Convertible top issue

Tiny
BHAMDOC1
  • MEMBER
  • 2005 BMW Z4
  • 2.5L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 145,000 MILES
Had issues with windows, blinkers and other electronics not working, disconnected the air bag module and all came back except the top. Not sure if the top even works, but when pressing the button the light should flash or come on, red or orange, but noting is lighting up. Checked fuses 12, 31, and 55 and they are good, I see 2 purple relays and I assume they are for the top, swapped them around still nothing, how to check for power on back of the panel, I see one large harness and a smaller one, panel has buttons for TPMS, DTC, heated seats, all work and light up
Wednesday, April 15th, 2026 AT 7:30 AM

1 Reply

Tiny
BHAMDOC1
  • MEMBER
  • 237 POSTS
Latch moror up front I removed the cover abd with ignition on both wires show ground.
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Wednesday, April 15th, 2026 AT 8:30 AM

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