I have 1998 xj8 &have developed a list of faults. Central locking failed,windows not Working,rear fogs& rear brakes( not eye level) various fault messages doors open etc.engine runs fine but gear box stuck in park. (will come out if I use button by j gate). Car will drive ok. Could these problems be linked to body processor module.

Hi Robin,

 

First question:- Is you battery OK?

 

If it is, the fault message could well be linked to sensors failing.

 

The gearbox is supposedly sealed for life, but some members have changed the oil at circa 75,000 miles and have noticed a big difference.   The oil is a bit expensive, but it is important to use the right stuff.

 

Peter

Been given 2 options. 1 security & locking control module or body processor module 2. P1638 can link ECM/instm circuit/network Error message came up on diagnostics

Sorry Peter Yes the battery is ok AA suggested security/ locking control module because 2brakelights. , reverse lights, central locking don not work. He thinks they be tied in to the security side

Robin