2001 BMW 330ci Trunk Ajar Light ON – Convertible Top Doesn’t Open

2001 BMW 330ci Trunk Ajar Light ON – Convertible Top Doesn’t Open

The owner of the vehicle stated his trunk ajar light would not turn off and the convertible top would not open. The shop already installed a latch and told me they inspected the wiring harness.

Fault codes were stored in the CVM but none proved to be helpful.

I went directly to the latch and backprobed pin 2. My DVOM displayed 0 volts. I found the harness inside the trunk on the body side, backprobed the same wire and found 12 volts.

While monitoring the light on the dash indicating the trunk was open I toggled the wire to ground. The light went off. I then had the shop owner operate the top with this wire grounded and the top functioned.

I pulled the harness away from the trunk hinge and tugged on the wires. What did I find.. broken wires in the rubber conduit.

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