OBD Guide

B2481

Convertible Top Up/Down Switch Fault

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Convertible roof does not respond to commands
  • Intermittent operation of the roof mechanism
  • The malfunction indicator on the dashboard lights up

Causes

  • Folding roof switch malfunction
  • Open or short circuit in wiring harness
  • Oxidation of switch contacts
  • Problems with the roof control unit

How to Fix

  1. Check the switch for mechanical damage
  2. Check the integrity of the wiring harness and contacts
  3. Clean switch contacts from oxidation
  4. Test the roof control unit
  5. Replace switch or wiring harness if necessary

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