Climate Control System: Notes

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools

Illustration	Tool Name	Tool Number
	Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS)	software with appropriate hardware, or equivalent scan tool
	R-134a Manifold Gauge Set	176-R032A or equivalent
	Set, A/C Fittings	412-DS028 (D93L-19703-B) or equivalent
	Refrigerant Leak Detector	216-00001 or equivalent
	Pressure Tester	014-R1072 or equivalent
	Fluke 77 III Automotive Meter	105-R0056 or equivalent

Fig 1: Vacuum Schematic - Manual A/C

Courtesy of FORD MOTOR CO.

Item	Part Number	Description
1	18A318	Vacuum control motor - panel/defrost door
2	18A478	Panel/defrost door (full vacuum position)
3	-	Defrost air flow
4	18B545	Temperature blend door (full heat position)
5	19860	A/C evaporator core
6	19A813	Air inlet duct door (full vacuum position)
7	-	Outside air inlet
8	18A318	Vacuum control motor - air inlet door
9	-	Recirculated air inlet
10	19805	Blower motor
11	18476	Heater core
12	18A559	Panel/floor door (full vacuum position)
13	-	Floor air flow
14	-	Vacuum source
15	19A566	A/C vacuum reservoir tank and bracket
16	19B888	A/C-heater function selector switch
17	18A318	Vacuum control motor - panel/floor door
18	-	Panel vent air flow
19	18495	Heater control valve

Fig 2: Function Selector Switch Vacuum Connector End View

Courtesy of FORD MOTOR CO.

Port	Hose Color	Function
1	White	Air Inlet Door
2	Yellow	Panel/Floor Door
3	Black	Vacuum Source
4	-	Not Used
5	Blue	Panel/Floor Door
6	Red	Panel/Defrost Door

VACUUM APPLICATION CHART - MANUAL A/C

Switch Port	Color	Function	Function Selector Switch Position
Switch Port	Color	Function	MAX A/C	A/C	PANEL	OFF	PNL/ FLR	FLOOR	FLR/ DEF	DEF
1	White	Recirc/Fresh and Heater Control Valve	V	NV	NV	V	NV	NV	NV	NV
2	Yellow	Panel/Floor	NV	NV	NV	V	NV	V	NV	NV
3	Black	Vacuum Source	V	V	V	V	V	V	V	V
5	Blue	Panel/Floor	NV	NV	NV	V	V	V	V	NV
6	Red	Panel/Defrost	V	V	V	NV	V	NV	NV	NV
V = Vacuum NV= No Vacuum

Fig 3: Vacuum Schematic - EATC

Courtesy of FORD MOTOR CO.

Item	Part Number	Description
1	18A318	Vacuum control motor - panel/defrost door
2	18A478	Panel/defrost door (full vacuum position)
3	-	Defrost air flow
4	18B545	Temperature blend door (full heat position)
5	19860	A/C evaporator core
6	19A813	Air inlet duct door (full vacuum position)
7	-	Outside air inlet
8	18A318	Vacuum control motor - air inlet door
9	-	Recirculated air inlet
10	19805	Blower motor
11	18476	Heater core
12	18A559	Panel/floor door (full vacuum position)
13	-	Floor air flow
14	-	Vacuum source
15	19A566	A/C vacuum reservoir tank and bracket
16	19D611	ATC solenoid and manifold
17	18A318	Vacuum control motor - panel/floor door
18	-	Panel vent air flow
19	18495	Heater control valve

Fig 4: ATC Solenoid and Manifold Vacuum Connector End View

Courtesy of FORD MOTOR CO.

Port	Hose Color	Function
0	Black	Vacuum Source
1	White	Air Inlet Duct Door
2	Yellow	Panel/Floor Door
3	Blue	Panel/Floor Door
4	Red	Panel/Defrost Door
5	Gray	Heater Control Valve
6	-	Not used

VACUUM APPLICATION CHART - EATC

Port	Color	Function	Manual Override Buttons
Port	Color	Function	OFF	PANEL	PNL/FLR	FLR	FLR/DEF	DEF
0	Black	Vacuum Source	V	V	V	V	V	V
1	White	Air Inlet^a	V	V/NV	V/NV	V/NV	V/NV	NV
2	Yellow	Panel/Floor	V	NV	NV	V	NV	NV
3	Blue	Panel/Floor	V	NV	V	V	V	NV
4	Red	Panel/ Defrost	NV	V	V	NV	NV	NV
5	Gray	Heater Control Valve^b	V	V/NV	V/NV	V/NV	V/NV	V/NV
V = Vacuum NV= No Vacuum

^a The EATC system may be manually set to enable or disable the recirculation of cabin air by pressing the RECIRCULATION manual override button in all manual override modes except DEFROST.

^b The automatic temperature control solenoid and manifold will supply vacuum and close the heater control valve depending on the EATC module settings and ambient conditions in any setting except OFF.