What type of scan tool are you using?

If you are only using a standard OBD 11 scan tool then it may not picking up a jaguar specific code which may be causing your problem.

 

Hello

Many thanks for your reply.

It was the local garage that scanned for fault codes and said there were no codes. I will have to contact them.

In the meantime do you think it is worth buying the reader below to see if this will read the codes? It says it should do the job.

https://www.ebay.co.uk/itm/Jaguar-F...canner-tool/321731926500?ssPageName=STRK:MEBIDX:IT&_trksid=p2060353.m2749.l2649

Thanks again for your help I appreciate it.

David

 

Check the oil. 2006 car has got a DPF. Have a sniff at the dipstick and see it it smells of diesel fuel.

B loody DPF's are engine killers.

 

Will do, Thanks for your reply Victor I appreciated it.

 

I have just had a quick look at the code reader and I think that a standard code reader and will only show you the engine and gearbox codes.

One of these would be better as it can read every part of the car.

https://www.ebay.co.uk/itm/Icarsoft...9e33a44f&pid=100505&rk=1&rkt=1&&itm=232414542021&_trksid=p2045573.c100505.m3226

 

Thanks very much for your advice, I will take a look.

David

 

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It could be as simple as an air intake leak David.

Ducmon can assist you to make a DIY smoke machine and how to use it. Hope you smoke the odd cigar?

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So you know, the idea of most OBD (well, OBD II is the relevant kind) tools is to read codes relevant to OBD II (I know, sounds obvious) - and that's to do with emissions-related items.

RP (restricted perf) in many cases is not about emissions and that's why a much more capable tool can help.

Ideally our lawmakers would have widened the rules (a lot) to standardise all the other things and make them readily & cheaply available to car owners - but they haven't.

 

So you know, the idea of most OBD (well, OBD II is the relevant kind) tools is to read codes relevant to OBD II (I know, sounds obvious) - and that's to do with emissions-related items.

RP (restricted perf) in many cases is not about emissions and that's why a much more capable tool can help.

Ideally our lawmakers would have widened the rules (a lot) to standardise all the other things and make them readily & cheaply available to car owners - but they haven't.

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They didn't know that cars have more than one control module and the industry advisors obviously wouldn't want to enlighten them so they could keep some secrets!

 

That's false. E.g. OBD II requires extra modules such as a TCM to report emissions-related faults.

 

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So you're telling me simple politicians knew there are several control modules, not just a single "car computer wotsit", oh Pasha?

Hahaha, pull the other one it's got Christmas bells on it and a red ribbon.

Boy you've got your hooks into me for everything I say without reading my post!
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Don't be ridiculous. Politicians rarely write the actual law, they order those who know about such things to assist the people who do.

 

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EXACTLY!

So "False" is not the right starting word!

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Jim

Can I cordially suggest that you read this.

https://en.m.wikipedia.org/wiki/On-board_diagnostics

You will then see that it was introduced in California so that they could have an standard emissions control system. Technically it should be referred to as the Californian On-board diagnostics standard II. So that they could test every Car and lorry with a standardised system to ensure that they confirmed to the legal requirements.

Car manufacturers have taken this standard and enhanced it to allow them diagnose their products better when they have faults. As a car manufacturer write their own programs for the car to function and it would not be possible to write a standard program such as Windows that would work on every component in car.

Could you just imagine the problem of finding the correct driver for your door activators when there are thousands of different types.

 

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Thanks for your sleuthing again, ducmon.

I know some of this, bud, although not that it was the CARB which first enforced it, I thought it was a US-wide instigation from 1996.

This might help understand the difference between OBD and OBDII:
https://www.obdadvisor.com/difference-obd1-obd2-scanners/

In fact many (all?) manufacturers had already fitted diag systems into their cars, including Mercedes, Volvo and I now see VW was first, but they were proprietary.

These "public" diagnostic codes served not only for helping to fix and check emissions due to engine problems, but also had the side-effect of helping to break the dealers' stranglehold on repairs.

As I said, industry advisors, meaning manufacturers, would not have made much effort to expose more diagnostic details than necessary, but only met minimum requirements, and some only for the US market.

For instance, my 2002 Mercedes E320 does not have an OBD port but only the proprietary Mercedes round diagnostic connector, which was a complete surprise to me. They were only fitted from 2001 in petrol W210 models and from 2004 in the diesel W210.

But on the contrary my Japanese market 1999 Toyota Prado has the 16-pin OBDII port. I haven't checked my 1992 Toyota Camry.

Not only this, but different manufacturers still give different interpretations to the same OBDII code.

So they are not all playing ball even today.

Do our Jaguar codes have the same interpretation as Ford and GM for the same codes?

So I don't believe the industry advisors, meaning manufacturer reps advising the lawmakers, revealed all way back then when OBDII was defined.

And although we have grumbled about proprietary control modules being unreadable by common code scanner tools, it seems it's not been upgraded much since 1994?

See also that different manufacturers still use different protocols for their "standard" OBDII connections! :roll:

False, or false?

It's all False, I tell you!!

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I had the orange light come on a while back just after I bought the car, turned out that it was as simple as giving the battery a good charge

 

The S Type is sensitive to low volts, anything less than around 12.2 volts at the battery terminals makes the control modules operate unreliably and they generate random false errors.

So the battery is technically dead flat at 12.0 volts even though it can turn and start the engine.

A good calcium alloy battery will show 12.7+ volts when fully charged.

The 2.5-litre and post-2002.5 3.0-litre S Types can't fully charge them because they need 14.4 volts and these models only produce 13.6 volts after an initial 15.3 volts for the first 5-6 minutes. Early (1999-2002.5) 3.0-litre S Types produce 13.8 volts continually.

So these models only charge to around 75% to 80%.

The 4.2 -litre V8 and 2.7-litre diesel S types do fully support calcium batteries.

I don't have charging voltages for the 4.0-litre S Type if anyone who has one can help I'd appreciate it to close that subject please?

I would like to know the voltage at the battery terminals from engine start for 10 minutes please.

TIA!

 

But even OBDFacile doesn't give much more for Jaguar, does it bud?

Can you tell us what?

In fact it offers less than Torque until you buy a package blindly without knowing exactly what it does provide, so they don't promote themselves well.

The iCarSoft LR V2 is great for owners who plan to keep their Jaguars.

I'm waiting to test the Delphi dealer-level diags tool on our Merc, they say they cover Jaguars too and I'll report back.

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OBDfacile is a program for the elm 327 and it does give the Jaguar codes with their correct interpretation for the engine and gearbox. I have never used the the New icarsoft but I have got i930 which works very well on my old Jaguar and as I will not be buying a later model because I don't like the way they look. Although I do fancy a MK convertible they are out of my price league and they don't seem to have a manual gearbox.

I will not be bothering to buy the newer model of the icarsoft.

 

OBDfacile is a program for the elm 327 and it does give the Jaguar codes with their correct interpretation for the engine and gearbox. I have never used the the New icarsoft but I have got i930 which works very well on my old Jaguar and as I will not be buying a later model because I don't like the way they look. Although I do fancy a MK convertible they are out of my price league and they don't seem to have a manual gearbox.

I will not be bothering to buy the newer model of the icarsoft.

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Sure, the iCarSoft i930 is a great tool and does read all S Type modules, it's a purpose made scanner for JLR.

The iCarSoft LR V2 has superceded the i930, right?

I know OBDFacile is an app for smartphones and uses the ELM327 but since we're advising readers of this thread, still OBDFacile doesn't read all S Type modules, does it? I don't know, can you advise exactly?

TIA bud.

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Jim it is the definition that has to be correct first.

An OBD II compliant scan tool only had to read the engine and gearbox as it was a standard that was set up in California for emission control. It become useful for engine diagnostics because it able to identify parts that are not working correctly. I

When we are referring to a device such as icarsoft it is car manufacturer specific device which means that it does not just use the OBDII protocols, it also uses the manufacturers protocols and it is therefore able to read all of the modules.

When you buy a device that can read every manufacturers cars, they are normally sold on regional basis such as Europe, Asia and North America. To buy a device that can work on all cars normally costs a couple of thousand at least.

 

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Now you're teaching me to suck eggs.

That's not what I asked about, bud.

We're comparing Torque with OBDFacile, not the iCarSoft scanners or Delphi.

Torque Lite reads all public OBDII codes and also gave me a correct C1165 ABS code. I didn't have any Transmission fault codes to know for sure it can read those too, unless the ABS fault code is classed as a Transmission fault code in which case that answers my question?

So, I asked what does OBDFacile do with its Jaguar specific add-on, which you think Torque does not do?

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Many moons ago I contacted the writers of Torque and they told me the software will not read any codes except engine, which are basically public OBDII codes. How it caught your ABS code Jim I don't know and probably neither do the writers.

 

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Thanks Paul.

Yep there's a bit of confusion as to what are generic public codes and which are manufacturer specific.

Cxxxx codes are apparently Generic Chassis codes:
https://www.obd-codes.com/trouble_codes/obd-ii-c-chassis-codes.php

Maybe it was sensed only because it was a dead open-circuit sensor.

Nayways, the code it gave me was correct and helped me to determine the ABS sensor and changing it fixed the problem.

Another Mystery from the Shaguar Twilight Zone!

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