- #25 of 45
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Re: 2001 TOD auto flashes but does not engage [wesbellmore]
by hiprollc
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Oct 28, 2008 (3:24 am)
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Replying to: wesbellmore (Oct 27, 2008 4:05 pm)
I believe 98 and earlier were standard 4x4 (push button with full engage) with TOD becoming the standard in '99. There may have been a few in '99's without TOD. I have owned 98, 99, and 2000 but only my 98 was NOT TOD. If there is no TOD, I believe there is no need to have the speed sensors since the full amount of torque is being applied at all times but I am not 100% sure because my 98 never gave a moments trouble (was totaled in a rollover in 99 with less than 30,000 miles). The TOD indicator is visible on the left-side of the insrument cluster and displays a progressive indication of torque application, using 3 bars. At low torque transfer to the front wheels, only the first bar is illuminated; more torque transfer results in additional bars being illuminated. If you do not have these, you do not have TOD.
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- #26 of 45
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Re: 2001 TOD auto flashes but does not engage [hiprollc]
by wesbellmore
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Nov 08, 2008 (6:49 pm)
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Replying to: hiprollc (Oct 28, 2008 3:24 am)
Thanks 'hiprollc'... OK, good news for me... my '01 Trooper does NOT seem to have TOD by your description... I have NO progressive bars on the dash, just that little 4x4 icon that lights up when 4x4 is fully engaged or, in my case, mockingly flashes at me when I press the dash switch and says "ha ha, I'm not going into four wheel drive for YOU, buddy!"
At idle I can hear a 'ca-clunk' when I press the dash switch for 4x4...the icon blinks but it does NOT engage. If I engage the 4x4 switch in the morning after the vehicle has been sitting all night, the 4x4 MIGHT engage and operate normally. Now and then I can get it to engage when I press the 4x4 switch with the engine OFF and then starting it. When the front axle DOES decide to engage, it runs fine...no strange noises, no clunks, so I feel pretty sure it's ENGAGEMENT system is not working right...
ANY THOUGHTS???
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- #27 of 45
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Re: 2001 TOD auto flashes but does not engage [hiprollc]
by brentb1
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Nov 18, 2008 (3:31 pm)
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Replying to: hiprollc (Sep 01, 2008 8:09 am)
i have a 1999 trooper.can anyone tell me what pin connector to short so i can read my tod codes.after reading is there a way to clear the codes?thanks
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- #28 of 45
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Re: 2001 TOD auto flashes but does not engage [hiprollc]
by brentb1
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Nov 19, 2008 (4:07 pm)
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Replying to: hiprollc (Sep 01, 2008 8:09 am)
after reading all these forums i shorted the #8 connector on my 1999 trooper and got six codes.12,14,24,28,31,32.i them tried to clear them as stated here.every time i pushed the brake pedal the front indicators lighted as stated the rears never did.afterwards the check light blinked all 6 codes agian.what does this mean?thanks for any ideas.these forums are great.finally making slight progress
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- #29 of 45
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Re: 2001 TOD auto flashes but does not engage [hiprollc]
by brentb1
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Nov 19, 2008 (4:27 pm)
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Replying to: hiprollc (Sep 01, 2008 8:09 am)
one more question.with all these codes i have i can see where my 4 high(tod)might not work but why isnt my 4 low working anymore?it goes into 4 low but doesnt lock the front wheels.thanks agian.
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- #30 of 45
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Re: 2001 TOD auto flashes but does not engage [brentb1]
by hiprollc
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Nov 20, 2008 (4:14 pm)
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Replying to: brentb1 (Nov 19, 2008 4:27 pm)
Sorry about the slow and late responses, just don't spend much time on the computer anymore. Brentb1... with all those codes, my guess is that someone probably already has "diagnosed" problems with the 4WD system and probably disconnected some of the sensors in order to try to eliminate the codes, but probably just made it worse. Did you buy this vehicle new and these issues just start or did you buy it used and it was like this when you bought it? f the 4-low is not working, that means the vacuum solenoids are not engaging; could be electrical or vacuum related and is common for vehicles that are normally run on the highway and never "cycled" into 4WD. With all your codes, I wouldn't know where to begin. By the way, once you reset the codes and then restart the vehicle or even go back to the ON position, the sensors will immediately return all the codes unless you have corrected the problem. So, when you get an item fixed, you can reset the TOD ECU and that code should not reappear; if you don't fix it, the code immediately returns.
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- #31 of 45
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Re: 2001 TOD auto flashes but does not engage [hiprollc]
by brentb1
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Nov 23, 2008 (2:04 pm)
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Replying to: hiprollc (Nov 20, 2008 4:14 pm)
not sure what all the codes mean that i have but i did find the front 2 vacuum soleniods to be bad.1 is stuck open and the other is stucked closed.si what i did for now was switched the vac.lines around so the one that has vacuum will lock my axle actuator and it worked.i have low and hi now.dealer here wants 200.00 for the soleniods(crazy).what and where is the electromagnetic coil?that is one of my codes and what does it do?thanks for everyones help.
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- #33 of 45
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99 trooper tod code 31
by brentb1
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Jan 22, 2009 (12:59 pm)
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i have a 99 trooper with a tod code 31(electromagnetic coil)has anyone had this and what was the fix.the only thing i know is to replace the t-case and hope its good.is there a way to check the coil?could it be wiring also?thanks......id hate to swap out t-cases and have the same issue but i need the 4wd high(tod)fixed asap.........
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- #34 of 45
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tod code 28
by brentb1
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Mar 07, 2009 (10:53 am)
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i have a 99 trooper and have tod code 28 which says axle disconnect output & axle switch output abnormal.can anyone tell me what this means,where its located and what i can do to fix it.thanks.
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