Test A

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

Test A1-A4:

Test A5:

Normal Operation
Under normal operation, the Dual Automatic Temperature Control (DATC) module receives battery voltage through circuit 29-FA10 (OG/GN) and ignition voltage through circuit 20-FA10 (PK/OG). A ground is provided for the DATC module through circuit 31-FA10 (BK).

Possible Causes
- An open in circuit 29-FA10 (OG/GN), 20-FA10 (PK/OG) or 31-FA10 (BK).
- DATC module.