AC–66 AIR CONDITIONING SYSTEM – TROUBLESHOOTING A C Control Assembly Circuit CIRCUIT DESCRIPTION This circuit includes the control switch circuit and the LED circuit in the A/C control Assembly. The A/C amplifier always searches which switch is operated and drives the LED according to A/C control operation or diagnostic sensor check operation. — WIRING DIAGRAM — A/C Control Assembly Terminals H13.5 H13.4 H13.3 H13.2 H13.1 H12.7 H12.5 H12.3 H12.2 H12.8 H12.B H12.4 H12.1 H13.3 H13.11 H13.9 H13.7 H12.20 H12.18 H12.16 H12.14 H12.12 H12.10 H13.14 H13.12 H13.10 H13.8 H12.18 H12.11 H12.15 H12.13 H12.11 H12.9 W-B BR-W L.B V-W P-B Y-B LR G-W R-W W-L LG-R R P-R B-W P LG B GR LG-B R-B G BR-W Y BR B-Y V COOL WARM OFF FAN1 FAN2 A/C REC FRE AUTO A/L NOSE DEF-OC DEF OAM SW6 SW5 SW4 SW3 SW2 SW1 SW8 SW7 L-ACE L-M1 LED L-M2 L-M3 RECL HEEL A/C Amplifier L-ROSE L-DEF L-OC L-DE1 L-OD2 B-L From HTR Fuse N08882 N08883