Question about 1994 Toyota Land Cruiser

3 Answers

When i switch on in the switch board the diff lock light indecation light is constantley on what can i do for it ?

What can i do ? when i was starting my jeep and switch on my jeep switch in result i find in switch board the diff lock indecation light is constantley on .after the jeep start still the light is on and one thing more the diff lock button is off and also the well of my jeep is also free .

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3 Answers

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  • Toyota Master
  • 950 Answers

Please do the following:
1. INSPECT SWITCH POSITION
(a) Start the engine, and shift the transfer shift lever to the "H"
position.
(b) Check that the center diff. indicator light comes on when
the the switch is in "ON" position. Check that the light goes
off when the switch is in "OFF" position.

2. INSPECT SHIFT LEVER POSITION
(a) Start the engine, and turn the center diff. lock switch to
OFF.
(b) Check that the center diff. indicator light comes on when
the transfer shift lever is shifted to the "L" position. Check
that the light goes off when the lever is shifted to the "N"
or "H" position.

3. INSPECT CENTER DIFF. LOCK CONTROL RELAY
4. INSPECT ACTUATOR OPERATION
5. INSPECT CENTER DIFF. LOCK SWITCH CONTINUITY
6. INSPECT TRANSFER INDICATOR SWITCH CONTINUITY
If problem persists, consult qualified service personnel.
Hope that works. Thank you for visiting Fixya.

Posted on Nov 26, 2014

I think your saying whether you turn on or off the diff
lock,that the dash light stays on

So now winter is here & you have not used that feature
all summer & now have a system failure to work on

Depending on where you live in the world

A dealer may be your best bet

Like all vehicle issues it has to be scanned

1994 should be OBD1 the older system or EOBD
& we don't have many of those model Toyota in North America

Can not guess for you,only tell you that the diff feature has
failed, most likely electronically

Maybe age,moisture,corrosion in the wire connectors or a
failed module

Posted on Nov 26, 2014

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    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Mayb your diff lock switch was jam even there r free but it still giving signal to meter panel

Posted on Nov 26, 2014

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I have Landrover Discovery TD5 and the ABS and TC light are on. Periodically the Diff lock light shows. It has been plugged into diagnostics at local garage, but NO FAULT WITH ABS PICK UPS!! Advice...


Sounds like a faulty Diff Lock switch to me.
Most of the D2 models till late 03 model year use a version of firmware on the SLABS ECU that when diff-lock is detected puts the ABS and Traction Control systems into a lower response mode. Late model vehicles came with factory fit diff-lock linkages as a option, and the firmware was revised to allow this to operate in conjunction with the traction control.
Therefore ABS and TC illuminating (but with no HDC) means your TC/ABS is in the lower performing mode, and your diff-lock may be in, but more likely the £12 switch has broken, and needs replacing. It's a bugger of a job, and can be done from underneath the vehicle (did mine this way) the switch is p/no PRC2911, and just unscrews. It's located just behind the diff-lock stud above where the front prop fits.
Your options are thus:
1) Remove the front prop. Work blind and try and change it by feel alone. Helps if you can clean the area off before too, don't want any rubbish falling in the box! Unplug & Undo the switch, IIRC it's a 12mm head, and a stubby spanner is the tool for the job. Remove, swap the lower nut from the old switch to the new one (important for the length) and put back in. Don't do up too tight, or it may shear off (as my friend did 2 days after I did mine! He kept tightening it...) Pop the connections on and the front prop and the fault should go away. You could also just disconnect the switch if you want. IIRC open circuit is no-diff lock anyway, but if that's not correct then make up a link with some spade connectors and link it out then.
2) Remove the centre console, drill the rivets and attack from above. Same tools needed, just you can see what you're doing.
I favoured Option 1. YMMV!

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2 Answers

I have 2003 land rover discovery and the abs light just cam on. also a ct light came on... whats the problem? plz help


Ok, you either have an expensive problem, or a very cheap one. And it all depends upon the number of lights on the dash.
If you have ABS and TC showing, then you may just have a diff-lock switch fault (and an intermittent H shaped amber light also which is the diff-lock indicator). This is a software issue with the SLABS ECU and is showing that due to diff-lock the ABS and TC are in a lower response setting. Later trucks don't have this problem (03 model year onwards) as the software was updated. The diff lock switch is about £12, and it's a bugger of a job. It can be done from underneath the vehicle (did mine this way) or from the cabin, and the switch is p/no PRC2911, and just unscrews. It's located just behind the diff-lock stud above where the front prop fits.
Your options are thus:
1) Remove the front prop. Work blind and try and change it by feel alone. Helps if you can clean the area off before too, don't want any rubbish falling in the box! Unplug & Undo the switch, IIRC it's a 12mm head, and a stubby spanner is the tool for the job. Remove, swap the lower nut from the old switch to the new one (important for the length) and put back in. Don't do up too tight, or it may shear off (as my friend did 2 days after I did mine! He kept tightening it...) Pop the connections on and the front prop and the fault should go away. You could also just disconnect the switch if you want. IIRC open circuit is no-diff lock anyway, but if that's not correct then make up a link with some spade connectors and link it out then.
2) Remove the centre console, drill the rivets and attack from above. Same tools needed, just you can see what you're doing.
I favoured Option 1. YMMV!

If however you have ABS, TC and Hill Descent (little picture of a truck going downhill) then you sadly have an ABS issue which suggests either Wheel Bearing, ABS Sensor Fault, or Shuttle valve. Best to get it to a dealer and on the computer for them to diagnose what exactly is wrong.

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1 Answer

Landrover td5 abs light and traction control light illuminating periodically it seems to have lost power and is making a whirring noise


Sounds like a faulty Diff Lock switch to me.
Most of the D2 models till late 03 model year use a version of firmware on the SLABS ECU that when diff-lock is detected puts the ABS and Traction Control systems into a lower response mode. Late model vehicles came with factory fit diff-lock linkages as a option, and the firmware was revised to allow this to operate in conjunction with the traction control.
Therefore ABS and TC illuminating (but with no HDC) means your TC/ABS is in the lower performing mode, and your diff-lock may be in, but more likely the £12 switch has broken, and needs replacing. It's a bugger of a job, and can be done from underneath the vehicle (did mine this way) the switch is p/no PRC2911, and just unscrews. It's located just behind the diff-lock stud above where the front prop fits.
Your options are thus:
1) Remove the front prop. Work blind and try and change it by feel alone. Helps if you can clean the area off before too, don't want any rubbish falling in the box! Unplug & Undo the switch, IIRC it's a 12mm head, and a stubby spanner is the tool for the job. Remove, swap the lower nut from the old switch to the new one (important for the length) and put back in. Don't do up too tight, or it may shear off (as my friend did 2 days after I did mine! He kept tightening it...) Pop the connections on and the front prop and the fault should go away. You could also just disconnect the switch if you want. IIRC open circuit is no-diff lock anyway, but if that's not correct then make up a link with some spade connectors and link it out then.
2) Remove the centre console, drill the rivets and attack from above. Same tools needed, just you can see what you're doing.
I favoured Option 1. YMMV!

Your whirring noise and loss of power may indicate the diff-lock is engaging occasionally and may indicate damage to the transfer box.

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Dear Customer,

do all this for solving your's

1
open your bonet & check your indicators connection i sure that there is some thing wrong or disorder connected indicators,

2
check your diff lock is working properly or not,

3
check your power supply for indication sysytem with helping your lights up & down

THNX

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