09-19-2019, 08:19 AM
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#1
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Junior Member
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Join Date: Sep 2019
Location: Las Vegas, NV
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Junior Member
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4WD Indicator Light Came On
Hi,
2000 Limited. About a month ago I was driving @ 40-50 MPH on a paved road when my 4WD Indicator Light came on. I pulled over, shut the engine off. Restarted & the light was gone. I was not in 4WD. A month later, same scenario.4WD works fine. Any idea what could be causing this?
Thanks
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09-19-2019, 08:41 AM
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#2
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Member
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Join Date: May 2015
Location: Massachusetts
Posts: 648
Real Name: Keith
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Member
Join Date: May 2015
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Posts: 648
Real Name: Keith
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Could be transfer switch or its wiring. Here's a diagram to show circuit so you can trace it. You can get to switches easily.
__________________
*1999 3.4L, 4wd/5spd, swapped motor and trans, heavy use DD, seasonal rust proofing using WD-40 only
*2000 3.4L, 4wd/5spd, parts rig, picking the carcass
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09-19-2019, 09:02 AM
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#3
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Junior Member
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Join Date: Sep 2019
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Junior Member
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Thanks. I did have the transfer switch p/n 84222-12010 replaced a while ago. Is this the switch?
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09-19-2019, 02:00 PM
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#4
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Elite Member
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That's the diagram for the j-shift (SR5/base) 4WD system. The Limited multi-mode case is more complicated (has a computer, etc.). It is conceivable that the computer is going bad, though I haven't heard that happening before.
-Charlie
__________________
'99 4Runner SR5 Auto - 4WD swapped
'89 Camry Alltrac LE 3S-GTE 5spd
'17 Chevy Volt Premier
'16 Honda Odyssey Elite
Previous: '88 Camry Alltrac LE 3S-GE BEAMS, 90 Camry 3S-GTE, 90 Camry DX, '03 WRX wagon, '08 Outback XT
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09-19-2019, 03:12 PM
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#5
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What's strange is I haven't been able to find this problem searching the internet. Plenty of blinking lights problems though.
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09-19-2019, 03:23 PM
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#6
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Senior Member
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Join Date: Feb 2019
Location: Hot Springs, AR
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Senior Member
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Quote:
Originally Posted by AR314
Hi,
2000 Limited. About a month ago I was driving @ 40-50 MPH on a paved road when my 4WD Indicator Light came on. I pulled over, shut the engine off. Restarted & the light was gone. I was not in 4WD. A month later, same scenario.4WD works fine. Any idea what could be causing this?
Thanks
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When you say the 4wd indicator light came on do you mean the 4 tires and center light came on? Was it solid on, flashing, flash once?
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09-19-2019, 08:19 PM
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#7
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Junior Member
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Join Date: Sep 2019
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Junior Member
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4 tires w/ center light. Solid.
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09-19-2019, 09:48 PM
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#8
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Junior Member
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Quote:
Originally Posted by AR314
4 tires w/ center light. Solid.
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Do you know if 4WD was actually engaged or just the light? Did you feel any binding or hear it engage or anything?
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09-19-2019, 09:55 PM
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#9
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Junior Member
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Just the light. Not engaged in 4WD. I don't think it's possible to engage 4WD Lo/Hi w/o moving the 4WD shift lever.
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09-20-2019, 12:12 AM
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#10
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Junior Member
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Quote:
Originally Posted by AR314
Just the light. Not engaged in 4WD. I don't think it's possible to engage 4WD Lo/Hi w/o moving the 4WD shift lever.
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It'll depend on the system. I had some really weird issues that included at some points the truck shifting into H4L (center diff locked) with just the Multimode push button engaged.
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09-20-2019, 08:07 AM
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#11
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Member
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Join Date: May 2015
Location: Massachusetts
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Real Name: Keith
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Member
Join Date: May 2015
Location: Massachusetts
Posts: 648
Real Name: Keith
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Quote:
Originally Posted by phattyduck
That's the diagram for the j-shift (SR5/base) 4WD system. The Limited multi-mode case is more complicated (has a computer, etc.). It is conceivable that the computer is going bad, though I haven't heard that happening before.
-Charlie
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Whoops, my bad. Yeah I only have the J shift diagram in my files.
__________________
*1999 3.4L, 4wd/5spd, swapped motor and trans, heavy use DD, seasonal rust proofing using WD-40 only
*2000 3.4L, 4wd/5spd, parts rig, picking the carcass
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09-20-2019, 10:54 AM
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#12
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Senior Member
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Join Date: Feb 2019
Location: Hot Springs, AR
Posts: 4,410
Real Name: Patrick
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Senior Member
Join Date: Feb 2019
Location: Hot Springs, AR
Posts: 4,410
Real Name: Patrick
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Quote:
Originally Posted by AR314
Just the light. Not engaged in 4WD. I don't think it's possible to engage 4WD Lo/Hi w/o moving the 4WD shift lever.
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I had something similar happen to me several months ago. I took all the transfer case switches out and cleaned them with electronics cleaner then put them back in. I managed to do this with the transfer case in the vehicle by removing the crossmember and sagging the transfer case down in order to reach the sensors on the passenger side.
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09-20-2019, 01:35 PM
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#13
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Junior Member
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Join Date: Sep 2019
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What exactly happened? What model/year is your 4Runner?
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09-20-2019, 02:18 PM
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#14
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Elite Member
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Join Date: Mar 2016
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Quote:
Originally Posted by AR314
Just the light. Not engaged in 4WD. I don't think it's possible to engage 4WD Lo/Hi w/o moving the 4WD shift lever.
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The computer has full control over the 2WD/4WD shift and the center diff lock, even if the shift lever hasn't moved, even on the "j-shift" multimode cases. Moving the lever from 2Hi/4Hu to 4HiL just actuates a switch inside the transmission.
Only the High to Low range shifter movement is mechanical on the multimode case.
-Charlie
__________________
'99 4Runner SR5 Auto - 4WD swapped
'89 Camry Alltrac LE 3S-GTE 5spd
'17 Chevy Volt Premier
'16 Honda Odyssey Elite
Previous: '88 Camry Alltrac LE 3S-GE BEAMS, 90 Camry 3S-GTE, 90 Camry DX, '03 WRX wagon, '08 Outback XT
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09-20-2019, 02:57 PM
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#15
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So it's possible to go from 2H to 4H w/o moving the shift lever?
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