Test D: The Air Conditioning (A/C) Is Inoperative In Defrost and Floor/Defrost

PINPOINT TEST D: THE AIR CONDITIONING (A/C) IS INOPERATIVE IN DEFROST AND FLOOR/DEFROST

D1:

D1-D3:

Normal Operation
Under normal operation, the function selector switch is grounded through circuit 91-FA20 (BK/YE). When the switch is closed, ground is provided to the function selector switch through circuit 91S-FA20 (BK/YE).

Possible Causes
- An open in circuit 91-FA20 (BK/YE) or 91S-FA20 (BK/YE)
- Function selector switch