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2005 AUDI A4
3.0L V6•AWD•AUTOMATIC•gas•AVK
4 active safety recalls on this vehicle — view recalls
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Repairs0Labor505Torque4353Fluid9DTC1029Battery1Maintenance0Recalls4
U0162moderate severityNetwork

Lost Communication with Convertible Roof Module

on 2005 Audi A4 3.0L V6 · AWD

What this code means

Cannot communicate with the convertible top or retractable hardtop control module.

Symptoms

  • Convertible top not operating
  • Top stuck partially open
  • Top warning light on
  • Top controls unresponsive

Common causes

  • Top module failure
  • CAN bus wiring
  • Module power loss
  • Fuse blown
  • Hydraulic pump failure
  • Trunk latch sensor issue

Diagnostic steps

  1. Check top module fuse
  2. Test power and ground
  3. Check CAN wiring
  4. Test top hydraulic system
  5. Check trunk and boot sensors

Repair notes

Check fuses and trunk latch sensors. Top operation requires all latches and sensors to confirm position.

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