Starts and then cuts out

[Dave1981]

Hi all this is my first post on this forum I've got an Audi a8 4.2 d2 99 reg I've got a problem with it,when I start It up it runs for 2 seconds and then cuts out the key light on the dash flashes ive had it on the computer and got this.



Engine: 2 Faults Found:
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18010 - Power Supply Terminal 30
***** P1602 - 35-10 - Voltage too Low - Intermittent* (Possibly)
17978 - Engine Start Blocked by Immobilizer
***** P1570 - 35-00 -************************************ (More probably)
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Repair Info: - (ONE)
17978/P1570/005488 - Engine Start Blocked by Immobilizer
Possible Symptoms
**************** Engine starting but stalling immediately
Possible Causes
************ Key(s) not matched
************ Instrument Cluster not matched
************ Engine Control Unit (ECU) not matched
************ Engine Control Unit (ECU) Power Supply faulty
Possible Solutions
************ Check for Fault Codes in Immobilizer itself (part of Instrument Cluster in many cars, but separate Immobilizer Control Module in some)
************ Check Immobilizer Measuring Values (usually in Instrument Cluster OR Immobilizer Control Module)
************ Match Key(s)/Instrument Cluster/Engine Control Unit (ECU)
************ Check Engine Control Unit (ECU) Power Supply (Relay)
Special Notes
************ In case of Engine Starting Issues please make sure that you are really experience an Immobilizer related Problem! Even if the Immobilizer engages, the Engine will still start fine but cut out after 2-3 Seconds. If you are NOT experiencing this behavior (e.g. Engine doesn't start at all) your Problem is very likely NOT Immobilizer related.
************ May be stored in Combination with 01176 - Key: Signal too Low in Immobilizer Control Module.
************ If no other immobilizer related fault codes are stored and the immobilizer related meas. blocks are fine except Engine Start not allowed, in rare occasions it helps to try cold-booting the car. Remove both battery cables from the battery. Short the battery cables together (away from the battery) for about 15 seconds. Reconnect the battery
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Repair Info: - (TWO)
01176 - Key: Signal too Low Possible Symptoms
************ Malfunction Indicator Light (KEY) ON
Possible Causes
************ Immobilizer
****************** Wiring and/or Connector(s) from/to Immobilizer Reader Coil faulty
****************** Immobilizer Reader Coil faulty
****************** Immobilizer Transponder in Key faulty OR incorrect Transponder in Key
************ Remote Control
****************** Remote Control Battery low
****************** Remote Control faulty OR incorrect Remote Control used
Possible Solutions
************ Immobilizer
****************** Check Wiring and/or Connector(s) from/to Immobilizer Reader Coil
****************** Check Key Immobilizer Transponder Status
************************* See Measuring Value Blocks (MVB)
****************** Check/Renew Immobilizer Key Matching
****************** Check/Replace Key
************ Remote Control
****************** Check/Replace Remote Control Battery
****************** Check/Replace Remote Control

If anyone has had this problem and knows the fix I would be very greatful.
Cheers Dave
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[Dezzy]

Common fault mine does it too. Take the key out and move the wheel in or out and try again. It's a wire is all Graynada has done this repair.

Originally Posted by graynada

I did the imobilliser fix on mine this weekend, after 2 years of living with it! Cost me £20 + some pence for the wire from TPS and about 1 hours time. Can't tell how nice it feels getting in the car and it starting first time every time and without that nagging thought could this be the time it just won't start :-)

Also what are you using to scan the car?

[Dave1981]

Hi I've tryed moving it in and out it hasn't turned a wheel for 2 weeks,I just want to drive it.
What wire is it.
Cheers Dave

[Dave1981]

I used vagcom

[ainarssems]

http://www.audipages.com/Tech_Articl...rereplace.html

[Conan_the_Librarian]

Try the link in D2 - D2 Interior electrics - Maintainence to audi pages

[Dave1981]

Hi that's a very good site I will get on doing that hopefully tomorrow.
Thanks for the help
Cheers Dave

[Curtis]

mine used to do the same thing,replaced the wire from igintion to immobilser and works 100% now.simple wire and and lot of stripping but well worth it.i found that cleaning the key and turning the igintion on then moving it around inside the lock before starting helped but wait for the key light to go off before starting it.

[Dave1981]

I've ordered it from Maidstone Audi it won't be in until Saturday so hopefully it will be done thanks for the help.
Cheers Dave

[Curtis]

cool,you going to need to have the airbag light removed the computer afterwards.u have to disconnect the airbag to get the covers off so the light will come up on the dash for the airbag. still need to sort that out on mine