Question about 2002 Jaguar S-Type

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My jaguar started flashing the message "failsafe engine mode"

Can anybody help, i have S Type jaguar which came for the first time "FAILSAFE ENGINE MODE" yesterday on the way back from a trip to London,the temperature on the engine was normal it was driving fine and everything seemed in normal working order.there was also an amber light flashing to the left of the message so if anyone can shed some light on this problem i would be very grateful.

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Go to your local garage (anyone) and have them read the OBDII code this will tell you what has caused the problem, cost for this should be minimal £7-10 ask them for all the reported codes you can check them out at http://www.bluejag.co.uk if you wish to find out what they mean.

Posted on Apr 05, 2010

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Amber light with the massage indicating Failsafe engine Mode could you please tell me what that means


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Hello! Fail safe mode is when the vehicle's computer detects a serious problem an allows you to "limp" off the road or highway safely.

Fail safe mode on a Jaguar is mainly caused by a dirty and gummed up throttle body. The throttle body on your auto has a protective coating, so you can not use just any cleaner. It requires a throttle body cleaner that states "safe to use with a protective coating". The butterfly valve in the throttle body will actually "stick out". This causes fail safe mode to kick in reducing the amount of power your engine can produce.

Also check the plugs on your ECM (computer) and make sure they are all seated properly.


Guru...............saailer


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Dec 13, 2009 | 1998 Jaguar XJ8L

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My 2000 Jag S type also keeps saying failsafe mode?


fail safe mode is something the vehicle computor will go into when there is a problem with the vehicle it allows u to get off the highway or road safely you need to take vehicle to repair shop or your dealer which ever u prefer Failsafe engine mode on a 2000 jaguar s type is caused by a stopped up throttle body. Jaguar says not to clean the throttle body since it has a protective coating to help keep deposits from accumulating. You can clean the throttle body as long as you use ONLY throttle body cleaner that states it is safe to use with a protective coating. The butterfly valve in the throttle body will actually stick not allowing air to flow into the manifold causing failsafe engine mode to kick in reducing the amount of power your engine will produce. To solve the issue just clean out your throttle body, it will cost you around $5 dollars and take 1 hour of your time.

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Who every told you this is right if you want it done right. If you want to to it your self I can give you step by step to get it done.

May 25, 2009 | 2000 Jaguar S-Type

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My jaguar s type has a new message- failsafe engine mode. when it was amber the car was ok but now that its red i have to limp home. how serious is this please. benn quoted a LOT of money at a jaguar main...


Sorry late reply - just seen this problem. The amber warning is basically saying a problem developing. The red and limp home action is showing more serious developement - But not always very bad news. Had car with same symptoms and it was a faulty sensor on engine, and another similar case was throtle position sensor. Get the car to a garage that can read the faults - so you know what the problem is that has been registered in the memory.
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Mar 30, 2009 | 2000 Jaguar S-Type

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Failsafe engine mode


The failsafe mode can appear following numerous faults being detected - some faults can be momentary and register but not cause a problem. These are normally reset by just turning ignition off/on. get the fault code memory read at a garage and this may give you a clue as to a possible problem developing. Failsafe mode will give you reduced engine performance but will allow you to drive for normally some distance. If a serious problem developes your car message centre will tell you to shut off the engine or it will shut it down.
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Failsafe engine mode light comes on, codes


Just a quick mention - for about a month my XK8 low coolant light came on intermittently. This week with no notice while driving normally I got Stability Control Fail and FailSafe Engine Mode and wtih great difficulty got the car back to where I started from (less than a mile). Two days later (when got time) and after a bit of research, I tried it again - same problem and a very unhappy engine. I then disconnected the battery for 15 minutes (probably more) to clear the engine codes as well as check all the wiring and vacuum stuff I could under the hood (at a Jaguar master mechanic's recommendation). No problems found but the car would start and immediately stall with the air intake hose disconnected from the intake butterfly. After I reconnected the air intake hose, she started and purred like normal. The problem is the BATTERY... It is low - I've known it for a LONG time BUT it always started right up and never skipped a beat. I intend to replace it tonight but fully expect that's the issue. I've had the car 6 years (it's a 98) and had NO problems except a dead taillight asembly.

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Mar 07, 2009 | 1998 Jaguar XK8

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