User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 02-22-2020, 11:27 PM #1
Fishwerks's Avatar
Fishwerks Fishwerks is offline
Senior Member
 
Join Date: Jan 2012
Location: Southwest
Posts: 1,058
Real Name: Chris
Fishwerks will become famous soon enough Fishwerks will become famous soon enough
Fishwerks Fishwerks is offline
Senior Member
Fishwerks's Avatar
 
Join Date: Jan 2012
Location: Southwest
Posts: 1,058
Real Name: Chris
Fishwerks will become famous soon enough Fishwerks will become famous soon enough
2000 SR5 - A Variety of Electrical Issues

Hi All,

Preface - My 4Runner is a 2000 SR5, 3.4 V6 with auto transmission. It has a Hopkins trailer wiring kit installed.



All of the issues outlined below began simultaneously two weekends back, just now getting to troubleshooting. Truck was parked in the garage, hadn't been driven in approximately one week. I started it, pulled it out the garage, then put it in park and shut it off (no issues at this time). After about an hour of sitting outside (no rain or anything) I was going to leave the house and the following issues presented themselves when I restarted the truck and tried to leave:
- Auto transmission will not come out of park without using the override button near the shifter.
(I have checked that the STOP fuse is good, brake lights operating correctly)

- ABS light on, P0500 CEL code, cruise control inoperable, speedometer inoperable.
(these all should be related to the ABS system malfunctioning)

- Power windows inoperable from all switches, including lift gate window.
(The lift gate window works with the key fob button and using key in the tailgate)

- Defroster switch inoperable.
(light does not come on)

- Door ajar light does not come on when any door is opened
It's possible other electrical bits are not working correctly, the list above is what I have found up to now. The following pieces are working normally - power locks, power mirror adjustment, ECT button, exterior lights, interior lights, stereo/speakers, and HVAC. Truck runs and shifts normally when driven. No electrical work has been done in over a year.

About one year ago I tubbed the firewall for 35s, so angle grinder/welding debris was created near the electrical connectors in the kick panels (I wrapped them and moved them away from the immediate area to protect them from debris and heat at the time). And I tipped the truck on its side in Moab last March. I have been driving the truck about once a week since then with no electrical issues, but trying to be thorough.

I was going to start chasing each issue down separately, but it seems pretty suspect that all the issues popped up at once. Looking for advice on diagnosis and order of operations. Hoping @TheDurk , @IBallEngineer , and other electrical gurus can lend their time and knowledge.

Thanks in advance, I have a feeling this is going to get messy.
__________________
Fishwerks' Photo/Build Thread 2000 SR5 l White on White l 35s l Supercharged
--
2010 Trail Edition l Salsa Red Pearl l Stock
--
Instagram

Last edited by Fishwerks; 02-22-2020 at 11:32 PM.
Fishwerks is offline   Reply With QuoteReply With Quote
Old 02-23-2020, 03:02 AM #2
TheDurk's Avatar
TheDurk TheDurk is offline
Elite Member
 
Join Date: Nov 2006
Location: New Jersey
Posts: 7,309
TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough
TheDurk TheDurk is offline
Elite Member
TheDurk's Avatar
 
Join Date: Nov 2006
Location: New Jersey
Posts: 7,309
TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough
Do the dome lights come on with the switches on the lights themselves?

Check these fuses:

ECU-B
ECU-IG
DOME
MPX-B
__________________
'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil)
My Backyard Frame Swap
TheDurk is offline   Reply With QuoteReply With Quote
Old 02-23-2020, 11:31 AM #3
plcfcng's Avatar
plcfcng plcfcng is offline
Member
 
Join Date: Apr 2017
Location: Southern California (please don't hold it against me)
Posts: 370
Real Name: michael
plcfcng will become famous soon enough plcfcng will become famous soon enough
plcfcng plcfcng is offline
Member
plcfcng's Avatar
 
Join Date: Apr 2017
Location: Southern California (please don't hold it against me)
Posts: 370
Real Name: michael
plcfcng will become famous soon enough plcfcng will become famous soon enough
I would first start with cleaning the Batt terminals. Then make sure that all the Grounds are clean and tight. After that you could start chasing wires. Also take a good look at the Batt Cables.
plcfcng is offline   Reply With QuoteReply With Quote
Old 02-23-2020, 01:40 PM #4
Fishwerks's Avatar
Fishwerks Fishwerks is offline
Senior Member
 
Join Date: Jan 2012
Location: Southwest
Posts: 1,058
Real Name: Chris
Fishwerks will become famous soon enough Fishwerks will become famous soon enough
Fishwerks Fishwerks is offline
Senior Member
Fishwerks's Avatar
 
Join Date: Jan 2012
Location: Southwest
Posts: 1,058
Real Name: Chris
Fishwerks will become famous soon enough Fishwerks will become famous soon enough
Quote:
Originally Posted by TheDurk View Post
Do the dome lights come on with the switches on the lights themselves?

Check these fuses:

ECU-B
ECU-IG
DOME
MPX-B
Yes the dome lights come on with the switches.

Good lesson to check fuses first...ECU-B, DOME, and MPX-B all tested good. But the ECU-IG fuse was blown. Replaced ECU-IG fuse and now the transmission comes out of park, defroster button works, and all of the window switches work. Had no idea that fuse played a role in all those.

The door ajar light is still not lighting up.

Thanks for the help so far.

Quote:
Originally Posted by plcfcng View Post
I would first start with cleaning the Batt terminals. Then make sure that all the Grounds are clean and tight. After that you could start chasing wires. Also take a good look at the Batt Cables.
Thanks, checked battery connections and they are clean and tight. No visible issues on the battery cables. Made some progress with a fuse above (since I'm not smart enough to check the easy stuff first apparently).
__________________
Fishwerks' Photo/Build Thread 2000 SR5 l White on White l 35s l Supercharged
--
2010 Trail Edition l Salsa Red Pearl l Stock
--
Instagram

Last edited by Fishwerks; 02-23-2020 at 08:28 PM. Reason: Fixed rear window switch.
Fishwerks is offline   Reply With QuoteReply With Quote
Old 02-23-2020, 05:25 PM #5
gamefreakgc's Avatar
gamefreakgc gamefreakgc is offline
Elite Member
 
Join Date: Oct 2014
Location: Citrus Heights, California
Posts: 5,797
Real Name: Jerod
gamefreakgc is a glorious beacon of light gamefreakgc is a glorious beacon of light gamefreakgc is a glorious beacon of light gamefreakgc is a glorious beacon of light gamefreakgc is a glorious beacon of light gamefreakgc is a glorious beacon of light
gamefreakgc gamefreakgc is offline
Elite Member
gamefreakgc's Avatar
 
Join Date: Oct 2014
Location: Citrus Heights, California
Posts: 5,797
Real Name: Jerod
gamefreakgc is a glorious beacon of light gamefreakgc is a glorious beacon of light gamefreakgc is a glorious beacon of light gamefreakgc is a glorious beacon of light gamefreakgc is a glorious beacon of light gamefreakgc is a glorious beacon of light
Do you have rodent issues? It sounds like either an entire connector or wiring harness was cut/shorted.
__________________
'98 4Runner SR5 - 4x4 5VZ-FE Supercharged - 222k miles, JDM engine @ 221k

AEM F/IC 6 Piggyback, 2.1" pulley at 11 PSI, Go-Fast Parts
Jerod's Supercharged T[u]RD Build
gamefreakgc is offline   Reply With QuoteReply With Quote
Old 02-23-2020, 08:26 PM #6
Fishwerks's Avatar
Fishwerks Fishwerks is offline
Senior Member
 
Join Date: Jan 2012
Location: Southwest
Posts: 1,058
Real Name: Chris
Fishwerks will become famous soon enough Fishwerks will become famous soon enough
Fishwerks Fishwerks is offline
Senior Member
Fishwerks's Avatar
 
Join Date: Jan 2012
Location: Southwest
Posts: 1,058
Real Name: Chris
Fishwerks will become famous soon enough Fishwerks will become famous soon enough
Quote:
Originally Posted by gamefreakgc View Post
Do you have rodent issues? It sounds like either an entire connector or wiring harness was cut/shorted.
That was my first thought, I haven't found anything obvious yet and haven't had issues with rodents in the garage before. But still seems possible. The ECU-IG fuse was blown which fixed a few of the issues, but not the door ajar light. ABS seems like it should be separate from the other issues.

Can anyone check if the door ajar light comes in with the key in the ignition in the ON position, without starting the truck? I know it doesn't need the key in to light up normally, but I'm wondering if the bulb is toast.
__________________
Fishwerks' Photo/Build Thread 2000 SR5 l White on White l 35s l Supercharged
--
2010 Trail Edition l Salsa Red Pearl l Stock
--
Instagram

Last edited by Fishwerks; 02-25-2020 at 01:05 AM. Reason: ABS issue resolved
Fishwerks is offline   Reply With QuoteReply With Quote
Old 02-23-2020, 11:49 PM #7
TheDurk's Avatar
TheDurk TheDurk is offline
Elite Member
 
Join Date: Nov 2006
Location: New Jersey
Posts: 7,309
TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough
TheDurk TheDurk is offline
Elite Member
TheDurk's Avatar
 
Join Date: Nov 2006
Location: New Jersey
Posts: 7,309
TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough
Quote:
Originally Posted by Fishwerks View Post
Yes the dome lights come on with the switches.

Good lesson to check fuses first...ECU-B, DOME, and MPX-B all tested good. But the ECU-IG fuse was blown. Replaced ECU-IG fuse and now the transmission comes out of park, defroster button works, and all of the window switches work. Had no idea that fuse played a role in all those.

The door ajar light is still not lighting up.

Thanks for the help so far.
But do the dome lights come on when the doors are opened? That is, the dash light for door ajar is the only thing left to fix?

And kudos for TESTING fuses. My pet peeve is 'the fuses looked good'
__________________
'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil)
My Backyard Frame Swap

Last edited by TheDurk; 02-23-2020 at 11:51 PM.
TheDurk is offline   Reply With QuoteReply With Quote
Old 02-24-2020, 12:23 PM #8
Fishwerks's Avatar
Fishwerks Fishwerks is offline
Senior Member
 
Join Date: Jan 2012
Location: Southwest
Posts: 1,058
Real Name: Chris
Fishwerks will become famous soon enough Fishwerks will become famous soon enough
Fishwerks Fishwerks is offline
Senior Member
Fishwerks's Avatar
 
Join Date: Jan 2012
Location: Southwest
Posts: 1,058
Real Name: Chris
Fishwerks will become famous soon enough Fishwerks will become famous soon enough
Quote:
Originally Posted by TheDurk View Post
But do the dome lights come on when the doors are opened? That is, the dash light for door ajar is the only thing left to fix?

And kudos for TESTING fuses. My pet peeve is 'the fuses looked good'
Yes the dome lights are working normally, i.e. when set to "door" they come on when a door is opened but the light in the dash/gauge cluster does not come on. It also does not come on when the key is set to ON, so maybe the bulb went out?

And thanks, I learned the ways of testing fuses and connections a couple years back when you and @IBallEngineer helped me diagnose a fried gauge cluster (which has been replaced for the record).
__________________
Fishwerks' Photo/Build Thread 2000 SR5 l White on White l 35s l Supercharged
--
2010 Trail Edition l Salsa Red Pearl l Stock
--
Instagram
Fishwerks is offline   Reply With QuoteReply With Quote
Old 02-24-2020, 12:33 PM #9
TheDurk's Avatar
TheDurk TheDurk is offline
Elite Member
 
Join Date: Nov 2006
Location: New Jersey
Posts: 7,309
TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough
TheDurk TheDurk is offline
Elite Member
TheDurk's Avatar
 
Join Date: Nov 2006
Location: New Jersey
Posts: 7,309
TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough TheDurk is a jewel in the rough
Quote:
Originally Posted by Fishwerks View Post
Yes the dome lights are working normally, i.e. when set to "door" they come on when a door is opened but the light in the dash/gauge cluster does not come on. It also does not come on when the key is set to ON, so maybe the bulb went out?

And thanks, I learned the ways of testing fuses and connections a couple years back when you and @IBallEngineer helped me diagnose a fried gauge cluster (which has been replaced for the record).
In that case, it is probably the bulb. Maybe it was burnt for a while but you never noticed until all the rest happened. Otherwise, it would have to be an on-board fault in the ECU-B and thus not worth fixing unless you have one lying around.

Here is all the stuff on the ECU-IG.


Quote:
ABS
Auto Antenna
Cruise Control (3RZ−FE)
Cruise Control (5VZ−FE)
Door Lock Control
Moon Roof
Multiplex Communication System
Power Window
Power Window (Rear), Rear Wiper and Washer
Rear Window Defogger and Mirror Heater
Shift Lock
Theft Deterrent
Wireless Door Lock Control
__________________
'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil)
My Backyard Frame Swap
TheDurk is offline   Reply With QuoteReply With Quote
Old 02-25-2020, 01:14 AM #10
Fishwerks's Avatar
Fishwerks Fishwerks is offline
Senior Member
 
Join Date: Jan 2012
Location: Southwest
Posts: 1,058
Real Name: Chris
Fishwerks will become famous soon enough Fishwerks will become famous soon enough
Fishwerks Fishwerks is offline
Senior Member
Fishwerks's Avatar
 
Join Date: Jan 2012
Location: Southwest
Posts: 1,058
Real Name: Chris
Fishwerks will become famous soon enough Fishwerks will become famous soon enough
Quote:
Originally Posted by TheDurk View Post
In that case, it is probably the bulb. Maybe it was burnt for a while but you never noticed until all the rest happened. Otherwise, it would have to be an on-board fault in the ECU-B and thus not worth fixing unless you have one lying around.

Here is all the stuff on the ECU-IG.
If I get motivated at some point I'll look into swapping the bulb (or just ignore it so I don't go down some rabbit hole), but for now all issues are resolved thanks to one fuse change for the ECU-IG. The ABS light turned off once I actually started and ran the truck tonight.

Thanks for the list of things controlled by the ECU-IG, like I said earlier I never knew all of those lived somewhere common and could be affected by one fuse. I suppose with all of the issues popping up so suddenly a fuse would have been an obvious place to check (in hindsight)...I was having nightmares of chasing short circuits when it happened.

I hope you never leave the forum so you can continue helping the electrically-challenged such as myself. Where do I send beer money?


(now this thread can sink into the forum depths before people see that I can't check fuses and I lose all internet credibility)
__________________
Fishwerks' Photo/Build Thread 2000 SR5 l White on White l 35s l Supercharged
--
2010 Trail Edition l Salsa Red Pearl l Stock
--
Instagram

Last edited by Fishwerks; 02-25-2020 at 01:16 AM.
Fishwerks is offline   Reply With QuoteReply With Quote
Old 02-25-2020, 01:30 AM #11
Outrider Outrider is offline
Member
 
Join Date: Dec 2007
Location: Georgia
Posts: 282
Outrider is on a distinguished road
Outrider Outrider is offline
Member
 
Join Date: Dec 2007
Location: Georgia
Posts: 282
Outrider is on a distinguished road
Glad you got things fixed.

Gawd, I despise electrical gremlins. They drive me up the wall.

Fortunately, my T4R has had very few gremlins - the dash clock and the fuel gauge.

However, once when replacing the dome light bulb, I accidentally made a spark, which blew out the infamous "15 amp fuse". Some idiot engineer put the trip odometers on the same circuit (perhaps they are tied to the ECM?), and I had to write down on paper when my next oil change is due, because my trip odometer B was reset by that spark.

Worst car I ever had for electrical gremlins - a '77 Fiat 124 Spyder. Going down the road at night, every single electric component would go out arbitrarily (lights included), but the engine kept running. I eventually found a connector in the wiring harness, lying under the driver side floorboard carpet. It got kicked by my foot frequently, causing a break in one of the main circuit wires. Incredibly stupid to put a connector there, but Italian car engineers were known for doing really stupid things then (maybe they still are?).
Fix It Again Tony.
Fix It All the Time.
__________________
'99 SR5 2WD / Jolene / 200k on 1/7/20
Outrider is offline   Reply With QuoteReply With Quote
Old 02-25-2020, 01:57 PM #12
Riceye Riceye is offline
Member
 
Join Date: Mar 2013
Location: Wisconsin
Posts: 397
Riceye will become famous soon enough
Riceye Riceye is offline
Member
 
Join Date: Mar 2013
Location: Wisconsin
Posts: 397
Riceye will become famous soon enough
Quote:
Originally Posted by Outrider View Post
Worst car I ever had for electrical gremlins - a '77 Fiat 124 Spyder. Going down the road at night, every single electric component would go out arbitrarily (lights included), but the engine kept running. I eventually found a connector in the wiring harness, lying under the driver side floorboard carpet. It got kicked by my foot frequently, causing a break in one of the main circuit wires. Incredibly stupid to put a connector there, but Italian car engineers were known for doing really stupid things then (maybe they still are?).
I had a '62 MG Midget. I swear the thing only had, like, three wires and yet it always had electrical issues.

Lucas electrical theory
__________________
_________
2000 SR5 five speed. Everything works, even the antenna. No special mods; It's my canoe, kayak and dog hauler/winter beater.

I find that things usually go well right up until the moment they don't.
Riceye is offline   Reply With QuoteReply With Quote
Reply

Tags
electrical , inoperable , issues , time , truck

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
Need help with electrical issues Yotanation 3rd gen T4Rs 35 04-14-2019 01:09 PM
electrical issues loafer 5th gen T4Rs 9 06-20-2016 12:28 AM
Electrical short?? Random electrical issues? Fanman47 4th Gen T4Rs 5 06-09-2014 03:12 PM
Electrical issues in a 99 mryuk81 3rd gen T4Rs 3 11-29-2006 10:30 AM
'00 SR5 electrical issues... ThaDeej Problems & Warranty Issues 0 12-20-2005 05:29 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 10:41 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2020 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