I have a 1999 Vanden Plas. Early this year, I couldn't start the car because of "Restricted Performance". My mechanic resolved the issue by replacing the Crank Shaft Sensor. This was back in January.

Now a month ago, I got the same "Restricted Performance". A friend of mine who's also a mechanic attached his DTS reader which read 'P0355 Crankshaft Position Sensor A Circuit'. We replaced the Crankshaft Sensor thinking that the one the previous mechanic replaced was faulty. Sure enough the car started right up. That last 2 days until I got the same "Restricted Performance" with the same DTS reading.

What am I missing here? I am reading the issue wrong? I don't want to keep buying these damn sensors.......

 

Try cleaning the plug contacts with electric contact cleaner. Also, please visit the new member area and introduce yourself and your car;

New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum

 

And if that doesn't fix it, suspect the wiring.

 

So things got worse.....

I took everyone's advice and simply replaced both the sensor and the wiring connector. The wiring connector I bought came with two short wires in which I simply spliced into the existing wiring by cutting the old connector off.

After reconnecting everything, I tried to start the car and got three error messages.

Rear Bulb Failure
Stability control Failure
Traction control Failure

I have no idea how this is possible but simply re-wiring the crankshaft sensor....

What's weird is that I had the car at a high angle with two car mounts when I was doing work. I remember the last time I got 'Stability control Failure' & 'Traction control Failure' was when I had to get the car towed on a flat bed and after the car was on a high angle on the flat bed, we had to put it in neutral to release down but I couldn't because those two error messages came up....

Not sure if it's related but I refuse to believe that splicing in the new sensor is causing this....

here are the links where I got the sensor and the new wiring so you can see what I had to splice together

99 1999 Jaguar XJ8 Reference Sensor - Engine Electrical - Beck Arnley - PartsGeek

99 1999 Jaguar XJ8 Engine Crankshaft Position Sensor Connector - Engine Electrical - AC Delco, Standard Motor Products - PartsGeek

 

All three of the error messages you have can be a result of a low battery voltage. Well known and documented here. I suspect the only causal relationship between the CKPS and the error messages is that the car sat while waiting to for the new connector and the battery flattened.

Now, as to why you have RP, that is another matter.

 

+1 battery - it may recharge and be OK (or it may not)

 

You two were right about those error messages being tied to the low-voltage on the battery. After giving the battery a full charge, those error messages went away. Key word, THOSE...

Now I'm back to my original issue, crank-shaft sensor. I can't seem to get rid of this error message. Even after replacing the wire connection and the sensor once again (3rd time), it still will not allow me to start the car. I'm still getting the same error message as before.

At this point I'm at a lost. I have no idea what to do. I know if I tow this car to the Jag dealership to find out exactly what's going on and get it fixed, all the costs (including earlier last year regarding this same issue and my costs the past 2 months trying to fix it myself) will come out more than what the car is actually worth now. At this point, it's a parts car....

 

Have you pulled the codes via an OBD reader? It would help find the answer.

 

yea, it's the same reading each and every time

'P0355 Crankshaft Position Sensor A Circuit'

 

Hi Spolo85,

According to the 1999 Jaguar Diagnostic Trouble Code Summaries manual, P0355 indicates a malfunction of the Ignition Coil (Bank 1) primary or secondary circuit. Are you certain P0355 is the code you're getting? Here's the section from the manual that shows possible causes of P0355:



I'm attaching the manual for your reference.

Cheers,

Don

 

That actually makes a lot of sense. I should have looked up the code as it pertains to this car instead of taking the OBD reading at face value. I'm going to look into these coils this weekend and let you know how that works. Greatly appreciated!

 

Lesson learned! I bet this is much easier to run down.

 

You had 'P0355 Crankshaft Position Sensor A Circuit' -- but P0355 is standard (by law!) and nothing to do with that sensor!!

Junk whatever software/tool gives such CRAZY meanings.

 

Hi! I got the same problem that Spolo85 with my 2007 xkr

I change my crankshaft position sensor A... but the issues come back?

When i start the car, i see this and she not happy... After a shut it off and re-start again and every it Good 🤔

The code that Spolo85 saw!


Any update from somebody?

I install :
8 new Spark plugs
1 New crankshaft sensor
1 New battery and always plug in a smart charger

Sorry for my english...

 

Hello MR007JAG,

The warning on your instrument cluster means the Dynamic Stability Control / Anti-Lock Brake system is not available. This is unrelated to the P0355 diagnostic trouble code. This warning typically is due to a problem such as a fouled or failed ABS wheel speed sensor, a broken wire in a wheel speed sensor wiring harness, or a problem with the DSC/ABS control module such as cracked solder joints on the circuit board. If your iCarsoft scan tool can read ABS diagnostic trouble codes, you may be able to narrow down the diagnosis.

Regarding the P0355 code, like spolo85, your scan tool's definition may be incorrect. Here's the official definition from the Jaguar X150 Workshop Manual:




You can download the Workshop Manual at jagrepair.com, a very helpful website hosted by our member Gus.

Cheers,

Don

 

Update...

Thanks for the feed back Don 😀👍

​​​​​​With my icarsoft LR v3.0 specific for jaguar and land rover, i can check the signal of each speed sensor! The four speed sensor is Working and i can see a pulse from them???

So know i'am woundering if the speed module is damage?
And i still can not explain the rough idle and crankshaft code when staing the car...

Strange 🤔

​​​​​
​​​

 

Hi MR007JAG,

When you have a warning for the DSC system on the instrument cluster, there will be diagnostic trouble codes (DTCs) stored, but they will usually be Chassis (C-prefix) or Network (U-prefix) codes, not the more common Powertrain (P-prefix) codes. If your iCarsoft can read the C- and U- codes, you may have to select the relevant systems (for example, DSC/ABS) in order to read these codes.

Your rough idle is probably due to the problem with the cylinder number 5 ignition coil, not the crankshaft position sensor. As I tried to explain, the P0355 code does not mean there is a problem with your crank sensor. That definition of the code is incorrect. Jaguar's definition is that P0355 indicates a problem with the cylinder 5 coil or the coil wiring circuit. An easy test is to remove the coil from cylinder 5 and exchange it with the coil from another cylinder. I pick a cylinder on the other bank that is easy to access, such as cylinder number 1. I clear the DTCs, then run the engine for several minutes. Then re-scan to see if the P0355 code changes to P0351 indicating a problem with the cylinder 1 coil. If the code moves, you know that the ignition coil is faulty.

Cheers,

Don

 

Ok Don, i'am going back in the garage 🫡

I keep you update 😀

Thanks a lot

 

Update time from Montréal, Canada

Since the last post, i change coil #5 with cylinder #2 and erase all the code...

Same problem came back and wild i was riding it feel in limp mode with no trottle... I stop beside the road, re-start the jag and all good

So after that, i dis a hard reset with both terminal, clear all code and went driving... It started well all day but when coming back home it feel again in limp mode 🤬 not very fun thing...

This is the code i could Read







The last two code U04905-8f and U0405-83 seem to be normal and not important




Those two was There also...

So i read a lot of old posts and for my next move, i gona verified all my ground. But beside this, iam starting losing my mind 🙄. Maybe a bad ECM??

Help!

 

I’ve not encountered a bad ECM on an AJ27 engine before. The AJ26, yes but not a 27. That throttle code is *most likely* going to be the issue to restricted performance. I would definitely clean every single ground in the car, it certainly won’t hurt anything. Check all the connectors for a good clean contact pertaining to the throttle body.