Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 2008 >> Edge AWD V6-3.5L >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Pinpoint Tests >> Test H: The DATC System Is Inoperative, Intermittent Or Incorrect Operation
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

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

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

Normal Operation
Under normal operation, the HVAC module - dual automatic temperature control (DATC) receives a ground through circuit GD115 (BK/GY). The HVAC module - DATC is supplied constant battery voltage through circuit SBP15 (WH/RD) and ignition switched voltage through circuit CBP37 (WH).

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

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


H1-H9:






H10-H13:






H14:




pro multis · About Operation CHARM