List of Abbreviations 00.01 List of Abbreviations SPN . . . . . . . suspect parameter number VIW . . . . . . . . vehicle interface wiring (connector) sq in . . . . . . square inches SRP . . . . . . . seating reference point VOC . . . . . . . volatile organic compounds SRS . . . . . . . supplemental restraint system SRS . . . . . . . synchronous reference sensor VOM . . . . . . . volt-ohmmeter VRS . . . . . . . variable resistance sensor SRT . . . . . . . standard repair time VSG . . . . . . . variable speed governor VSS . . . . . . . vehicle speed sensor SSD . . . . . . . side sensor display VSU . . . . . . . vehicle security unit SSID . . . . . . . smart switch identification SST . . . . . .
. stainless steel WB . . . . . . . . wire braid WI . . . . . . . . . work instructions std. . . . . . . . . standard S/W . . . . . . . . software WIF . . . . . . . . water-in-fuel WOT . . . . . . . wide open throttle SW . . . . . . . . switch TAM . . . . . . . thermocouple amplifier module TBB . . . . . . . Thomas Built Buses TBS . . . . . . . turbo boost sensor TCM . . . . . . . transmission control module TCU . . . . . . . transmission control unit TDC . . . . . . . top dead center TDR . . . . . . . technician diagnostic routine TEM . . . . . . . truck equipment manufacturer temp . . . . . . temperature TIG . . . . . . . . tungsten inert gas TIR . . . . . . . .
total indicator reading TPMS . . . . . . tire pressure monitoring system TPS . . . . . . . thermal protection switch TPS . . . . . . . throttle position sensor TRS . . . . . . . timing reference sensor TSO . . . . . . . truck specification order TSU . . . . . . . transmission shift unit U.D. . . . . . . . underdrive ULSD . . . . . . ultralow-sulfur diesel . . . . . . . . . . . minus or negative + . . . . . . . . . . . plus or positive ± . . . . . . . . . . . plus-or-minus > . . . . . . . . . . . greater than less than x . . . . . . . . . . . by (used in fastener size descriptions) " . . . . . . . . . . . inches ° . . . . . . . . . . . degrees (of an angle) °C . . . . . . . . .
degrees Celsius (centigrade) °F . . . . . . . . . . degrees Fahrenheit # . . . . . . . . . . . number % . . . . . . . . . . percent & . . . . . . . . . . and © . . . . . . . . . . copyright . . . . . . . . . . trademark ® . . . . . . . . . . . registered trademark UNC . . . . . . . unified national coarse UNF . . . . . . . unified national fine U.S. . . . . . . . United States U.S.A. . . . . . United States of America USC . . . . . . . United States customary (measures) V . . . . . . . . . . volts VCU . . . . . . . vehicle control unit VDC . . . . . . . vehicle data computer Vdc . . . . . . . . volts, direct current VIMS . . . . . . vehicle information management system VIN . . . . . . . .
vehicle identification number VIP . . . . . . . . vehicle instrumentation and protection (Kysor) Business Class M2 Workshop Manual, Supplement 21, March 2012 050/4