![]() | #511 |
Senior - BHPian Join Date: Sep 2006 Location: zxc
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![]() | #512 | |
Distinguished - BHPian ![]() | ![]() Quote:
The ABS sensors provide input to the ECU. It can easily distinguish between a wheel locking (ABS will kick in) or a wheel spinning up (TC will kick in). Jeroen | |
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![]() | #513 |
Senior - BHPian ![]() Join Date: May 2008 Location: Bangalore
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| ![]() I tried searching in this thread, but did not find the answer, or I used the wrong words to search. Is it possible to fit aftermarket ABS? Has anyone done it, what are the implications? Does this void warranty? |
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![]() | #514 | |
Senior - BHPian ![]() Join Date: Mar 2007 Location: Bangalore
Posts: 8,069
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All ABS manufacturers design an ABS system for a specific car, and fine-tune it after 100's of test runs under different conditions on different surfaces. No one else has the wherewithal to replicate the same. If your car didn't have an ABS system to start with, AND the model does have another variant with ABS, at a pinch one can mount the ABS system later. This is unlikely to be cheap, as this would entail replacing the wire loom / harness too. | |
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![]() | #515 |
BHPian ![]() | ![]() Guys, Couldn't help posting this interesting image I found on FB. ![]() ![]() |
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![]() | #516 |
BHPian ![]() Join Date: Feb 2009 Location: Chennai
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| ![]() From last month the ABS warning light on my Innova dashboard has begun to intermittently glow rather weakly after a 100 km+ highway run. Flickers on for some time, flickers, then goes off again for several minutes. Happens only after extended high-speed drives; never happens in city driving. The car will be going in for a scheduled service next week. Any idea on possible causes so I can call the SA out on any bull he may spew / parts he may recommend replacing? If it makes a difference, the first time this happened, the blue 'high beam' light also glowed briefly even when the headlamps were dipped. Which makes me think it's likely to be an electronic issue and not mechanical. The headlamps have been upgraded to run 100/90W H4 bulbs with the necessary relays and wiring upgrades. The car is 5 years old and has run 90k km. Last edited by Perakath : 24th July 2014 at 17:29. |
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![]() | #517 | |
Senior - BHPian ![]() Join Date: May 2010 Location: Bengaluru
Posts: 3,364
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![]() | #518 |
BHPian ![]() Join Date: Feb 2009 Location: Chennai
Posts: 259
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| ![]() Thanks but battery was changed last year. |
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![]() | #519 |
Newbie ![]() Join Date: Nov 2014 Location: USA/Trivandrum
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| ![]() Flickering or intermittent lighting up of ABS light could be because of faulty speed sensors too. Each of the 4 wheels is equipped with a speed sensor which aids in the ABS operation; failure of anyone of these could trigger the light. Owners of vehicle with ABS should atleast test it atleast ONCE to get a feel of what to expect when it is activated and how it feels from a driver's point of view. I've heard people refer it to as Automatic Braking System instead of Antilock Brake System. Knowing how your vehicle behaves under ABS activation will definitely help when you really encounter such situations. a) ABS systems are speed-sensitive and won't be activated at very low speeds (your vehicle's owner's manual should have that info). b)Do NOT pump the brakes (ABS does it for you). Instead apply firm pressure on the brakes. c) The main objective of ABS is to give you directional stability while braking rather than skidding sidways or fishtailing. d) It doesn't guarantee you a shorter stopping distance. (this is an important point). The stopping distance actually depends a lot on the road condition (in addition to your speed). In snow or gravel, infact it takes LONGER to come to a stop. |
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![]() | #520 | ||||
Senior - BHPian ![]() Join Date: Mar 2007 Location: Bangalore
Posts: 8,069
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Fishtailing is an unrelated concept here. Fishtailing is caused by driver overcompensating for skid and turning the steering wheel alternately to the left and right to regain control. Quote:
If you have a switch that can switch ABS off in your car, find an isolated road covered with snow, sand or gravel, and test the braking distance yourself with ABS on and off. Keep other conditions identical in both tests. | ||||
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![]() | #521 | |
BANNED Join Date: Nov 2014 Location: Bengaluru
Posts: 174
Thanked: 133 Times
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I have a Dzire VDI, the 2013 model and it doesn't have ABS. However the ZDI one has it and I am pretty sure when the Dzire is face lifted like the Swift was recently the VDI variant itself will have ABS. Now the question is, can I get ABS into my car? | |
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![]() | #522 |
Senior - BHPian ![]() Join Date: Mar 2007 Location: Bangalore
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| ![]() ABS cannot be retrofitted. The biggest hassle is putting in the harness and piping. This has to be done before any other assembly goes into the car (after chassis etc. welding and painting), as the with-ABS and without-ABS wiring harnesses and brake line piping are different. |
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![]() | #523 | |
Senior - BHPian ![]() | ![]() Quote:
And what was the fix? Last edited by joybhowmik : 27th November 2014 at 21:31. | |
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![]() | #524 | |
Newbie ![]() Join Date: Nov 2014 Location: USA/Trivandrum
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Sorry, to have caused confusion. My observations were based on my own experience. a) Had to replace a front wheel speed sensor after the ABS light was flickering. b) The ABS system on my Nissan Maxima will NOT be activated below speeds of 6MPH (which would be around 10kmph). c) I don't think any passenger vehicle come factory equipped with an ABS kill switch. We have compared the stopping distances on Maximas with and without ABS (3 of us have the same car, 2 having ABS) in a variety of road conditions. Results were mixed with respect to stopping distances. I'll put it this way - In snow, it takes longer (than you think) to come to a stop. I would say, test your car to understand its capabilities and limitations. And thanks for the corrections, really appreciate it ![]() | |
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![]() | #525 |
BHPian ![]() Join Date: Feb 2009 Location: Chennai
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