A/C Heater Control (Automatic Temperature Control) Connector End View
CONTROL-A/C-HEATER - 16 WAY (ATC)
| CAV | CIRCUIT | FUNCTION |
| 1 | C56 20DB/LB | BLOWER MOTOR SPEED CONTROL |
| 2 | A417 20RD/DB | FUSED B(+) (I.O.D.) |
| 3 | F929 20PK/DB | FUSED IGNITION SWITCH OUTPUT (RUN) |
| 4 | Z912 20BK | GROUND |
| 5 | D54 20WT | CAN B BUS (-) |
| 6 | D55 20WT/OR | CAN B BUS (+) |
| 7 | C121 22DB/DG | SENSOR GROUND |
| 8 | C21 22DB/LG | EVAPORATOR TEMPERATURE SENSOR SIGNAL |
| 9 | L24 22WT/VT | AUTO HEADLAMPS SIGNAL |
| 10 | G939 22VT/DB | SUN SENSOR RETURN |
| 11 | C32 22DB/TN | RECIRCULATION DOOR DRIVER (A) |
| 12 | C35 22LB/OR | MODE DOOR DRIVER (A) |
| 13 | C61 22DB/LG | BLEND DOOR DRIVER |
| 14 | C34 22DB/LB | COMMON DOOR DRIVER |
| 15 | C830 20DB/YL | IR SENSOR RETURN |
| 16 | C83 20DB/LG | IR SENSOR SIGNAL |