Hi,
Is there a way to disconnect the build out indicator light system? I do not want to remove the light bulb.
Maybe pull a fuse or disconnect a module?
Thank you,
Jomo

 

good question on a possible fuse

Headlights or other exterior lights ?

The lamp out feature is a current sensor inside the exterior lamp control or controls in the X300 production years

It can't be to low current ( burnt out bulb or missing or bad ground ) , or too high current ( incorrect bulb installed or base shorting out )

There was a change from 2 module to 1 in 96 after VIN # 746613

There was another change in the 97 model after VIN # Y and I think that is just a part # change referencing CDMAs resent fault

My 96 VIN # 755XXX only has 1 exterior module in the trunk

#s don't jive yet

https://parts.jaguarlandroverclassic.../brand/jaguar/

you would have to substitute a proper size resistor in the bulbs place but then you want to still have a functioning bulb

The easiest think would be a fuse for the specific fault lamp or remove the fault lamp in the instrument cluster

there are about 2 or 3 fuses for the instrument cluster in the left heelboard fuse box reference page 22 of the link below

the lamp control modules fuses are on page 21 in both left and right engine bay fuse box

http://jagrepair.com/images/AutoRepa...1996%20LWB.pdf

 

i just installed LED headlights with indicator halo rings.
when i did this i removed the bulbs from the front indicator housings in the bar.
i spliced a load resistor into the wiring there so the correct current draw is on the circuit.
50W load resistor spliced into the power of of the two bulbs on each side. tap into the positive of each bulb and the negative on the circuit.
it has enabled me to blank out my indicators.

if it ever stops raining here i will take a pic of the load resistor wiring to show what i did.

 

The 50 watt rating is needed as this relates to the range of current to satisfy the sensor ( when the bulb goes out or open ) but what was the resistance value ?

I believe you made a parallel circuit

 

These are the standard load resistors sold for the purpose. They are 50w 6ohm
in some circumstances 50w would be overkill, however with the jags system these would be needed for the front globes, as there is 2 bulbs at 21w each. So the 21w draw from each circuit is required to avoid triggering the globe out.
yeah parallel would be correct as the indicators share the same common ground but have their own power wires.

if i was putting an led globe in the rear indicator i would only use a 21w load resistor but in the front it was either use 2x 21w on each side, or use a 50w shared between the two globes.

 

Nailed it , I could tell from your earlier threads you are on of those guys

My Mom says I have to go to bed now

 

Thanks for the replies!.
To be honest, I was hoping to just disconnect the bulb out indicator system. Is this possible?

 

probably not.
it would be programmed into the lamp control module.
not sure if this is a programmable module or not.
if it is then maybe you can connect up the obdii and turn it off but i would think not.

and i would have a guess if you could it would turn off the system for every bulb.
easiest way by far (and maybe only way) would be to install a load resistor to trick the system into assuming a bulb is there drawing correct wattage.

 

That approach has more work involved then what Spud Maat did with the out in the open work area

The instrument cluster rear or car forward facing connectors on the IC are a pain

But if you do open up the IC there is a modification to make the coolant temp gauge read real and not be a dummy gauge

But I can be confused with the oil temp circuit

 

The bulb fail system is built into the lamp control module circuitry which actually operates the various lighting. The module is not programmable and the system can't be turned off. It seems to be a very reliable system for its intent! The 95s have 2 front lighting modules too.

That's why we went straight to fooling the system with in-line resistors. Nice work Spud Maat!

Tough to wire up the whole car with in-line resistors. Much easier to pull out the warning bulb in the dash.

I don't mind the bulb warning (I have a few LEDs installed) since it reminds me when the lights are on. But I would prefer it was a green light not amber. If I lose a bulb somewhere I will notice soon enough without relying on that technology!

 

Can someone please tell me where the lamp control modules are located in my 95 xj6? Also where are they located in a 96? Are they interchangeable?

 

There was a change in exterior lights wiring design and fuse ratings after VIN # 746613

The exterior lamp control modules should not be interchangeable between 95 and 96

On a 95 there are 2 under the hood on left and right

On a 96 there is only 1 in the trunk

 

Right Parker. On a 95 the fronts are behind the headlights and the rear is in the trunk fuse box. The updated single rear unit for the 746613+ is not interchangeable with the previous rear unit version even though the boxes look identical. Kinda stuck with all 3 on the 95s.

I discovered that (for USA) they took the side marker lights out of the bulb fail warning for the 96+ cars. Possibly other bulbs too.

 

there are no front bulb warnings at all after 95

 

interesting you say there is 2 LCM in the 95 in the front.
i have not noticed these. i will look for them myself when i get a chance.

i know when i installed my aftermarket keyless entry kit (my fob was not working and this was a nice good solution) and spliced into the indicator wiring so the indicators would flash, i only had to splice into the wiring on the LCM in the boot (trunk) and the rear and the front indicators flash.

In AU we have no side mark lights front or rear standard (i wired these in myself) so there is no bulb out warning at all for these in any year model.
i will check the LCM in my boot and see what the number is on it....

ok so i just checked mine which is a Feb '95 build date.
have not had a chance to check in the front (not sure where to look)
but this is in the boot (trunk).


so by looking at this, it controls all lights, front and rear with the exception of the headlights and front foglights.
it states the side repeaters and it state 6 x 21W for indicators which is 1 in each rear side, and 2 in each front side.

and to clarify, this is the part number for the updated module (as it says COMBINED LAMP MODULE) and clearly states not interchangeable with LNA2245 which is the earlier part#.
and as said my car is a 02/95 build with VIN#740464. with Aus Complience date 6/95
so i would have a guess that AU models used the combined module from earlier dates. maybe partially due to the lack of side mark lamps installed (we had just reflectors from factory, which i have since upgraded to lights)

the date stamp on that unit however is 8/95 so doesn't appear to be the original unit from factory either.

according to https://parts.jaguarlandroverclassic.../brand/jaguar/ the updated module comes into effect from VIN#739426