Test H: The DATC/EATC System Is Inoperative, Intermittent Or Incorrect Operation

PINPOINT TEST H: THE DATC/EATC SYSTEM IS INOPERATIVE, INTERMITTENT OR INCORRECT OPERATION

Normal Operation
Under normal operation, the HVAC module - electronic automatic temperature control (EATC) or HVAC module - dual automatic temperature control (DATC) receives a ground through circuit GD116 (BK/VT). The HVAC module - EATC or HVAC module - DATC is supplied constant battery voltage through circuit SBP07 (WH/RD) and ignition switched voltage through circuit CBP20 (YE/VT).

NOTE: For a complete explanation of the DATC/EATC system functions, refer to Description and Operation.

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

H1:

H2-H10:

H11-H14: