商业 · 1996/9/231 分钟阅读
Federal Motor Vehicle Safety Standards; Stability and Control of Medium and Heavy Vehicles During Braking
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摘要
This document amends Standard No. 121, Air Brake Systems, to specify the location, labeling, color, activation protocol, and photometric intensity of antilock brake system (ABS) malfunction indicator lamps on the exterior of trailers and trailer converter dollies. The purpose of the malfunction indicator lamp is to inform drivers, and maintenance and inspection personnel, of malfunctions in a trailer's ABS.