Test F: No Communication With the Electronic Automatic Temperature Control (EATC) Module

PINPOINT TEST F: NO COMMUNICATION WITH THE ELECTRONIC AUTOMATIC TEMPERATURE CONTROL (EATC) MODULE

F1:

F2-F3:

Normal Operation
Under normal operation, the EATC module receives a ground through circuit GD145 (BK/BU). The EATC module is supplied constant battery voltage through circuit SBP28 (GN/RD) and ignition switched voltage through circuit A_CBP20 (YE/VT).

Possible Causes
- Fuse(s)
- An open in circuit GD145 (BK/BU), SBP28 (GN/RD) or A_CBP20 (YE/VT)
- EATC module