Service Information Guide (All models) 14A-11 Abbreviation Description A/D Analog/Digital ABDC After bottom dead center AC Alternating current ACC Accessory ACG Alternating current generator ACT Actuator API American Petroleum Industry ASM Assembly ATDC After top dead center ATF Automatic transmission fluid B+ Battery + terminal BAT Battery BBDC Before bottom dead center BKT Bracket BRG Bearing BTDC Before the top dead center C/B Circuit breaker C/U Control unit CAN A control unit communication method (Control area network) CKP Crankshaft position CMP Camshaft position CO Carbon monoxide CPU CPU (Central processing unit) DC Direct current DI Direct injection type DLC Data link connector DPD Diesel particulate diffuser DTC Self-diagnosis code DMM Digital multi–meter ECM Engine control module ECT Engine coolant temperature ECU Electronic control unit EEPROM Electrically erasable/programmable ROM EGR EGR (Exhaust gas recirculation) EMI Electromagnetic interference EVRV Electric vacuum regulating valve EXH Exhaust F/B Feedback F/C Fuel cut F/L Fusible link FLW Fusible link wire FRT Front FT Fuel temperature FWD Front