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DTC 11

BME090267000W15

DTC 11 | Coil or wiring harness between immobilizer unit and coil is open circuit.
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POSSIBLE CAUSE | • Open circuit in coil • Poor connection of coil connector • Poor connection of immobilizer unit • Defective wiring harness between immobilizer unit and coil

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | INSPECT CONNECTOR CONNECTION • Is connector of coil or immobilizer unit connected securely? | Yes | Go to next step.
No | Connect connector securely.
2 | INSPECT COIL CIRCUIT FOR CONTINUITY • Is there continuity between coil terminals A and C? | Yes | Go to next step.
No | Replace coil.
3 | INSPECT COIL CIRCUIT FOR OPEN • Disconnect coil connector and immobilizer unit connector. • Inspect if either of the following wiring harnesses has continuity:

  - Immobilizer unit D to coil C, and immobilizer unit F to coil A
  - Immobilizer unit D to coil A, and immobilizer unit F to coil C

  Note

  • Vehicle harness which is connected to immobilizer unit terminals D and F, uses a twisted pair wire. Because twisted pair wire does not have polarity, immobilizer unit connector terminal D may be connected to coil connector terminal A or C. Likewise, immobilizer unit connector terminal F may be connected to coil connector terminal A or C.

Yes
Replace immobilizer unit and reprogram immobilizer system.
(See Immobilizer Unit Replacement.)
No | Repair wiring harness between coil and immobilizer unit.