LOS ANGELES Japanese stocks fell in early Tuesday action, taking a cue from losses on Wall Street over weak U.S. manufacturing data and worries over the fiscal cliff. The Nikkei Stock Average lost 0.5% to trade at 9,406.87, while the Topix surrendered 0.4%. Auto-maker stocks were broadly lower after most reported drops in domestic sales but gains in U.S. sales. Toyota Motor Corp. slipped 0.3%, and Nissan Motor Co. dropped 1.6%. Mitsubishi Motors Corp. , which saw its November North American sales slip slightly, traded 2.6% lower, but shares of Honda Motor Co. rose 0.7% after posting its best U.S. sales ever. Tech exporters were mostly lower, with Hitachi Ltd. lower by 1.5%, and camera-maker Nikon Corp. falling 1.5%, while Advantest Corp. tumbled 3.4% after Credit Suisse cut its rating to underperform from outperform. Sharp Corp. rose 1.7%, however, after a Nikkei news report that it plans to join Qualcomm Inc. to develop an energy-efficient LCD smartphone panel.