# Homemade bypass for 2003 Land Rover Discovery traction control/ABS/HDC lights? **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** landrover, discovery\ **Created:** [May 20, 2018, 12:49am UTC](https://community.cartalk.com/t/homemade-bypass-for-2003-land-rover-discovery-traction-control-abs-hdc-lights/117686 "2018-05-20T00:49:39Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Greg37](https://avatars.discourse-cdn.com/v4/letter/g/3be4f8/32.png) [@Greg37](https://community.cartalk.com/u/Greg37)\ **Post date:** [May 20, 2018, 12:49am UTC](https://community.cartalk.com/t/homemade-bypass-for-2003-land-rover-discovery-traction-control-abs-hdc-lights/117686/1 "2018-05-20T00:49:40Z")
What is the detriment to making a home-made bypass to the ABS Modulator Shuttle Valve Switch to eliminate the “3 amigo’s” (Traction Control/ABS/HDC) that will turn these fault lights off? ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [May 21, 2018, 1:01am UTC](https://community.cartalk.com/t/homemade-bypass-for-2003-land-rover-discovery-traction-control-abs-hdc-lights/117686/2 "2018-05-21T01:01:56Z")
How about the other option . . . ? Fix the problem, so that you won’t have to modify anything? Is it possible you already know what the problem is, but don’t want to spend the money for a proper repair? Don’t take this the wrong way . . . I’m imagining a scenario where you perform some kind of modification, so that those warning lights never come on, then you sell the vehicle to somebody, don’t mention the modification, and they assume the abs system is fully functional It’s possible you intend to drive the vehicle until the wheels fall off, and then you’ll junk it But I don’t really know you, and there are unscrupulous people who would do what I mentioned in my scenario ---
**Author:** ![Greg37](https://avatars.discourse-cdn.com/v4/letter/g/3be4f8/32.png) [@Greg37](https://community.cartalk.com/u/Greg37)\ **Post date:** [May 21, 2018, 1:56am UTC](https://community.cartalk.com/t/homemade-bypass-for-2003-land-rover-discovery-traction-control-abs-hdc-lights/117686/3 "2018-05-21T01:56:58Z")
I bought it for a family member’s first car& I live in snow country. Will the ABS still work? Of course I grew up before ABS, so I can handle sliding around. In fact I’d rather not use an ABS system, I’d prefer the days before. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [May 21, 2018, 2:09am UTC](https://community.cartalk.com/t/homemade-bypass-for-2003-land-rover-discovery-traction-control-abs-hdc-lights/117686/4 "2018-05-21T02:09:39Z")
> [@Greg37](#): > > I bought it for a family member’s first car All the more reason to have functioning ABS . ---
**Author:** ![pyrolord314](https://avatars.discourse-cdn.com/v4/letter/p/6a8cbe/32.png) [@pyrolord314](https://community.cartalk.com/u/pyrolord314)\ **Post date:** [May 21, 2018, 4:17pm UTC](https://community.cartalk.com/t/homemade-bypass-for-2003-land-rover-discovery-traction-control-abs-hdc-lights/117686/5 "2018-05-21T16:17:12Z")
> [@Greg37](#): > > Will the ABS still work? Not if the problem that is causing the ABS light to fire is still a problem…I highly doubt you’ll find a mechanic who is willing to bypass and automatically keep lights shut off for you… ---
**Author:** ![texases](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/texases/32/862_2.png) [@texases](https://community.cartalk.com/u/texases)\ **Post date:** [May 21, 2018, 6:55pm UTC](https://community.cartalk.com/t/homemade-bypass-for-2003-land-rover-discovery-traction-control-abs-hdc-lights/117686/6 "2018-05-21T18:55:49Z")
Find out what it’ll cost to get this (and other hiding problems) fixed, then decide if it’s worth the $$. These can be absolute money pits, better to get out before you start digging. ---
**Author:** ![VOLVO-V70](https://avatars.discourse-cdn.com/v4/letter/v/8e8cbc/32.png) [@VOLVO-V70](https://community.cartalk.com/u/VOLVO-V70)\ **Post date:** [May 21, 2018, 8:07pm UTC](https://community.cartalk.com/t/homemade-bypass-for-2003-land-rover-discovery-traction-control-abs-hdc-lights/117686/7 "2018-05-21T20:07:16Z")
> [@texases](#): > > These can be absolute money pits, better to get out before you start digging. Deep money pits. Not exactly the best choice for someones first vehicle.