2005 LR3 brake switch issue-fault code P0504. Need help!!
#21
#22
Introducing variables?
Regarding Mufflers, fortunately I know nothing about them as I still have the original exhaust system which I like very much. About the only concern I would have is that a new system would have a different back pressure, either more or less, and knowing Land Rover, there is probably some sensor somewhere that will note the difference and put the 3 into safe mode.
Well I am probably exaggerating, but I regard it as so difficult to keep a 3 running in stock order, the idea of adding variables is to me, frightening.
As you just discovered, it is tough enough trouble shooting the 3 when all is factory.
Regarding tyres, I guess the question is what are the tyres for?
My 18" rim tyres are winter snowflake tyres. For that, I installed the door sticker marked narrow width tyres, Pirelli Ice & Snow 235 65 R18XL.
They are the stock diameter of 30 inches and hence will not bind in the wheel wells when the suspension drops; are the XL load rating which Land Rover seems to think matters, and are narrower than the 19" rim summer tyres so I like to think I have a bit better winter traction than I would with wide rubber.
Well I am probably exaggerating, but I regard it as so difficult to keep a 3 running in stock order, the idea of adding variables is to me, frightening.
As you just discovered, it is tough enough trouble shooting the 3 when all is factory.
Regarding tyres, I guess the question is what are the tyres for?
My 18" rim tyres are winter snowflake tyres. For that, I installed the door sticker marked narrow width tyres, Pirelli Ice & Snow 235 65 R18XL.
They are the stock diameter of 30 inches and hence will not bind in the wheel wells when the suspension drops; are the XL load rating which Land Rover seems to think matters, and are narrower than the 19" rim summer tyres so I like to think I have a bit better winter traction than I would with wide rubber.
#23
#24
Summer tyres are Bridgestone H/L.
My summer tyres are Bridgestone H/L on my 19" rims in the stock 255 55 R19 XL size. They actually have a M+S winter rating but that is probably due to the rubber rather than the tread design.
Up here, on pickups, a lot of guys install the A/T tread and run all year round with that. They are a practical alternative with regards to price, availability, and suitability.
Up here, on pickups, a lot of guys install the A/T tread and run all year round with that. They are a practical alternative with regards to price, availability, and suitability.
#26
#27
The shift interlock is controlled by the TCM(valve body) based on CAN input from the ABS about the second switch inside the brake switch. This switch is normally closed, and when pedal is depressed, voltage is removed. If you are not getting proper power to that side of the switch, the ABS doesn't know that the pedal is ever not depressed, which is the problem. The fault is a correlation fault between the two switches in the brake switch, so turning the vehicle on with the pedal depressed, the lamp control portion of the switch shows depressed, as does the ABS input, as soon as it is released, the lamp side shows released, but the ABS side still shows depressed.
There is a splice in the RH door sill that I have seen cause issues with this before, as well as a connector(C1165L - located in LH lower A-pillar area) You will be looking for a Red wire, and possible corrosion in the splice/connector.
There is a splice in the RH door sill that I have seen cause issues with this before, as well as a connector(C1165L - located in LH lower A-pillar area) You will be looking for a Red wire, and possible corrosion in the splice/connector.
#29
maybe the HVAC drains instead
If so, per the links below, rather than the moon roof drains, one or both of the thru the floor hoses that drain the HVAC and cowling water can be disconnected. This is a relativity easy fix and costs nothing other than a bit of time.
If the carpet seems more wet on one or both sides of the transmission tunnel, these hoses are the reason. Regardless, over time they tend to shrink and fall down like socks so on occasion it is desirable to slide them back up onto their respective heater cowling nipples.
https://www.disco3.co.uk/gallery/dis...um=30300&pos=5
https://www.disco3.co.uk/gallery/dis...um=30300&pos=8
https://www.disco3.co.uk/gallery/thu...hp?album=30300
#30
Hi bbyer. No carpet issue. Code P0504. roverguy7 found the issue to be "the splice in the RH door sill that I have seen cause issues with this before, as well as a connector(C1165L - located in LH lower A-pillar area) You will be looking for a Red wire, and possible corrosion in the splice/connector".
I just can't find the splice or connector C1165L location. A diagram/picture would help.
Also in the glove fuse glove I found this lose connector missing a Relay?
I just can't find the splice or connector C1165L location. A diagram/picture would help.
Also in the glove fuse glove I found this lose connector missing a Relay?
Last edited by arl; 03-27-2020 at 07:31 PM.