Nissan Micra Radio Antenna Trimmer Adjustment & Antenna Removal (EL-58)

This service manual page (EL-58) from the RADIO section covers two procedures: Antenna Trimmer Adjustment and Antenna Removal. The trimmer adjustment section explains that adjustment is needed when there is fading or weak MW (AM) reception, or after installing a new antenna, feeder cable, or radio receiver. Before adjusting, harness and antenna feeder cable connectors should be checked for proper connection. The four-step procedure requires fully extending the antenna, turning the radio on and increasing volume, tuning to the weakest barely-audible station around 14 (1,400 kHz) on the dial, and slowly turning the antenna trimmer left or right until reception is strongest. A caution warns not to turn the trimmer more than one-half turn. An illustration (SEL217B) shows the trimmer location on the radio unit. The Antenna Removal section instructs removing the antenna feeder cable from the radio and the ground cable, with an illustration (SEL015D) of a 3-door hatchback showing the antenna cable and antenna ground cable location at the rear quarter panel near a speaker. The page is consistent with a Nissan service manual electrical (EL) section for a hatchback such as the Micra.