livefastdriveyoung
Member
Registered: 18th May 03
Location: Near Hartlepool Drives: 2004 BMW 320dse
User status: Offline
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I have found the solution to my previous problem http://www.corsasport.co.uk/board/viewthread.php?tid=416386 however it has lead to another!!
The problem was there is a bracket on left side of engine with 2 earth wires from the ECU attatched, this bracket had become loose, so the car had a bad earth.
The original problem went away, but now the car wont start at all, it is juts cranking over with no attempt to fire, and the spanner light is just constantly flashing all the time.
Dignostic is saying something about transponder fault, but how can this have happened just by tightening a bracket???? and aslo how can I fix it??
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livefastdriveyoung
Member
Registered: 18th May 03
Location: Near Hartlepool Drives: 2004 BMW 320dse
User status: Offline
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bump
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
User status: Offline
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flashing service light + transponder fault code = immobiliser problem.
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livefastdriveyoung
Member
Registered: 18th May 03
Location: Near Hartlepool Drives: 2004 BMW 320dse
User status: Offline
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quote:
Originally posted by Dave A
flashing service light + transponder fault code = immobiliser problem.
I pretty much gathered that m8, just wondered whats the problem and how to possibly fix it???
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
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check the transponder is plugged in properly and that the chip is in the key.
try a spare key if you have one and check all of your fuses are ok.
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livefastdriveyoung
Member
Registered: 18th May 03
Location: Near Hartlepool Drives: 2004 BMW 320dse
User status: Offline
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dont have a spare key 
im sure diagnostic said it wasnt picking up signal from chip. Could it just need reprogramming???? how could it just all of a sudden loose the program though??? could it possibly have screwed the ECU when the earth was shorting????
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Dave A
USER UNDER INVESTIGATION - DO NOT TRADE
Registered: 10th Dec 03
Location: County Durham
User status: Offline
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I had this once on a vectra and couldnt get to the bottom of the problem.
we disconnected the battery as we were changing it anyway for the customer and when we reconnected the new one a few hours later problem had gone.
disconnecting the battery overnight is worth a try, its amazing how often it sorts out problems on a wide variety of vehicles.
If that doesnt solve it disconnect the ecu and transponder plugs, check them over and re-connect. could be as simple as a loose connection. also check those earths that were loose again.
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livefastdriveyoung
Member
Registered: 18th May 03
Location: Near Hartlepool Drives: 2004 BMW 320dse
User status: Offline
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i think auto elec said he was takign off battery over night to charge as we'd ran it low, so might be ok in morn, fingers crossed
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tucky911
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Registered: 5th Mar 08
Location: Nantwich, Cheshire
User status: Offline
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any news on the battery?
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livefastdriveyoung
Member
Registered: 18th May 03
Location: Near Hartlepool Drives: 2004 BMW 320dse
User status: Offline
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quote:
Originally posted by tucky911
any news on the battery?
not yet mate, just waiting for VX to ring to say my car pass is in (so I can get security code for immobiliser) and then Ill be going down auto elec's. Ill keep you all posted.
Someone has mentioned that ECU has possibly been spiked from lose connection, Im praying this hasnt happened
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livefastdriveyoung
Member
Registered: 18th May 03
Location: Near Hartlepool Drives: 2004 BMW 320dse
User status: Offline
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Battery made absolutely no difrence. still waiting for car pass from VX so havent been able to check key is sync'd yet.
Diagnostic is saying its not finding the body control module???
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livefastdriveyoung
Member
Registered: 18th May 03
Location: Near Hartlepool Drives: 2004 BMW 320dse
User status: Offline
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got car pass, still no joy, have now towed it to main dealers but they notgonna be able to look t it till tues
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livefastdriveyoung
Member
Registered: 18th May 03
Location: Near Hartlepool Drives: 2004 BMW 320dse
User status: Offline
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ttt
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livefastdriveyoung
Member
Registered: 18th May 03
Location: Near Hartlepool Drives: 2004 BMW 320dse
User status: Offline
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Came back from dealers today, still no joy, they havent a clue whats wrong, they have reset the BCM, tried a new BCM, Tried a new ECU, all with no joy. They now think it may be a loose or broken wire somewhere
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