Question about 2005 Jaguar S-Type
HI. I find it strange that the certified dealer technician cannot pull the codes properly. This is very strange, your car is equipped with a very sophisticated Engine CPU. The trouble codes should be accessible with the correct diagnostic equipment, and procedures. I suspect some sort of sensor failure. Normally, when a vehicles CPU initiates the limp mode, this will indicate that one or more of the monitoring sensors have failed. The technician, if trained well, should be able to extract the actual codes that correspond to the fault easily.
If the tech cant pull the codes, this will indicate that either the diagnostic port has failed, or the technician is having issues with the diagnostic equipment. You do not want to start throwing parts at this issue. This could become very expensive. I would recommend to have the codes pulled. Once the codes are pulled, this will isolate the actual problem area. Possibly a failed cam, or crankshaft sensor, or faulty connection as well.
If the diagnostic scan tool dose not reveal a trouble code, this will indicate that the actual Engine control module is the culprit(faulty CPU)
Posted on Feb 01, 2010
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Posted on Jan 02, 2017
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