Service Action: Wiring Harness Sensor Rear Module. The wiring harness for the sensor of the rear convertible top module can be routed incorrectly, which can cause damage to the wiring harness. Incorrect routing of the wiring harness AFFECTED VEHICLES This Service Action involves F33 (3 Series Convertibles) produced from February 12, 2014 to March 17, 2014. First check if a Service Action label with a code number 681 is already attached to the B-pillar. If a code number 681 has been punched out, the Campaign has already been performed and no further action is necessary. Vehicles which require this Service Action to be completed will show it as "Open" when checked either in the "Service Menu" of DCSnet (Dealer Communication System) or with the Key Reader.
