XJ XJ6 / XJ8 / XJR ( X350 & X358 ) 2003 - 2009

REM Module throwing errors?

Old 02-24-2018, 10:53 AM
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Angry REM Module throwing errors?

I have a 2004 XJ8 VDP, and recently had a new headliner fitted. I noticed after about 2 weeks the sunroof did not open and close properly and so I ran my Foxwell scanner through the system and on "Module 11, REM" as seen in the attachments were all RED.

My concern is that its showing the sliding roof switches "Short circuit to ground"and I was wondering if this condition would run my battery down?

Last week I did put in a new battery since the old one was from March 2011 and was not holding its charge, obviously I do not want to damage the new battery!

Another concern is it is showing problems with the fuel pump...the car starts and runs good?

It shows problems with the rear light which does not exist...all lights work OK?

Is it possible that the REM Module itself is faulty and giving off sperious signals?

Any help would be greatly appreciated, David
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Old 02-26-2018, 05:45 PM
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+1 to listen opinions and share experience re fuel pumps control out of range/non working when requested. I have same errors since I bought the car. I changed all pumps as I got error with secondary pump in addition.. nothing changed as well as car starts and running good. However error with secondary pump disappeared.
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Old 05-07-2019, 08:34 AM
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I have some problems with my fuel pumps, I have a 2003 xjr which has the same pumps as your car I think.
Could you tell me where you sourced the replacement fuel pumps and their specification?
Old 05-07-2019, 06:00 PM
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You had a new headliner fitted and shortly after problems with the sunroof closing which is in the same area.

I think you should investigate roof motor wiring.
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