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2015 VOLKSWAGEN E-GOLF
Electric•FWD•AUTOMATIC•ev•EAGA
3 active safety recalls on this vehicle — view recalls
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Repairs0Labor321Torque2132Fluid5DTC785Battery1Maintenance0Recalls3
B0104high severityBody

Immobilizer Control Module Communication

on 2015 Volkswagen e-Golf Electric · FWD

What this code means

The immobilizer control module is not communicating with the ECM/PCM. Both modules must agree before engine starting is allowed.

Symptoms

  • Engine will not start
  • Security light on
  • No communication with immobilizer module
  • Multiple no-start codes

Common causes

  • Immobilizer module failure
  • CAN bus wiring issue between modules
  • ECM/PCM fault
  • Power or ground issue to immobilizer module

Diagnostic steps

  1. Check CAN bus communication
  2. Test immobilizer module power and ground
  3. Scan both immobilizer and ECM for codes
  4. Check wiring between modules
  5. Try key relearn procedure

Repair notes

Repair CAN bus wiring or replace immobilizer control module. Modules may need to be paired.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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