Test F: The EATC System Is Inoperative, Intermittent Or Incorrect Operation

PINPOINT TEST F: THE EATC SYSTEM IS INOPERATIVE, INTERMITTENT OR INCORRECT OPERATION

NOTE: For a complete explanation of the electronic automatic temperature control (EATC) system functions, refer to Description and Operation.

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

This pinpoint test is intended to diagnose the following:
- Fuse(s)
- Wiring, terminals or connectors
- HVAC module - EATC

F1-F5:

F6-F13:

F13-F14: