- #1 of 24
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4 whd drive display flashes check light
by provost
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Feb 16, 2008 (9:36 am)
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The 4 wheel drive wont engage and the check light keeps flashing? what causes this?
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- #2 of 24
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Re: 4 whd drive display flashes check light [provost]
by atfdmike
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Feb 16, 2008 (10:29 am)
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Replying to: provost (Feb 16, 2008 9:36 am)
What year is your Trooper? Do you have TOD?
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- #3 of 24
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Re: 4 whd drive display flashes check light [atfdmike]
by provost
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Feb 16, 2008 (12:04 pm)
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Replying to: atfdmike (Feb 16, 2008 10:29 am)
iTs a 2000 trooper,, and it does have TOD.
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- #4 of 24
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Re: 4 whd drive display flashes check light [provost]
by atfdmike
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Feb 16, 2008 (4:28 pm)
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Replying to: provost (Feb 16, 2008 12:04 pm)
Well, I am no expert on the TOD system, but I know it only works in 4High Drive. In 4low the 4WD system locks the Tcase 50/50 front and rear. Try putting it in 4 LO and see if it goes into 4LO and actually is working, and whether the flashing stops and light indicates 4WD. This will help isolate where the problem may lie. If the light stays on and indicates 4WD is engaged, then I would look at the TOD system for the problem, or front axle actuator, if it has one. If it does not go into 4LO, then suspect Tcase problem.....not too likely though, I think. I don't know if TOD has the shift on the fly front axle, but if it does, then if the actuator is not working it will cause flashing to indicate that failure. If your front axle has a vacuum actuator on it then it is SOTF. I know that is common problem on SOTF..IF vacuum hose gets knocked off or valve sticks, then no 4WD.. Hope this helps. Good luck.
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- #5 of 24
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Re: 4 whd drive display flashes check light [atfdmike]
by paisan
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Feb 18, 2008 (9:14 am)
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Replying to: atfdmike (Feb 16, 2008 4:28 pm)
All the TOD equipped models have SOTF.
Check the 4-low and see if it engages. If it doesn't then it's likely the SOTF vaccum or the unit itself. I left mine in AWD mode for a whole winter and when I tried to put it in 2wd, it wouldn't work. Same error message. Turned out because I hadn't changed mode (2wd -> AWD/4wd) the lube dried up and the unit siezed.
-mike
Motorsports and Modifications Host
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- #6 of 24
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TOD Error
by pooper1
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Apr 16, 2008 (9:42 am)
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My TOD is "working", that is, it does come out of AWD - but the dash lights never recognize it, and eventually the error light flashes. It had the engine completely rebuilt, and sat idle for about 3 months waiting for that, but it was in 2WD when it went into the shop. Any ideas?
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- #7 of 24
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Re: TOD Error [pooper1]
by atfdmike
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Apr 16, 2008 (10:14 am)
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Replying to: pooper1 (Apr 16, 2008 9:42 am)
Sounds like it could be the switch on the front axle not responding when the axle shifts out of engaged position. Try unplugging it and see if the indicator light goes off, although I am by no means an expert on the TOD system. I am going by the fact that all the front switch does is indicate the status of the axle and you say it is disengaging properly......HTH
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- #8 of 24
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Re: TOD Error [atfdmike]
by costello1
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Apr 26, 2008 (10:58 am)
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Replying to: atfdmike (Apr 16, 2008 10:14 am)
Just took my 02 trooper to the only dealer left in my area . Had then run the diag on the TOD system. Want to replace the wheel speed sensor and replace the Vac solenoid valve . $1342.00 in Delaware . I will pass on spending that since I have a 07 Mitishi Outlander 4 wd ., not a Trooper but great crossover .
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- #9 of 24
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CHECK LIGHT ON TOD
by speed328
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Jun 27, 2008 (10:42 pm)
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Hi,
I have a 2001 trooper and lately I have had the red CHECK light flashing on the TOD panel without using the 4wd. it starts flashing about a minute after the car is running again without the 4wd selected.
any ideas?
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- #10 of 24
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Re: CHECK LIGHT ON TOD [speed328]
by btrottie
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Aug 15, 2008 (3:41 pm)
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Replying to: speed328 (Jun 27, 2008 10:42 pm)
I had the same problem on my 1999 Trooper. I had the Flashing Check light on the TOD panel AND the Check Engine light was on steady...Want to know what the fix was??? No $1000 speed sensor job...the wiring that runs along the drive shaft was corroded and exposed....I had some new wiring put in and TADA! no more flashing TOD check light and no Check Engine light!
/Blair 
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