On 16 April, "S-32" set a course for Dutch Harbor. On 20 April, she arrived and commenced refit. On 4 May, she again sailed west. En route to the Kurils, she patrolled across possible Japanese reinforcement routes to Kiska and Attu, but almost zero visibility during the passage hindered hunting. On 12 May, she entered her assigned area off Paramushiro. The next day, she obtained her first fix, off Onekotan, and commenced patrolling across the approaches to Onekotan Strait and Musashi Wan. Visibility remained poor; seas were rough. Her radar, which had gone out of commission on 11 May, functioned improperly throughout her short time on station. On 15 May, the port main motor armature developed a zero resistance to ground. Repeated repair attempts failed, and the motor was secured. "S-32" turned back toward Unalaska and moored at Dutch Harbor on 23 May.