An open or a short in the power supply circuit to the fuse F7

Repair or replace the wiring harness.

Fuse F7 is blown

Replace the fuse F7.

The circuit between the fuse F7 and the terminal 2 of the cigar lighter connector is the open circuit or a short circuit

Repair or replace the wiring harness.

The cigar lighter connector is faulty

Repair or replace the cigar lighter connector.

The cigar lighter element is blown

Replace the cigar lighter.

An open ground (G201) circuit

Repair the open ground circuit.