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AIR CONDITIONING 1B–93 Check of Auto Amplifier (Automatic air conditioner control unit) Power Supply System • This check is required because a trouble on the auto amplifier (control unit) power supply circuit or grounding circuit prevents accurate troubleshooting. Check of auto amplifier power supply circuit and grounding circuit. Chart A B-18 FL-1 Main 0.5G/R 16 10 7 8 I-32 I-32 C-16 10A 0.3R/W 0.5BR Backup Power supply (12V) Unit ground Automatic heater/air conditioner control unit B-18 B-36 H-14 C-20 10A A/C Relay: 0.5B 1.25B 2B Lighting switch Lighting switch H-14 1 H-26 9 H-26 14 H-27 20 H-16 14 2 1 4 3 B-36 1 2 3 4 H-16 H-26 H-27 I-32 1 2 1 2 10 9 8 7 6 5 4 3 2 1 2221201918 1514131211 17 16 1 2 3 4 5 1112131415 6 7 8 9 10 1819202122 16 17 10 11 12 13 14 15 1 2 3 4 5 17 18 19 20 6 7 8 9 16 9 8 7 6 20 19 18 17 16 5 14 15 4 13 3 12 2 11 1 10 20 12 19 11 18 10 17 9 16 8 15 7 14 6 13 5 1 2 3 4 4 3 2 1 12 11 10 9 8 7 6 5 13 14 15 16 17 18 19 20 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 D08RY00175 |