4 1 FE a Ia IQ I I I 6 E I Vc Low l I yh i nl D 4 b 2 Q I I g g I g 2 TYPICAL V AUTOMATIC TEMPERATURE CONTROL WITH VENT POSITION KEY GROUP I DESCRIPTION A I 9 273 CONTROL Auto A C Tnmp Com t l 2 9 281 CONTACTS Salocwr Cam Control 3 9 273 LENS PACKAGE Incl Lan Knobs Ratainers 4 9 276 CIRCIJIT BOARD Control Incl Wiring 5 8 852 KNOB Selecr 6 9 275 THUMB WHEEL Q POTENTIOMETER Auto Temp Control 7 9 278 LEVE R Select 8 8 852 RETAINER Control Levnr 9 9 280 VALVE Select 9 Pon 10 M PLATE Control Bm hn I Il LINKAGE TEMPERATURE CONTROL SENSORS IINOT SHOWN 9 786 LINKAGE Tnmp Door Conn Programmer 9 786 LINKAGE Temp Door Conn Programmer 9 276 SENSOR Incnr T mp Control 9 276 SENSOR lncar Tnmp Control 9 276 SENSOR lr AMBIENT SWITCH 9 276 SENSOR AMEIENT SWITCH NOTIE REFER TO CATALOG PARTS LISTINGS GRP 9 169 AUTOMATIC AIR CONDITIONING I TEMPERATURE CONTROL 1974 A B C E B9 1 48 GM PARTS DIVISION GENERAL MOTORS CORPORAT ON BU CK 40A 9 53 9 000 G ROU P