Changing engine ecu
#1
Changing engine ecu
Ok this is for you hi tec guys and know this has been covered a lot but i.m stuck after fitting second hand engine ECU did not keep block code from old one . So cannot get correct chassis number into it . Only way I can see is give it too Jag dealer which out my price range or ECU reprogramming specialist .anyone think of another way ?
#2
Join Date: Jan 2012
Location: Newport Beach, California
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#3
I can’t remember if this applies to early or late models, or all of them. I’ll look for this info if you can please let us know what year you have.
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Brutal (07-12-2019)
#4
Found it. It appears this limitation only applies to ‘99-‘02 models. Details here:
https://www.jaguarforums.com/forum/s...eplace-214246/
https://www.jaguarforums.com/forum/s...eplace-214246/
#5
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#7
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#8
Huh, well I'll be. Glad to hear it's possible. Guess I shouldn't believe everything I read, even official factory documentation. Maybe that training guide was pre-production and this feature was revised? Heck if I know...
#9
The fault I had was no comuation with engine ECU and it's was running very rough not knowing too save block code I tryed too reprogram it and ended up with no start and lost chassis number . Got hold of a second hand one and and was able too reset imobleiser and it's started but running same and still no comuation but now can not get correct chassis number even when follow how too do it
#10
the ids software has the raw program for your PCM to match your chassis/vin with in .
you really need to identify the communications fault . wether it be SCP or CAN network failure and fix this first .
being an 03 car it could be ether side of the facelift model . and this will determine if it has CAN BUS or not .
often a failed module in the circuit can point to the next module in the chain as the culprit . there are module pin out diagrams in JTIS within IDS/SDD
to test the wires . you can ether check the wires for continuity with all modules disconnected . or back probe the wires whilst powered (all modules connected)
with an oscilloscope to monitor module wave length activity for failure . and you can also test the voltages CANH AND CANL (high and low) at various modules and OBD2port to check for any issues with the transceivers, if CAN is applicable here ?
you really need to identify the communications fault . wether it be SCP or CAN network failure and fix this first .
being an 03 car it could be ether side of the facelift model . and this will determine if it has CAN BUS or not .
often a failed module in the circuit can point to the next module in the chain as the culprit . there are module pin out diagrams in JTIS within IDS/SDD
to test the wires . you can ether check the wires for continuity with all modules disconnected . or back probe the wires whilst powered (all modules connected)
with an oscilloscope to monitor module wave length activity for failure . and you can also test the voltages CANH AND CANL (high and low) at various modules and OBD2port to check for any issues with the transceivers, if CAN is applicable here ?
#11
#12
Hi, kindly expound. I have bought like three replacement modules off ebay, but each I have bought upon installation onto the car does not communicate, SDD sees it as an 'X', hence I cannot get to program it onto the car. Tried ractification procedure begining with the TCM which SDD sees as a '?', with failed to communicate, and (Four fault codes logged message) then gone onto the the PCM, failed to get them to be seen by SDD.
Upon turning on the ignition, the immo lights stays solid for close to 5 minutes, then starts to blink .At my wits end.
Upon turning on the ignition, the immo lights stays solid for close to 5 minutes, then starts to blink .At my wits end.
#14
#15
Upon turning on the ignition, the immo lights stays solid for close to 5 minutes, then starts to blink .At my wits end.
#16
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