Test K: The Dual Temperature Control Is Inoperative/Does Not Operate Correctly

PINPOINT TEST K: THE DUAL TEMPERATURE CONTROL IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

K1-K2:

K3-K8:

K8 Continued:

Normal Operation
Under normal operation, the LH and RH discharge temperature sensors receive a ground from the Dual Automatic Temperature Control (DATC) module through circuit (LH) 9-FA47 (BN/GN)/9-FA3 (BN/RD) and (RH) 9-FA51 (BN/YE)/9-FA3 (BN/RD). A 5-volt reference voltage is supplied to the LH and RH discharge temperature sensors from the DATC module through circuits (LH) 8-FA47 (WH/GN) and (RH) 8-FA51 (WH/BK).

Possible Causes
- An open in circuit 9-FA47 (BN/GN) or 9-FA51 (BN/YE)
- DATC module.