range rover p38 .dose anyone know if....

powernut · Post by **powernut** » Mon Dec 17, 2012 9:07 pm

a heater control is interchangable with the digital type ..ie mine is a 1996 with the 3 dail control .and most p38 have a digital type ....any ideas..

Eliot · Post by **Eliot** » Tue Dec 18, 2012 3:44 pm

Presumably your's doesn't have air/con?

powernut · Post by **powernut** » Tue Dec 18, 2012 4:48 pm

yep mine is just a se no aircon or heated seats .but i know these wont work .but as both units are electronic .i wonder if the units are inchangable on the same year..( basicly would look a little better

Eliot · Post by **Eliot** » Tue Dec 18, 2012 5:45 pm

You are going to need to study the connectors and pin outs - unless someone else has seen them side by side. Looking on my fAultmate diagnostics, I can't see any settings for the type hvac unit used - which is good.
just looked at the connectors, and c246 on yours is 12 pins and the a/c one is 20 pins. So not a direct plugin replacement.
the servo connectors are the same, not looked at blower yet.
The a/c one has additional sensors such as sunlight and an aspirator which I suspect you will need.
I think it's possible, with a bit of study in rave, which I've just done on my train journey home.

powernut · Post by **powernut** » Tue Dec 18, 2012 6:02 pm

Eliot wrote:You are going to need to study the connectors and pin outs - unless someone else has seen them side by side. Looking on my fAultmate diagnostics, I can't see any settings for the type hvac unit used - which is good.
just looked at the connectors, and c246 on yours is 12 pins and the a/c one is 20 pins. So not a direct plugin replacement.
the servo connectors are the same, not looked at blower yet.
The a/c one has additional sensors such as sunlight and an aspirator which I suspect you will need.
I think it's possible, with a bit of study in rave, which I've just done on my train journey home.

sounds instresting .once ive made the supercharger brackets etc .ill remove it etc.this rave is it a free download as ive herad a few on about it tbh

ChrisJC · Post by **ChrisJC** » Tue Dec 18, 2012 7:21 pm

You need a darn good look.

I tried to swap out the controls with another unit that looks identical, but is from an earlier model and has a different part number. It didn't work!

Chris.

powernut · Post by **powernut** » Tue Dec 18, 2012 7:24 pm

ChrisJC wrote:You need a darn good look.

I tried to swap out the controls with another unit that looks identical, but is from an earlier model and has a different part number. It didn't work!

Chris.

well thats answered my question ill bin that idea then cheers chris

Eliot · Post by **Eliot** » Wed Dec 19, 2012 10:50 am

ChrisJC wrote:You need a darn good look.

I tried to swap out the controls with another unit that looks identical, but is from an earlier model and has a different part number. It didn't work!

Chris.

The arrangement for the A/C clutch was changed on the later ones. Early ones drove the clutch directly and later ones [sensibly] went via a relay.