OBD Guide

B3602

Convertible Top Switch

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

Symptoms

  • Inability to open/close the roof
  • Spontaneous operation of the roof mechanism
  • Warning indication on the instrument panel
  • The roof mechanism operates intermittently

Causes

  • Faulty roof mechanism switch
  • Open/short circuit in wiring harness
  • Poor contact in connectors
  • Control relay problem
  • Control unit malfunction

How to Fix

  1. Check the condition of the roof mechanism switch
  2. Test the switch circuit with a multimeter
  3. Inspect the wiring harness for damage
  4. Check connections and connector contacts
  5. Test control relay
  6. If necessary, replace the switch or relay
  7. Reset the error and check the system operation

Related codes

Error B3602 by Vehicle Brand