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2020 PORSCHE TAYCAN
Electric•AWD•AUTOMATIC•ev
12 active safety recalls on this vehicle — view recalls
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Repairs0Labor322Torque1429Fluid5DTC742Battery1Maintenance0Recalls12
U0253critical severityNetwork

Lost Communication with Collision Avoidance Module

on 2020 Porsche Taycan Electric · AWD

What this code means

Cannot communicate with the pre-collision or collision mitigation control module.

Symptoms

  • Pre-collision warning disabled
  • Automatic emergency braking off
  • Collision avoidance system fault
  • Safety system warning light

Common causes

  • Collision avoidance module failure
  • CAN bus wiring
  • Module power loss
  • Fuse blown
  • Sensor obstruction
  • Calibration needed

Diagnostic steps

  1. Check module fuse
  2. Test power and ground
  3. Check CAN wiring
  4. Clean all sensors
  5. Check for sensor calibration need
  6. Inspect front fascia for damage

Repair notes

Safety critical ADAS system. Check fuses and sensor condition. Requires professional calibration after service.

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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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