ABS MODULATOR FIX (NO more SVS fault)
#121
Different Army than me I'll bet. The ABS light should have no effect on passing a smog test (those lights would probably fail you on an MOT test, but you don't have to worry about those in this country) But call them to make sure.
#122
#123
3 amigos back
i ran the codes thanks to don's help with scanner, and last time i got shuttle valve and right front sensor low.
now i get one fault, right front sensor no output.
i did the option b, so i guess that works for now, i think my shuttle valves still leak so i dont know how long that will last.
since i have this front right output issue, i ordered an abs sensor. as i posted earlier anyone do this repair?
it now comes with extra long wire and you need to plug into abs ecu. i think land rover decided the plug was not a good idea in engine bay. so this wire bypasses that plug.
as i mentioned i think some techs splice and use old plug design.....has anyone been down this path before?
now i get one fault, right front sensor no output.
i did the option b, so i guess that works for now, i think my shuttle valves still leak so i dont know how long that will last.
since i have this front right output issue, i ordered an abs sensor. as i posted earlier anyone do this repair?
it now comes with extra long wire and you need to plug into abs ecu. i think land rover decided the plug was not a good idea in engine bay. so this wire bypasses that plug.
as i mentioned i think some techs splice and use old plug design.....has anyone been down this path before?
#124
I recently replaced the left front abs sensor on my 2004 Discovery due to the wire being cut. I spliced the new sensor to the original sensor wire near the connector in the engine compartment. I soldered the leads and used several layers of heat shrink tubing. This repair has worked fine for me. However, the first replacement sensor that I installed was a Britpart sensor. The shaft on the sensor is too long and rubbed on the ring inside the hub until it failed. I replaced that sensor with a Wabco sensor. The Wabco sensor shaft is the correct length. In hindsight I probably should have just spliced the original sensor where the wire was cut but that was in the wheel well and would be exposed to slightly more water and mud more than in the engine compartment.
#125
abs sensor
these abs sensor wires are very thin, 20 gauge or so, and are subject to interference etc, and splicing these wires comes with issues. a techie told me never to splice these type of sensor wires , that is probably why the sensor wire now comes extra long to by pass the connector in engine compartment and they want you to tap directly into ecu.
i looked in passenger compartment footwell, and it was a mess of wires. i found the slab edu. but no idea which white wire goes to front left sensor.
without knowing this and without knowing how to puncture thru firewall, i decided to splice against my instincts. i had no choice.
if someone or some book tells me which white wire is the left front abs sensor then i would tap directly into ecu.
there are many white wires there by the way.
i replaced the sensor and spliced in the engine compartment near the fender rail.
splicing these type of wires is not recommended, it may work or may not or can be intermittent.
i read the wsm but it didnt explain to me which white wires go where on the slab ecu.
until that information is given, splicing is the default solution.
i looked in passenger compartment footwell, and it was a mess of wires. i found the slab edu. but no idea which white wire goes to front left sensor.
without knowing this and without knowing how to puncture thru firewall, i decided to splice against my instincts. i had no choice.
if someone or some book tells me which white wire is the left front abs sensor then i would tap directly into ecu.
there are many white wires there by the way.
i replaced the sensor and spliced in the engine compartment near the fender rail.
splicing these type of wires is not recommended, it may work or may not or can be intermittent.
i read the wsm but it didnt explain to me which white wires go where on the slab ecu.
until that information is given, splicing is the default solution.
#126
#127
#128
He also said he tested the SVS and it came back as failed. Does it need to be replaced?
#129
-Anthony
#130
amigos
to the poster who has return of abs faults svs issue....
i would recheck my wiring like the above poster said, check grounds etc, make sure wires not frayed etc. then what i would do is order another shuttle switch and also the o rings that comes with the modulator. most often brake fluid leaks through the orings causing the faults and eventually shuttle valve failure.
i believe the orings are black and tiny, you need to completely remove the abs unit from the car, flip it upside down, remove the switch, then remove those 2 plungers in there with a small circlip and then remove that plunger. inside there you will find a small oring to replace.
these orings are pricy and something like $35-40 for 2 orings and 2 circlips.....pretty expensive for an oring.
i would recheck my wiring like the above poster said, check grounds etc, make sure wires not frayed etc. then what i would do is order another shuttle switch and also the o rings that comes with the modulator. most often brake fluid leaks through the orings causing the faults and eventually shuttle valve failure.
i believe the orings are black and tiny, you need to completely remove the abs unit from the car, flip it upside down, remove the switch, then remove those 2 plungers in there with a small circlip and then remove that plunger. inside there you will find a small oring to replace.
these orings are pricy and something like $35-40 for 2 orings and 2 circlips.....pretty expensive for an oring.