Ok Ih8mud guys, this is my first thread ever on this forum and actually on any forum, so please be nice if I have screwed something up. I have been reading a lot on this forum and thought its time to do my part, so here it goes.
I own a 1996 Fzj80 triple locked, I love this car (ex range rover p38 owner for 8 years ) When changing the broken light bulbs on the instrument cluster, I found that the cluster actually has some extra functions which where never connected in the North America spec FZJ80, one function is the clogged air filter function indicator, which I think some diesel 80's had in some areas (maybe aussie) and I think some Petrol 80's in the middle east, I have seen pictures of the actual sensor in the engine bay, so this started me thinking it might be nice to add this function, today I started the little project.
So the second Bulb from the left (which ofcourse is the 2nd bulb from the right when looking at the cluster normally) is the clogged filter bulb, now you need to solder a little wire to the minus side of the bulb to the empty connection (#5 from left) on the next picture, all bulbs are supplied with 12v positive, the bulbs are controlled by functioning the minus side, normally the ecu will close the minus side for any of the bulbs when they need to light up.
The Clogged air filter sensor is very simple, it is just a delta pressure switch which closes the loop at a certain vacuum.
As you can see in the picture there is one spare connection that is not connected in the PCB, so I cheched the male side and as you can see it is empty as well, perfect for making an almost stock look and run a wire to there from the air filter sensor.
Here you can see the connector doesn't have any lead in the 5th position.
In this picture I have connected a 12v source to the supply side of the cluster and I have connected the minus to the newly soldered connection, light working perfectly.
Here another Picture just to make it more clear.
One small reminder, check if there is a light bulb inside the bulb holder, mine did not have any, so you need to place one in there.
I own a 1996 Fzj80 triple locked, I love this car (ex range rover p38 owner for 8 years ) When changing the broken light bulbs on the instrument cluster, I found that the cluster actually has some extra functions which where never connected in the North America spec FZJ80, one function is the clogged air filter function indicator, which I think some diesel 80's had in some areas (maybe aussie) and I think some Petrol 80's in the middle east, I have seen pictures of the actual sensor in the engine bay, so this started me thinking it might be nice to add this function, today I started the little project.
So the second Bulb from the left (which ofcourse is the 2nd bulb from the right when looking at the cluster normally) is the clogged filter bulb, now you need to solder a little wire to the minus side of the bulb to the empty connection (#5 from left) on the next picture, all bulbs are supplied with 12v positive, the bulbs are controlled by functioning the minus side, normally the ecu will close the minus side for any of the bulbs when they need to light up.
The Clogged air filter sensor is very simple, it is just a delta pressure switch which closes the loop at a certain vacuum.
As you can see in the picture there is one spare connection that is not connected in the PCB, so I cheched the male side and as you can see it is empty as well, perfect for making an almost stock look and run a wire to there from the air filter sensor.
Here you can see the connector doesn't have any lead in the 5th position.
In this picture I have connected a 12v source to the supply side of the cluster and I have connected the minus to the newly soldered connection, light working perfectly.
Here another Picture just to make it more clear.
One small reminder, check if there is a light bulb inside the bulb holder, mine did not have any, so you need to place one in there.
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