Test E: No Communication With the Electronic Automatic Temperature Control Module

PINPOINT TEST E: NO COMMUNICATION WITH THE ELECTRONIC AUTOMATIC TEMPERATURE CONTROL MODULE

E1-E2:

E2-E3:

Normal Operation
Under normal operation, the electronic automatic temperature control (EATC) module is grounded through circuit 676 (PK/OG). The EATC module receives battery voltage through circuit 22 (LB/BK) and ignition voltage through circuit 296 (WH/VT).

Possible Causes
- Fuse(s)
- An open in circuit 22 (LB/BK), 296 (WH/VT) 676 (PK/OG)