Question about 1998 Jaguar XK8

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Failsafe engine mode light comes on, codes

Failsafe engine mode light comes on, codes p1111, p1643, p1000.

low engine coolant comes on and cruise control goes off when failsafe light comes on,

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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.

Hope this is of value...

Posted on Apr 22, 2009

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2004 xj vanden plas. Check engine light came on. Obd read as p0193 and p1111. Need help. Ty


p0193 sounds like a ip sensor circuit malfunction the p1111 is system check has been completed p1000 system check is not completed..that number will check from 1000 to 1111 when the car has ran a complete self check of itself.

Apr 05, 2014 | 2004 Jaguar XJ-Series

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2003 jaguar s type code p1000 and c1165


the p1000 is a system readiness code meaning the car is checking itself..it means its not finished etc but once it has the code will change to p1111..meaning system check completed, the c1165 is a abs or wheel speed code, check the wheel where this code is originating

Apr 03, 2014 | 2003 Jaguar S-Type

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Engine Failsafe Mode is activated


It may be if you ignore the light. Check the oil level and coolant levels first if ok have the fault codes read to determine the sensor that put the light on. Repair it and go from there.. Normally the ECM goes into safe mode to protect the engine and gear box from serious damage but it depends on the driver to react promptly to stop further damage occurring.

Mar 18, 2014 | Cars & Trucks

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P1111 Code


The P1111 unlike the P1000- the P1111 means the ECM has completed a drive cycle with no faults stored. The P1000 means the ECM has not yet completed the drive cycle. They are basicly drive cycle readiness codes doing a system check...this is a natural code..not to worry its checking the car all over between drive cycles for any malfunctions..
sorry i missed u online but the code is nothing to worry about...

Dec 09, 2011 | 2004 Jaguar X-Type

1 Answer

P1111 code


The P1111 unlike the P1000- the P1111 means the ECM has completed a drive cycle with no faults stored. The P1000 means the ECM has not yet completed the drive cycle. They are basicly drive cycle readiness codes doing a system check...this is a natural code..not to worry its checking the car all over between drive cycles for any malfunctions..

Dec 09, 2011 | Jaguar X-Type Cars & Trucks

1 Answer

What does the service code p1111 mean?


Copied directly from a Jaguar forum:

P1111 is not a fault code. It is a special designator Jaguar uses meaning system ready, drive cycles completed after the last fault event. P1000, on the other hand, means system not ready, or drive cycles not completed after the last recorded fault event.

Some OBD II Basics - All P0xxx codes are generic and uniform across all manufacturers and mean the same on every car. All P1xxx codes are manufacturer specific codes. You cannot use a generic code chart to analyze P1xxx codes for a Jaguar.

Next time your car displays an engine fault light, try reading the codes then. If you have a CEL illuminated and the only code read is P1000 or P1111, then you probably have a fault that generic code readers cannot see. Could be a chassis code, for example.

One last thing - Neither P1000, nor P1111 can be erased.

Hope this helps you.

May 20, 2011 | Jaguar X-Type Cars & Trucks

1 Answer

Running just fine and all of a sudden engine light shows and car goes into limp mode. Codes are P1000, P0128, and P1122


P0128 is coolant below threashold sounds like you may have a stiky thermostat. The computer is indicating a problem because the engines expected temperature is not being achived in the expected time.

P1122 Pedal Position Sensor A Circuit Low Input. Poss faulty or damaged sensor

P1000 is drive cycles not compleated. Please see http://ww.bluejag.co.uk for more information on drive cycles

Two odd ones and not directly related. Sorry can't really be anymore help than that.

Mar 31, 2011 | 2002 Jaguar X-Type

2 Answers

Fault code p1111+p1647 engin light is on


I have a 2002 X-type Jaguar and the check engine light and cruise control unavailable comes on but the cruise control light goes off once the car warms up. Any ideas?

Feb 14, 2010 | 2002 Jaguar X-Type

1 Answer

I have p1000 and c1175 codes


P0128 is a Coolant Thermostat Malfunction

P1000 shows that the fault code has been reset recently (but this code will not bring the warning light on)

C1175 I think is Speed Wheel Sensor LR Input Circuit Failure or Input circuit failure and could be directly related to your ABS fault light indication.

Jan 27, 2010 | 2003 Jaguar X-Type

1 Answer

My 97 xk8 had that stability problem. now it will not start,


code p1111 is system pass code p0333 is knock sensor 2 high input (bank 2) code p1643 is can link engine control module/transmission control modual circuit/ network also see if your car has a fuel pump shut off switch also other safety features on cars to protect against damage trans and oil fluid pressure also ckeck your neutral safety switch

Aug 13, 2009 | 1999 Jaguar XK8

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