P1780 Neutral safety switch issue, but with a “special” twist. The check engine light came on the other day and my HVAC controls decided to change from Fahrenheit to Celsius! I had one hell of a vibration from a universal joint that was about to crap the bed and I believe that the vibration might have added to the issue. I had overlooked the universal because my upper control arms were failing and they had in turn caused my tie rod ends to prematurely wear which caused the front end to vibrate like crazy. All of this happened as I am working Nights and a lot of 12 hour shifts so I’m not exactly on my game at the moment. But..wait..it gets better! Now my truck won’t shift but once. I can move the shifter into any gear and the HVAC display stays in Celsius except for 1st gear where it changes back to Fahrenheit.

I bought another neutral safety switch, but after reading up on the issue I don’t believe that this will solve anything because the truck starts and runs fine. I changed the universal so the vibration is gone except for the front end wiggle which I will repair after I get it to shift again.

I also noticed yesterday as I played with the shifter that the instrument cluster is starting to glitch out with the gear indicator on the dash. I was contemplating changing the printed circuit board.

I apologize for the long ramble.

If anyone has any comments or suggestions I would be very grateful!
__________________
99 4runner Limited 2wd - K & N air filter, deck plate mod, ISR mod, 2" Fat Pat's body lift, Bilstein Tundra 5100s and Toytec 620lbs coils in front, LX450 coils and Bilstein Tundra 5100s in rear, extended end-links and panhard drop bracket, Maxxis MT-762 Bighorn 255/85/R16, JDM engine swap, sport hood, ARB front bumper, 199mm Tundra brake upgrade
ShannanC is offline   Reply With QuoteReply With Quote
Old 02-18-2020, 08:59 PM #2
ShannanC's Avatar
ShannanC ShannanC is offline
Member
 
Join Date: Nov 2009
Location: Clear Lake (SE Houston), TX
Age: 54
Posts: 213
Real Name: Shannan
ShannanC is on a distinguished road
ShannanC ShannanC is offline
Member
ShannanC's Avatar
 
Join Date: Nov 2009
Location: Clear Lake (SE Houston), TX
Age: 54
Posts: 213
Real Name: Shannan
ShannanC is on a distinguished road
Bump

Anyone?
__________________
99 4runner Limited 2wd - K & N air filter, deck plate mod, ISR mod, 2" Fat Pat's body lift, Bilstein Tundra 5100s and Toytec 620lbs coils in front, LX450 coils and Bilstein Tundra 5100s in rear, extended end-links and panhard drop bracket, Maxxis MT-762 Bighorn 255/85/R16, JDM engine swap, sport hood, ARB front bumper, 199mm Tundra brake upgrade
ShannanC is offline   Reply With QuoteReply With Quote
Old 02-18-2020, 09:03 PM #3
heat's Avatar
heat heat is offline
Member
 
Join Date: Jun 2013
Location: Virginia
Posts: 369
heat will become famous soon enough heat will become famous soon enough
heat heat is offline
Member
heat's Avatar
 
Join Date: Jun 2013
Location: Virginia
Posts: 369
heat will become famous soon enough heat will become famous soon enough
Intermittent grounds can cause a whole range of seemingly unrelated
problems.
__________________
'02 Limited 4x4 AT - Stock ~181k miles
Thundercloud aka metallic dirt
heat is offline   Reply With QuoteReply With Quote
Old 02-18-2020, 09:10 PM #4
ShannanC's Avatar
ShannanC ShannanC is offline
Member
 
Join Date: Nov 2009
Location: Clear Lake (SE Houston), TX
Age: 54
Posts: 213
Real Name: Shannan
ShannanC is on a distinguished road
ShannanC ShannanC is offline
Member
ShannanC's Avatar
 
Join Date: Nov 2009
Location: Clear Lake (SE Houston), TX
Age: 54
Posts: 213
Real Name: Shannan
ShannanC is on a distinguished road
Thank you for the input. I will start checking.

Sent from my SM-N950U using Tapatalk
__________________
99 4runner Limited 2wd - K & N air filter, deck plate mod, ISR mod, 2" Fat Pat's body lift, Bilstein Tundra 5100s and Toytec 620lbs coils in front, LX450 coils and Bilstein Tundra 5100s in rear, extended end-links and panhard drop bracket, Maxxis MT-762 Bighorn 255/85/R16, JDM engine swap, sport hood, ARB front bumper, 199mm Tundra brake upgrade
ShannanC is offline   Reply With QuoteReply With Quote
Old 02-18-2020, 10:02 PM #5
SusVir SusVir is offline
Junior Member
 
Join Date: Jun 2019
Location: Conroe, TX
Posts: 2
SusVir is on a distinguished road
SusVir SusVir is offline
Junior Member
 
Join Date: Jun 2019
Location: Conroe, TX
Posts: 2
SusVir is on a distinguished road
I had the exact same issue on my 4Runner ('99 Limited A/T). After a lot (A LOT) of troubleshooting and reading online, I narrowed it down to the Instrument Panel Circuit Board (Part 83861-3D260). It's the blue "sheet" that sits behind the gauges (2:40 in the video). Turns out after twenty years and 300k miles, some contacts wore loose or something, I don't know. Anyway, I replaced that and voila, it solved all those problems! Here's a video from Timmy the Toolman that should help you remove the guages. And another VERY helpful link from smallfry from the T4R forum. Good luck!

YouTube

Transmission Issue????



Sent from my Pixel 3 XL using Tapatalk
SusVir is offline   Reply With QuoteReply With Quote
Old 02-23-2020, 10:31 AM #6
ShannanC's Avatar
ShannanC ShannanC is offline
Member
 
Join Date: Nov 2009
Location: Clear Lake (SE Houston), TX
Age: 54
Posts: 213
Real Name: Shannan
ShannanC is on a distinguished road
ShannanC ShannanC is offline
Member
ShannanC's Avatar
 
Join Date: Nov 2009
Location: Clear Lake (SE Houston), TX
Age: 54
Posts: 213
Real Name: Shannan
ShannanC is on a distinguished road
@SusVir
I changed out the circuit board last night and it fixed the problem. Thank you very much.
__________________
99 4runner Limited 2wd - K & N air filter, deck plate mod, ISR mod, 2" Fat Pat's body lift, Bilstein Tundra 5100s and Toytec 620lbs coils in front, LX450 coils and Bilstein Tundra 5100s in rear, extended end-links and panhard drop bracket, Maxxis MT-762 Bighorn 255/85/R16, JDM engine swap, sport hood, ARB front bumper, 199mm Tundra brake upgrade
ShannanC is offline   Reply With QuoteReply With Quote
Reply

Tags
caused , gear , issue , universal , vibration

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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 On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
p1780 cel park neutral switch error with erratic dash indicator lights Mountain Fun 3rd gen T4Rs 3 11-14-2023 02:50 PM
P1780 woes OBTDean 3rd gen T4Rs 0 01-23-2017 03:33 AM
Starting issue with a BIG twist adder70 4th Gen T4Rs 1 11-01-2016 02:39 AM
Starting issue with a BIG twist adder70 3rd gen T4Rs 1 10-31-2016 11:55 PM
P1780 Check engine nissanh New Members 6 10-05-2016 04:23 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 04:21 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020