Test F

PINPOINT TEST F: NO COMMUNICATION WITH THE DUAL AUTOMATIC TEMPERATURE CONTROL (DATC) MODULE

Test F1:

Test F2-F3:

Normal Operation
Under normal operation, the DATC module receives a ground through circuit 1203 (BK/LB). The DATC module is supplied constant battery voltage through circuit 729 (RD/WH) and ignition switched voltage through circuit 1050 (LG/VT).

Possible Causes
- An open in circuit 1203 (BK/LB), 729 (RD/WH) or 1050 (LG/VT).
- DATC module.