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Isuzu Trooper TOD check light
10-31-2009, 04:12 PM
1998 Trooper. Has Traction on Demand 4x4.Check light blinks in the TOD gauge when in 4 wheel drive. Apparently I don't have drive to front wheels in high range but low range shows it has locked 4 wheel drive. What is going on? And can I drive it in low range? Thanks
11-14-2009, 11:45 AM
Most likely one or both of the vacuum switches that control Lock/Unlock of the front axle is bad. Same thing happened to me about a year ago (only the Lock one was bad, had a leak).
The service manual has a step-by-step to trouble shoot it.
BTW it's only sold as an assy.
St Charles Isuzu has the best price and free shipping.
12-17-2009, 07:50 PM
Is the blinking happening only in 4L? If so, it could be as simple as the 4L should only be set in neutral, not in any other position?
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