Test Point 18

Fault Code 18
Power window control Ground short.

1. Pull off Plug I on the alarm control unit.
2. Pull off Plug I on the convertible top control unit.
3. Ohmmeter at Plug I alarm control unit pin 18 and ground.
Display: infinity Ohms

If display < 5 Ohms,check the wiring harness for pinches and chafing damage.