New fault code?!?!?.....

[Richierich37]

Eml came on so plugged in my code scanner......... 17978???
That code isn't in the wee handbook that came with scanner?!?!?
Anyone help please, thanks

[limoncello]

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. (Example)
Low battery voltage (including a faulty battery) may cause Immobilizer system malfunctions and testing should be done only with a known good battery installed.

[Richierich37]

That's great thanks! The car has started no problem after sitting on the drive for weeks unused! Ill clear the code and use the car and see if it comes back! Thanks again

[Richierich37]

Hey guys, just went out to A8 and when I turned the key the yellow warning light with a key and outline of car started to flash and car didn't fire up first time, it did fire up second time! Is this the start of something bad? What do you suggest? TIA

[PsYcHe]

Could be the immobiliser wire starting to go... Fairly common issue.

[Richierich37]

Originally Posted by PsYcHe

Could be the immobiliser wire starting to go... Fairly common issue.

As in corrode away??? Any ideas where to look?

Thanks

[PsYcHe]

It's in the steering wheel shroud, a black wire from memory.. It's the movement of the column back and forward that weakens it.

[Dezzy]

Originally Posted by Richierich37

Hey guys, just went out to A8 and when I turned the key the yellow warning light with a key and outline of car started to flash and car didn't fire up first time, it did fire up second time! Is this the start of something bad? What do you suggest? TIA

Mine has been like it for years now, sometimes it's bad and others it's fine for ages.

[RanjS8]

I had this problem....it isn't too difficult to do....have a look at repair sticky on immobiliser wire.

[Richierich37]

Thanks guys