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Isuzu Trooper 4 wheel drive display flashes check light

24 messages,  Last post on Nov 06, 2009 at 6:44 AM

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#15 of 24 1999 trooper front axle actuator by brentb1 Oct 14, 2008 (3:35 pm)
my trooper has now 4wd.the high never worked but the low always did until today.can i apply vacuum to the front axle actuator and put it in 4 low to isolate the actuator?any help would be great i just bought used just to have 4 wd.what else can i do or check?thanks.im new to the site also.i would like to get the 4 high working also.my tod flashes the red check and rear wheels flash green at times.
#16 of 24 FIXED! 2001 would not go into 4x4... here's how... by wesbellmore Nov 16, 2008 (5:45 pm)
http://isuzufaq.ibctech.ca/#faq68   Check the above link for into how to locate the VSV on your front axle. (Vacuum Switch Valves.) I fixed mine FREE as follows:   First, remove both VSVs from the axle. They are both mounted on a little rectangular plate, and both will come off by undoing two 10mm nuts. One VSV is BLUE, the other is GREY. Label and unplug all the vacuum hoses (carefully!) and then disconnect the electrical lead from each VSV. The electrical connector plug is a bit tricky to disconnect...you have to pry up a thin, springy brass colored retaining wire on each side of the connector, then GENTLY pry the connector off with a twisting motion of a straight-blade screwdriver. EASY DOES IT because that thing is fragile..if you crack the connector, you're 99 per cent hooped.   Once you have the VSVs off, use little jumper wires with alligator clips on them to connect to the electrical spades inside the plastic housing of the VSV. Hook the other end to the car battery and listen for a VERY QUIET "click" from the solenoid inside the VSV. This solenoid controls the vacuum flow to the vacuum actuator, which moves a toothed sleeve back and forth across splines on the ends of the axles, which is what drives the front axles when you press the dash SOFT switch.   The whole purpose here is to get the VSVs clean and operating properly. You might not have to replace them at all...just shoot some NON-GREASY electrical contact cleaner into all the outlets of the VSV and operate the solenoid a whole bunch of times...get it working freely again. (NOTE: DO NOT USE WD 40 or anything greasy / oily to spray inside the solenoid!!!!!!!! Make SURE you use a solvent based cleaner that DISAPPEARS completely when it evaporates. Spray some into your hand to make sure. Use electrical contact cleaner, specifically made to clean electrical parts. TRUST ME HERE...test your product on your hand to make sure it does not leave ANY residue.)   GOOD LUCK DOODS!!!! Replies to this message: brentb1 (Nov 17, 2008 3:46 pm)
#17 of 24 Re: FIXED! 2001 would not go into 4x4... here's how... [wesbellmore] by brentb1 Nov 17, 2008 (3:46 pm)
Replying to: wesbellmore (Nov 16, 2008 5:45 pm) will try this saturday.thanks alot for the reply.a concern of mine is that the 4 low always worked since i had it(4 months)then all the sudden the 4 low wont work.any ideas on why or what may have went bad?what should i check for the 4 low?thanks for any info.i need to get it fixed asap.
#18 of 24 2002 TOD display flashes CHECK light by jbcol1 Mar 09, 2009 (10:59 am)
Just recently on my 2002 Trooper the TOD display flashes the red CHECK light. In my problem, as soon as the engine starts the light starts flashing. Just the red CHECK light. My "Auto 4WD" does not seem to work. The 4WD low does work properly. I checked the vacuum solenoids and they seem to be functioning properly when I test them off the vehicle. Any ideas on where to go from here?   John Replies to this message: brentb1 (Mar 09, 2009 2:10 pm) jbcol1 (Mar 10, 2009 8:56 am) anjinsan5 (Nov 06, 2009 6:44 am)
#19 of 24 Re: 2002 TOD display flashes CHECK light [jbcol1] by brentb1 Mar 09, 2009 (2:10 pm)
Replying to: jbcol1 (Mar 09, 2009 10:59 am) same problem i got here.pull your tod codes yourself manually.this will lead you to whats wrong Replies to this message: jbcol1 (Mar 10, 2009 8:56 am) anjinsan5 (Nov 06, 2009 6:44 am)
#20 of 24 Re: 2002 TOD display flashes CHECK light [brentb1] by jbcol1 Mar 10, 2009 (8:56 am)
Replying to: brentb1 (Mar 09, 2009 2:10 pm) I finally got them, 13, 14, 24..... haven't gotten any further yet. What did you find? Replies to this message: anjinsan5 (Nov 06, 2009 6:44 am)
#21 of 24 Trooperdiva by trooperdiva Apr 04, 2009 (6:59 pm)
I recently had the intake manifold values replaced on my 1999 Trooper 3.2 and now I have a problem with my display of the TOD the rear wheel display green flashes and the check light flashes red. My 4 wd drive will engage and 4L has no problems. Sometimes the transmission will slip. Help any answers?
#22 of 24 Re: 4 whd drive display flashes check light [atfdmike] by trooperdiva Apr 06, 2009 (2:34 pm)
Replying to: atfdmike (Feb 16, 2008 10:29 am) It is a 1999 trooper with TOD System with 132,400 miles and i have had all the pcv, sparks plugs, intake casket value,value cover set. fuel links & in 2007 timing belt redone and head casket on the left side. Now the right side head casket redone and i smell no oil burning. In the display i have the front wheels and rear wheels in the display and the rear wheels keep flashing green on and off and they the light that reads check comes in red in the display area and flashes on and off. No problems putting the vehicle in 4 wheel drive. It is the 3.5 liter engine I got when had around 78,560 miles and I am the 2nd owner of the vehicle and has all the goodies like the moonroof and captain seats and etc.
#23 of 24 1999 3.5L trooper flashing light in the display panel TOD. by trooperdiva Apr 28, 2009 (5:39 pm)
I found the problem to my TOD system. The flashing display light in the TOD area was losing the signal to the traction system in the rear end that was assoicated with the sensors in the rear wheels. Remember to reset the computer once you have fixed the sensors problem by disconnecting the battery to have the computer reset itself. I hope this helps anyone else out there.
#24 of 24 Re: 2002 TOD display flashes CHECK light [jbcol1] by anjinsan5 Nov 06, 2009 (6:44 am)
Replying to: jbcol1 (Mar 10, 2009 8:56 am) I have a very similar problem on my 2002. How do you "pull the codes manually"? I rended an obd scanner but it says that there are no problems. Is there another place to plug in the scanner to get TOD problem codes?

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