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Re: TCS Posted by Ari [Email]  (#2847) [Profile/Gallery]
(more from Ari) on Wed, 29 Nov 2000 09:47:44
In Reply to: TCS, don  [Profile/Gallery]
, Wed, 29 Nov 2000 00:58:14
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In general, leave the TCS off switch in ON. TCS is on every time you start the car, and the OFF switch just turns it off until you shut the car down, or hit the switch again.
With TCS Off, you can spin the tires. Now, if this is what you want to do (and there are reasons for it), turn TCS Off. But under normal driving conditions, TCS is pretty unobtrusive.
The major reason for the TCS off switch is a few special cases where TCS does more harm than good. First, in very 'spirited' driving where a driver would want some wheelspin, or at least doesn't want the throttle being cut back or the brakes applied without the driver in the loop.
The other time is a special case in very slippery conditions. If the car is stopped on ice on a slight hill, TCS can actually keep the car from going anywhere. The car is stopped, and when you hit the gas, however lightly, the wheels spin a little, and TCS immediately kicks in and keeps the wheels from spinning - result - you go nowhere. In this case, you'd turn TCS OFF and drive off carefully. A little wheelspin is necessary to get moving.
What the TCS Off Does Not Do is avoid limp-home mode. If the TCS detects a fault in the system, like a sensor problem or the like, it turns itself off and drops the car into limp-home mode. This results in severly reduced power. This is a problem that can happen in TCS-equipped cars. The TCS Off doesn't help this problem. Even with the switch OFF, the TCS is checking its sensors for problems. This is because TCS-equipped cars are partially drive-by-wire, so even if there is no Traction Control going on, the throttle is at least partially controlled electronically, and if the system detects a problem, it's going to reduce engine power, because the downside (engine runaway) is pretty severe.
Good luck!
, Wed, 29 Nov 2000 00:58:14, Wed, 29 Nov 2000 10:52:40, Wed, 29 Nov 2000 09:47:44 <-- Viewing This Message
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