Central Diff Lock LC100 Stuck On!

Submitted: Thursday, Sep 29, 2011 at 13:52
ThreadID: 89290 Views:2697 Replies:6 FollowUps:0
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I am hoping someone may be able to help with a problem I have, my LC100
automatic has the central diff lock stuck on, the car is in 4WD and I have tried driving in reverse and braking, driving forward in a straight line etc. The mechanic I have taken it to has no idea either and we are 1,000 ks from home!
Any advice will be greatly appreciated.
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Reply By: Member - Tour Boy ( Bundy QLD) - Thursday, Sep 29, 2011 at 14:11

Thursday, Sep 29, 2011 at 14:11
Can I assume that you locked it for a reason or has it malfunctioned in some way?
You could try to roll forward on a loose surface in nutural activating and deactivating the switch (allow about 3 secs to let the electric motor lock and unlock the CD) but I would say that jacking up the vehicle and letting the "wind up" dissapear as this is usually why it will stay on.
Otherwise crawl underneath and disconnect the plug on the transfer case.
Alternatively do the "7 pin Modification" as detailed on LCool so you can use low range for towing and manouvering without it automatically locking.
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AnswerID: 466324

Reply By: Member - Captain (WA) - Thursday, Sep 29, 2011 at 14:23

Thursday, Sep 29, 2011 at 14:23
Have you checked the fuses or the plug to the low range motor? Its a motor driven change, can you hear the motor trying to change from low to high?


AnswerID: 466325

Reply By: gbc - Thursday, Sep 29, 2011 at 15:02

Thursday, Sep 29, 2011 at 15:02
Did you put it in 4wd and can't get it back? Jack up a front wheel.
Did it put itself into 4wd? Electrical issue - they 'fail' to CDL locked setup in the absence of power - check your switch connection in the dash(model dependent), check the activating solenoid and make sure they're o.k.
AnswerID: 466328

Reply By: willsie - Thursday, Sep 29, 2011 at 15:04

Thursday, Sep 29, 2011 at 15:04
Thank you both for the idea's I will check with the mechanic, I know he did check fuses.
AnswerID: 466329

Reply By: CraigB - Thursday, Sep 29, 2011 at 19:03

Thursday, Sep 29, 2011 at 19:03
Try disconnecting the battery for 5 mins. CPU will reset upon reconnection. No guarantees but can't hurt.
AnswerID: 466341

Reply By: willsie - Monday, Oct 03, 2011 at 15:34

Monday, Oct 03, 2011 at 15:34
Thanks Everyone

We left with the mechanic and when they went to work on it the next morning it has righted itself.


AnswerID: 466669

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