Hey there momsS.................There's a very useful thread on codes in the FAQ section that covers most of the codes if not all of them.
Sods law says that your's aint there, but have a look anyways bud.
In the meantime......Anyone else help a brother out?

Jim

 

Well, I had to do a bit of research since this code wasn't on Racers list. I've since updated the list.

P1857 Transmission Transfer Case Contact Plate 'C' Short Circuit To Ground

Never heard of such problem...might be common, might not. We'll let the techs help out.

 

P1587 Throttle Control Unit Modulated Command Malfunction

 

Thats a Jag tech question bro I reckon.

Jim

 

Probably doesn't get you much further forward but here's a breakdown of the characters within the codes for you


Jim


The first alpha character identifies the system generating the code P = Powertrain

B = Body

C = Chassis

U = Undefined
The second digit says if the code is generic - same for all OBD-II systems - or manufacturer specific
0 = Generic (zero)
1 = Enhanced (manufacturer specific)
The third digit is sub-system type for that code
1 = Emission Management (Fuel or Air)
2 = Injector Circuit (Fuel or Air)
3 = Ignition or Misfire
4 = Emission Control
5 = Vehicle Speed & Idle Control
6 = Computer & Output Circuit
7 = Transmission
8 = Transmission
9 = Reserved
0 = Reserved

 

You need a throttle body... $$$$$$$$$$$ 1500.00-2000.00 depends where you live...


check out my store ... new lambs WOOL FLOOR MATs and used 04 xj floor mats.

 

If Jag genius is correct moms and he's usually pretty on the ball why not also try checking out Ken@britishparts
Jim