Well- I did not make that much progress.

Good-
1. Got BT module- phone paired no issue
2. Replaced shifter and parking brake switch- code for those all gone.
3. Replaced drive belt and serpentine belt.

Bad-
Parking brake fault-
Replaced parking brake switch and parking brake module- No dice- Motor won't engage. So fault with motor for sure now.

New issues-

Transmission- P0782 now shows- I can trigger the 2 to 3 gear repeatedly if i drive slowly and allow 2 to 3rd gear shift to occur at 30 mph. Above or below. The transmission won't lockup. But at 30mph, 2nd to 3rd shift, I can always get this fault. So I assume my tranny is gone. It already has gone thru the fluid and pan change. Bracket and shifter all checked. So rebuilt or new?

CEL- its on after the transmission fault. But there are no code.

P1582- This is new. I have no idea what that is. Anyone have a clue?

This is for 2004 XJR.

 

Hi krispykreme,

The P1582 code indicates that "Flight recorder" data is stored because any one of five conditions has occurred:

Inertia switch activated

Throttle limp-home mode activated

Engine starts and stumbles

Engine fails to start

Engine stall


All the codes are definined in the X350 Workshop Manual which you can download in six sections at the links below:

http://www.mediafire.com/download/md...f+contents.pdf
http://www.mediafire.com/download/aa...nformation.pdf
http://www.mediafire.com/download/n3...2.+Chassis.pdf
http://www.mediafire.com/download/9b...Powertrain.pdf
http://www.mediafire.com/download/0i...Electrical.pdf
http://www.mediafire.com/download/4j...+and+Paint.pdf


The "P" codes are defined in the Powertrain section, "C" in Chassis, "B" in Body, and "U" (mostly network codes) in the Electrical section. The Workshop Manual gives possible causes and resolutions for each code. It seems possible that your transmission fault could be related to a throttle position limp-home mode and thus related to the P1582.

The 2004 Electrical Guide with schematics can be downloaded here:

http://www.jagrepair.com/images/Elec...al%20Guide.pdf


Cheers,

Don

 

Could be low on trans fluid.

 

+1 additionally has the TCM been re-flashed to newest calibrations?

 

I have checked the transmission fluid level. It appears to be ok.

TCM was flashed when I did the pan change.

May be I should do one more change see if it improves. The symptom only shows when car is warm and at 30 mph.

I will try to do another fluid change see if that improves. I also ordered a new TPS sensor.

Hopefully that will resolve my issues.

 

40 degrees C - trickle from the fill hole. Also, did you measure the vehicle to be level at the side rocker or the trans pan itself?

I check for true level at the trans pan for best results with checking the fluid. Level could be thrown off with the air suspension. (Unless of course you have the car on a hydraulic lift then all should be level)

Just my $0.02

 

KK, I didn't have any luck with getting rid of my "parking fault" after I replaced the switch( behind the gear shifter) and hoped it would take care of it. Nothing changed. Looked in the cabin for the fuse ( a 5 Amp) and it was fine. Am thinking it is the brake motor which seems to be a joy to get to above the transaxle area. I did have a mechanic check the brake cables and move the actuator and he thinks that is not frozen or a problem. I'd like to hear if you have any success.

I don't know if there is any programming needed for it, but am thinking of getting the parking brake module as I am told there is one. Have no idea where that beast is located? Anyone have any insights to the location?

 

While the car is running, btw. The first time I did mine I missed that "little" crucial detail and was short about 3qts. It still ran but shortly after that it decided not to shift from 1st gear. Limped it home and once I figured the error and followed the proper procedure everything worked fine. No permanent damage. I have put thousands of miles since then without issues.

 

Just want to throw this out there, how is the battery? A lot of spurious issues arise when the battery is not at 100%.

 

So quick update.

Parking brake-
Finally resolved. Bad acutator. Now I have functional parking brake.

Transmission-
1. I did another fluid flush. Problem resolved. No longer able to trigger the transmission fault. No matter how hard I tried.

2. I also replaced tps as well.

Car now drives fine. Need alignment and smog. She is ready for registration.

 

Parking brake module is on the right side of trunk. I have a spare if you need it. Most likely it's the acutator (which is pain the the *** to remove). My parking brake is now working.

 

Did you flush manually by doing a simple drain and refill? Or did you use one of those fancy ATF flush machines? If the latter, did you drain and refill prior to the flush or did you end up recycling some of the ATF that was in the pan prior to commencing the flush procedure?

 

I actually paid a shop to do a complete flush.

I ended up recycling some of the ATF from the pan.