First let me give a little history on the 2002 S-Type Sport. I bought it new in November of 2001. About 2 1/2 years ago I hit a deer, about $11000.00 damage to the right front quarter. The local dealer did a great job on the body and refinish work but the mechanical work was horrible. It was done in the body shop instead of the service dept. I have recentle been getting error P1584 so I replace the throttle body and it seams to have corrected the problem. Ijust scanned the OBD2 with enhanced AutoEnginuity scanner and found multiple codes that were obviously never cleared after the accident. I cleared the codes and now have a flashing DSC light no codes are being set. The info screen showeswhen the DSC switch is turned onor off. ANY help would be greatly appreciated. My email is deh1001@comporium.net

THANKS!!!

 

edhowey, I can't help but are you located in Fort Mill?

 

Yes I am in Fort Mill. Would enjoy talking to you if you are nearby. I have owned several Jags over the years. I still have a '58' XK150 DHC that is a basket case, I hope to start restoration soon. Following is a list of Jags that I have owned.

51 Mk 7
52 Mk 7
54 XK120 Roadster
58 XK150 DHC
69 E-Type coupe
78 XJ6L
86 XJ6 Soverign (bought in Europe)
94 XJ6
02 S-Type Sport

I look foward to hearing from you.

 

The NASTF site shows that Jaguar declared the module as a Continental Teves DSC so perhaps that will help you find information.

Also, if you can find how that specific light is wired that may help - is it maybe the ICM (cluster) that's decided to keep it flashing... The ICM is a variant of Ford's HEC, I understand.

 

see if you can post up the saved code list from the AE scanner... someone may be able to point out the actual DSC contributor. Any wheel speed sensor codes?

Also try a hard reset of the car, and see if the DSC is gone.

 

You're welcome to post the AE screen for your ABS (e.g. the Live Data Grid) and I'll compare it with mine.
If you've recorded all the DTCs, post them of course

 

It apears to me that a flashing DSC light means that the DSC control module must be reconfigured or calibrated. This comes from JTIS under DTCs. Do you have any experience with this?

Thanks for the response. Any info will be greatly appreciated.

 

Which part exactly of JTIS and what DTCs etc led you to it?

Can you read the data with AutoEnginuity? If not, what happens when you try? If you can read it, why not post it as I suggested?

As you have the advanced tool, why not use it?

 

Thanks for the info. When I first got the AE scantool last week I was getting a P1584 code (nothing to do with DSC) and a whole page full of other codes that apeared to stem the deer collision two years ago. I think that the dealer's body shop did not clear the codes. I did not record the codes but just cleared them with the AE software. That is when the DSC light started flashing. In reading JTIS DTC section on ABS/DSC it stated under a number of "C" codes that after reparing the fault that the DSC control module would have to be configured by a dealer as evidenced by a flashing DSC light on the panel. I am still working on the P1584 code, I have replaced the trottle body and drove from NC to FL (1200 miles) with no errors or codes. After returning to SC I now get a very intermitent fail safe mode which sets the P1584. I now think that I have a faulty accelerator pedal position sensor or possibly some damaged harness from the deer collision. Any suggestions!!! I will post the ABS live data grid when I get a chance to work on it again

Thanks for all the help.

 

If its intermittent, it can't be a non-configured control module, that doesn't make sense. It would be on ALL the time.

You can also test the throttle position sensor using AE, lots of goodies there at your disposal.

 

Thanks.
The DSC light is not intermitent, it is flashing all the time. The TPS is new OEM part from jag dealer. The P1584 and the DSC problems are seperate and unrelated problems. The trottle body is rebuilt from jaytan. All signals ,as viewed on AE, look to be normal.

 

I've hunted through the C codes but still can't find anything about DSC light flashing to mean the module needs configuring. Please be more specific as to where I should be looking e.g. the actual C code(s) you found.

You've got a rare gem with P1584, I don't envy you that one! I wonder if you could have a bad connector or chafed harness? I even wonder if the DSC module wiring may be partly in the same harness?

I understand that replaced throttle bodies need configuring into the car (PCM, I expect) - has that been done? It's a high-precision device so I expect this is a sort of training/learning thing so the PCM understands its exact characteristics. (Or some such!)

 

Look in JTIS DTC-C codes C1277 thru C1288 under possible causes, NOTE.
Maybe I am reading it wrong but it looks like that to me. I just tried disconnecting a wheel speed sensor and it turns the DSC light on solid (no flash) and sets a code for the wheel sensor. I just installed a new trottle motor relay so now I am going to see if that changes anything. If I still get the P1584 I will gut the engine harness and trace the wires from connector to connector, maybe I will take some connector pin ohm readings before I unbundle the harness. I will keep posting as I go foward. It worked for the last nine years so I know that it can be made to work again. I talked to a friend who is the parts manager for the local Jag dealer, he told me that they have replaced quite a few accelerator pedal position sensors. At $400 that will be the last resort.

 

Have you looked at this? I think Jag_Genius said replace the throttle body and its expensive!!

https://www.jaguarforums.com/forum/s...ead.php?t=5261
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As I read the DTC info, it's the MIL which would flash or be on (depends on your VIN) for those codes. Also, the code would be stored. But you say it's the DSC (ABS) which flashes and that you have no codes. So, I think you are looking in the wrong place. But - what is your car VIN? You said 2002 car, but before or after VIN M45254?

You didn't answer this: did you have the replaced throttle body configured?

A couple of others (at least) have had acc pedal sensor problems and they got the associated DTC(s). You can read the threads. Your P1584 does not appear to fit what they suffered as far as I can see.

If you still think it may be an acc pedal sensor, I believe you can use AutoEnginuity to read the acc pedal sensor values so why not see if you can do that?

 

Flashing DSC= needs to be calibrated. If it fails calibration, you may have a problem with a yaw rate sensor/steering angle sensor/active booster, etc.

P1584= TACM fault, IIRC. Before shotgunning any parts, I might suggest taking a good look at the battery....it will flag this code if the battery is weak. It may crank fine, but voltage may drop low enough to cause a fault. I have seen many throttles needlessly replaced for this reason, only to return with the same code. Again....I am going from memory on the code!

 

Jagtech1,

How long do these factory vented batteries typically last in a moderate U.S. climate?

 

4-5 years give or take.

 

Thanks for the battery tip. I will put a DVM on the battery while cranking. I still suspect possible wiring harness damage from the deer strike. Any suggestions for checking the harness? Also do you know if this is the harness that runs at the back of the engine near the engine to transmission joint. I had a hard time with this harness when I replaced the 5R55N tranny about 30000 miles ago.

Thanks again.

 

You still didn't post your VIN. The TACM may not exist in your car. Also, if your DSC now needs calibrating you must have a fault, such as wiring, to explain why it needs that. You may well find you can't get data using AE so try it. If you can't it helps you figure out which wires are damaged.

You can read the yaw etc sensors using AE so again you can check.