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BMW · DTC LOOKUP

BMW DDE immobilizer fault — BMW diesel DDE immobilizer authentication failure

BMW diagnostic code. Below: what it means, common causes, symptoms, and the exact bench-programming fix path.

Common causes

  • •EWS/CAS module failure
  • •DDE-EWS pairing data corrupted
  • •Donor DDE installed
  • •Component protection (CAS+)

Symptoms you'll see

  • •Diesel won't start
  • •EWS warning
  • •Glow plugs cycle but no fuel injection

The fix path

Same fix path as BMW gas: EWS Delete for pre-CAS chassis (cheapest), CAS Key Programming for 2006-2012, FEM/BDC for 2013+. Diesel-specific DDE doesn't change the bench programming approach.

AML services that fix this

Mail in the affected module, we bench-program, ship back next business day. Flat pricing, return shipping included.

BMW CAS Module Key Programming (2006-2012)

$150

Ship your BMW CAS module — we program a new working key. Covers CAS2, CAS3, CAS3+, CAS4.

Service details

BMW FEM/BDC Key Programming

$150

Ship your BMW FEM/BDC module AND DME — we program a new working key.

Service details

BMW DME EWS Delete (MS41/42/43/45, MSS50-70)

$150

Plug-and-play EWS delete for BMW M52/M54/S54/S62/S65 DMEs. Ship your DME, get it back IMMO-off and ready to start.

Service details

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Related diagnostic codes

P1570Engine Start Blocked by ImmobilizerP0513Incorrect Immobilizer KeyFRM/FRM3 not detectedBMW FRM/FRM3 Footwell Module unresponsiveEWS-DME comm errorEWS module not authenticating with DMECAS-DME comm errorCAS module unable to authorize startBMW E46 cluster pixel lossBMW E38/E39/E46 instrument cluster pixel dropouts

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