06 GT no heat?

[70snake]

Alright I'm tired of listening to my wife moan about how her feet get cold in her 06 GT, because it has little to NO floor heat. I took it to the dealership and was told that they have had 7-8 05-06 GT's with the same issue, and Ford is telling them it's normal (wtf?) . I had an 05 GT that had plenty of floor heat, so i dont know where to start on this one. Does anyone know if the defrost/panel/floor selector is vacuum or electrically controlled? I've tried every combination I can think of, and there's just no heat.




2006 Mustang GT (that thinks it's a '69 Mach 1 )
2001 F350 V10 4x4 crew
1970 Shelby GT500
1965 A/FX Comet

 

[DarkFireGT]

Both of mine have floor heat. That is definitely not normal.

 

[GOLDENPONY]

Heat

NOT NORMAL

 

[stanmckinney]

Not normal, no way.

 

[ski]

There should be heated air coming out of the floor vent. It's possible that the diverter inside the airbox that directs the air to the different locations is either binding, or an object is blocking its movement.
See what another dealer says.

 

[cowtown]

Definitely not normal, in fact without any ventilation on at all after a long drive on a warm day it can get downright warm in the footwell.

 

[Joe Fan]

Alright I'm tired of listening to my wife moan about how her feet get cold in her 06 GT, because it has little to NO floor heat.

Get a different wife. Keep the Stang.

 

[07gtfolife]

Get a different wife. Keep the Stang.

 

[Spdfreak]

Hmm, I have this as well, but I live in the south. Only on the coldest of winter nights has it been a concern. Doesn't bother me.

 

[GalaxieWarrior]

Not normal at all mine are kinda always on.

 

[blbrchnk]

Mine was the same way when I got it. I took it back to the dealership and after looking at it for a while he pulled forward the glovebox and there was like a 8 (can't remember exact number) wire connector sitting behind it simply not connected. He plugged it in, and voila heat. I hope this helps.

 

[projetmech]

whats normal is the dealership cant figure it out and lies to you. thats perfectly normal.

 

[blbrchnk]

Did you get the problem fixed?

 

[official_style]

mine had this problem, first they did something which didnt fix it, then they changed the climate controls, now it works perfectly.

 

[plnfixr320]

The air distribution is no longer a vacuum system. The SJB controls 3 actuators and a recirculation door motor (for fresh air). The actuator for floor air is located just to the drivers side of the centerstack inboard of the instument cluster it is connector C234. It has 5 wires so I would assume that it's a 6 wire connector with one empty slot. Wiring is as follows:

RD-LG V REF ACTUATOR

RD-WH V REF GND

YE-LB PANEL/FLOOR FEEDBACK

GY-LB PANEL/FLOOR CCW

BR-WH PANEL/FLOOR CW

Pinpoint Test B: Incorrect/Erratic Direction Of Airflow From Outlet(s)

Normal Operation
Under normal operation, to rotate the mode door actuator clockwise, the EMTC module supplies voltage to the BLEND, DEFROST and FLOOR/PANEL mode door actuator motors through the door actuator feed B circuits, and supplies ground through the door actuator feed A circuits. To rotate the mode door actuator counterclockwise, the EMTC module reverses the voltage and ground circuits.

The mode door actuator feedback resistors are supplied a ground from the EMTC module by the mode door actuator return circuits and a 5-volt reference voltage on the mode door actuator reference circuits. The EMTC module reads the voltage on the mode door actuator feedback circuits to determine the mode door actuator position by the position of the actuator feedback resistor wiper arm.

Door actuator feed B circuits
Blend — 1376 (BK/LB)
Defrost — 1137 (YE/LG)
Floor/Panel — 1129 (BN/WH)
Door actuator feed A circuits
Blend — 1375 (PK/YE)
Defrost — 1136 (RD/WH)
Floor/Panel — 1128 (GY/LB)
Door actuator return circuits
Blend — 438 (RD/WH)
Defrost — 438 (RD/WH)
Floor/Panel — 438 (RD/WH)
Door actuator reference circuits
Blend — 436 (RD/LG)
Defrost — 436 (RD/LG)
Floor/Panel — 436 (RD/LG)
Door actuator feedback circuits
Blend — 437 (YE/LG)
Defrost — 1982 (LB/BK)
Floor/Panel — 435 (YE/LB)
Possible Causes
An open, short to voltage, ground or together in door actuator open, close, return, reference or feedback circuits
Blend, air inlet, defrost and floor/panel mode door actuator motor
EATC module
Manual climate control module
Stuck or bound linkage or door

PINPOINT TEST B: INCORRECT/ERRATIC DIRECTION OF AIRFLOW FROM OUTLET(S)
Test Step Result / Action to Take
B1 CHECK THE AIRFLOW
Key in ON position.
Check the air discharge temperature in full COOL and full WARM and airflow in the PANEL, DEFROST and FLOOR modes.
Is the air discharge temperature and airflow correct in each setting?
Yes
The system is operating normally.

No
If the airflow is from the floor only or panel only in any mode except OFF and DEFROST and airflow is from defrost only on DEFROST mode, follow diagnostics for floor/panel door actuator. GO to B2 .

If the airflow is from the defrost only in all modes except OFF or from floor/panel in DEFROST mode, follow diagnostics for defrost door actuator. GO to B2 .

If the temperature control is inoperative/does not operate correctly, follow diagnostics for the blend door actuator. GO to B2 .

If the RECIRC button does not change the air inlet door position, Go To Pinpoint Test A .
B2 CHECK THE FEEDBACK POTENTIOMETER TOTAL RESISTANCE
Disconnect: EMTC Module C294a.
Disconnect: For Floor/Panel Door Actuator: Temperature Blend Door Actuator C289 and Defrost Door Actuator C232.
Disconnect: For Defrost Door Actuator: Temperature Blend Door Actuator C289 and Floor/Panel Door Actuator C234.
Disconnect: For Blend Door Actuator: Defrost Door Actuator C232 and Floor/Panel Door Actuator C234.
Remove the door actuator and disengage the actuator driveshaft from the actuator door.
Mark the door actuator driveshaft position.
Measure the resistance between EMTC module C294a-5, circuit 436 (RD/LG) and EMTC module C294a-15, circuit 438 (RD/WH).

Is the resistance between 5,000 and 6,000 ohms?
Yes
GO to B3 .

No
If the resistance is greater than 6,000 ohms, GO to B5 . If the resistance is less than 5,000 ohms, GO to B7 .
B3 CHECK THE POTENTIOMETER LOW SIDE RESISTANCE
Measure the resistance between EMTC module C294a-15, circuit 438 (RD/WH) and the following:
For floor/panel door actuator: EMTC module C294a-16, circuit 435 (YE/LB).
For defrost door actuator: EMTC module C294a-17, circuit 1982 (LB/BK).
For blend door actuator: EMTC module C294a-18, circuit 437 (YE/LG).


Is the resistance between 250 and 5,500 ohms?
Yes
GO to B4 .

No
If the resistance is greater than 5,500 ohms, GO to B8 . If the resistance is less than 250 ohms, GO to B9 .
B4 CHECK THE POTENTIOMETER HIGH SIDE RESISTANCE
Measure the resistance between EMTC module C294a-5, circuit 436 (RD/LG) and the following:
For floor/panel door actuator: EMTC module C294a-16, circuit 435 (YE/LB).
For defrost door actuator: EMTC module C294a-17, circuit 1982 (LB/BK).
For blend door actuator: EMTC module C294a-18, circuit 437 (YE/LG).


Is the resistance between 250 and 5,500 ohms?
Yes
GO to B11 .

No
If the resistance is greater than 5,500 ohms, INSTALL a new door actuator. TEST the system for normal operation. If the resistance is less than 250 ohms, GO to B10 .
B5 CHECK CIRCUIT 436 (RD/LG) FOR AN OPEN
Disconnect: Floor/Panel Door Actuator C234, Defrost Door Actuator C232 or Blend Door Actuator C289.
Measure the resistance between EMTC module C294a-5, circuit 436 (RD/LG) and the following:
For floor/panel: floor/panel door actuator C234-3, circuit 436 (RD/LG).
For defrost: defrost door actuator C232-3, circuit 436 (RD/LG).
For blend: blend door actuator C289-3, circuit 436 (RD/LG).


Is the resistance less than 5 ohms?
Yes
GO to B6 .

No
REPAIR circuit 436 (RD/LG) for an open. TEST the system for normal operation.
B6 CHECK THE ACTUATOR RETURN CIRCUIT 438 (RD/WH) FOR AN OPEN
Measure the resistance between EMTC module C294a-15, circuit 438 (RD/WH) and the following:
For floor/panel: floor/panel door actuator C234-2, circuit 438 (RD/WH).
For defrost: defrost door actuator C232-2, circuit 438 (RD/WH).
For blend: blend door actuator C289-2, circuit 438 (RD/WH).


Is the resistance less than 5 ohms?
Yes
INSTALL a new door actuator. TEST the system for normal operation.

No
REPAIR circuit 438 (RD/WH) for an open. TEST the system for normal operation.
B7 CHECK CIRCUITS 438 (RD/WH) AND 436 (RD/LG) FOR A SHORT TOGETHER
Disconnect: Floor/Panel Door Actuator C234, Defrost Door Actuator C232 or Blend Door Actuator C289.
Measure the resistance between EMTC module C294a-5, circuit 436 (RD/LG) and EMTC module C294a-15, circuit 438 (RD/WH).

Is the resistance greater than 10,000 ohms?
Yes
INSTALL a new door actuator. TEST the system for normal operation.

No
REPAIR circuit 438 (RD/WH) and circuit 436 (RD/LG) for a short together. TEST the system for normal operation.
B8 CHECK CIRCUITS 435 (YE/LB), 1982 (LB/BK) OR 437 (YE/LG) FOR AN OPEN
Disconnect: Floor/Panel Door Actuator C234, Defrost Door Actuator C232 or Blend Door Actuator C289.
Measure the resistance between the following:
For floor/panel door actuator: EMTC module C294a-16, circuit 435 (YE/LB) and floor/panel door actuator C234-4, circuit 435 (YE/LB).
For defrost door actuator: EMTC module C294a-17, circuit 1982 (LB/BK) and defrost door actuator C232-4, circuit 1982 (LB/BK).
For blend door actuator: EMTC module C294a-18, circuit 437 (YE/LG) and floor door actuator C289-4, circuit 437 (YE/LG).


Is the resistance less than 5 ohms?
Yes
INSTALL a new door actuator. TEST the system for normal operation.

No
REPAIR circuit 435 (YE/LB), 1982 (LB/BK) or 437 (YE/LG) for an open. TEST the system for normal operation.
B9 CHECK CIRCUIT 438 (RD/WH) FOR A SHORT TO CIRCUITS 435 (YE/LB), 1982 (LB/BK) OR 437 (YE/LG)
Disconnect: Floor/Panel Door Actuator C234, Defrost Door Actuator C232 or Blend Door Actuator C289.
Measure the resistance between EMTC module C294a-15, circuit 438 (RD/WH) and the following:
For floor/panel door actuator: EMTC module C294a-16, circuit 435 (YE/LB).
For defrost door actuator: EMTC module C294a-17, circuit 1982 (LB/BK).
For blend door actuator: EMTC module C294a-18, circuit 437 (YE/LG).


Is the resistance greater than 10,000 ohms?
Yes
INSTALL a new door actuator. TEST the system for normal operation.

No
REPAIR circuit 438 (RD/WH) and circuits 435 (YE/LB), 1982 (LB/BK) or 437 (YE/LG) for a short together. TEST the system for normal operation.
B10 CHECK CIRCUIT 436 (RD/LG) FOR A SHORT TO CIRCUITS 435 (YE/LB), 1982 (LB/BK) OR CIRCUIT 437 (YE/LG)
Disconnect: Floor/Panel Door Actuator C234, Defrost Door Actuator C232 or Blend Door Actuator C289.
Measure the resistance between EMTC module C294a-5, circuit 436 (RD/LG) and the following:
For floor/panel door actuator: EMTC module C294a-16, circuit 435 (YE/LB).
For defrost door actuator: EMTC module C294a-17, circuit 1982 (LB/BK).
For blend door actuator: EMTC module C294a-18, circuit 437 (YE/LG).


Is the resistance greater than 10,000 ohms?
Yes
INSTALL a new door actuator. TEST the system for normal operation.

No
REPAIR circuits 436 (RD/LG) and circuits 435 (YE/LB), 1982 (LB/BK) or 437 (YE/LG) for a short together. TEST the system for normal operation.
B11 CHECK CIRCUITS 436 (RD/LG), 437 (YE/LG), 435 (YE/LB) OR 1982 (LB/BK) FOR A SHORT TO GROUND
Disconnect: Floor/Panel Door Actuator C234, Defrost Door Actuator C232 or Blend Door Actuator C289.
Measure the resistance between ground and the following:
EMTC module C294a-5, circuit 436 (RD/LG).
For floor/panel door actuator: EMTC module C294a-16, circuit 435 (YE/LB).
For defrost door actuator: EMTC module C294a-17, circuit 1982 (LB/BK).
For blend door actuator: EMTC module C294a-18, circuit 437 (YE/LG).


Is the resistance greater than 10,000 ohms?
Yes
GO to B12 .

No
REPAIR circuit(s) for a short to ground. TEST the system for normal operation.
B12 CHECK CIRCUITS 438 (RD/WH), 437 (YE/LG), 435 (YE/LB) OR 1982 (LB/BK) FOR A SHORT TO VOLTAGE
Key in ON position.
Measure the voltage between ground and the following:
EMTC module C294a-15, circuit 438 (RD/WH).
For floor/panel door actuator: EMTC module C294a-16, circuit 435 (YE/LB).
For defrost door actuator: EMTC module C294a-17, circuit 1982 (LB/BK).
For blend door actuator: EMTC module C294a-18, circuit 437 (YE/LG).


Is voltage present?
Yes
REPAIR circuit(s) for a short to voltage. TEST the system for normal operation.

No
GO to B13 .
B13 CHECK THE DOOR ACTUATOR CLOCKWISE OPERATION
Connect a fused jumper wire between EMTC module C294a-26, circuit 1566 (RD/YE) and:
For floor/panel door actuator: EMTC module C294a-20, circuit 1129 (BN/WH).
For defrost door actuator: EMTC module C294a-25, circuit 1137 (YE/LG).
For blend door actuator: EMTC module C294a-7, circuit 1376 (BK/LB).


Connect a second fused jumper wire between EMTC module C294a-1, circuit 1205 (BK) and:
For floor/panel door actuator: EMTC module C294a-19, circuit 1128 (GY/LB).
For defrost door actuator: EMTC module C294a-24, circuit 1136 (RD/WH).
For blend door actuator: EMTC module C294a-6, circuit 1375 (PK/YE).


Does the actuator motor move in the clockwise direction?
Yes
GO to B14 .

No
GO to B15 .
B14 CHECK THE DOOR ACTUATOR COUNTERCLOCKWISE OPERATION
Connect a fused jumper wire between EMTC module C294a-1, circuit 1205 (BK) and:
For floor/panel door actuator: EMTC module C294a-20, circuit 1129 (BN/WH).
For defrost door actuator: EMTC module C294a-25, circuit 1137 (YE/LG).
For blend door actuator: EMTC module C294a-7, circuit 1376 (BK/LB).


Connect a second fused jumper wire between EMTC module C294a-26, circuit 1566 (RD/YE) and:
For floor/panel door actuator: EMTC module C294a-19, circuit 1128 (GY/LB).
For defrost door actuator: EMTC module C294a-24, circuit 1136 (RD/WH).
For blend door actuator: EMTC module C294a-6, circuit 1375 (PK/YE).


Does the actuator motor move in the counterclockwise direction?
Yes
INSPECT for binding or broken door and linkage. If no condition is found, INSTALL a new EATC module or EMTC module. TEST the system for normal operation.

No
GO to B15 .
B15 CHECK THE ACTUATOR MOTOR DRIVE CIRCUITS FOR AN OPEN
Disconnect: Floor/Panel Door Actuator C234, Defrost Door Actuator C232 or Blend Door Actuator C289.
Measure the resistance between:
For floor/panel door actuator: EMTC module C294a-20, circuit 1129 (BN/WH) and floor/panel door actuator C234-6, circuit 1129 (BN/WH).
For defrost door actuator: EMTC module C294a-25, circuit 1137 (YE/LG) and defrost door actuator C232-6, circuit 1997 BN/YE).
For blend door actuator: EMTC module C294a-7, circuit 1376 (BK/LB) and blend door actuator C289-6, circuit 1376 (BK/LB).


Measure the resistance between:
For floor/panel door actuator: EMTC module C294a-19, circuit 1128 (GY/LB) and floor/panel door actuator C234-1, circuit 1128 (GY/LB).
For defrost door actuator: EMTC module C294a-24, circuit 1136 (RD/WH) and defrost door actuator C232-1, circuit 1136 (RD/WH).
For blend door actuator: EMTC module C294a-6, circuit 1375 (PK/YE) and blend door actuator C289-1, circuit 1375 (PK/YE).


Are the resistances less than 5 ohms?
Yes
GO to B16 .

No
REPAIR the circuit(s) for an open. TEST the system for normal operation.
B16 CHECK THE ACTUATOR MOTOR DRIVE CIRCUITS FOR A SHORT TO GROUND
Measure the resistance between ground and:
For floor/panel door actuator: EMTC module C294a-20, circuit 1129 (BN/WH).
For defrost door actuator: EMTC module C294a-25, circuit 1137 (YE/LG).
For blend door actuator: EMTC module C294a-7, circuit 1376 (BK/LB).


Measure the resistance between ground and:
For floor/panel door actuator: EMTC module C294a-19, circuit 1128 (GY/LB).
For defrost door actuator: EMTC module C294a-24, circuit 1136 (RD/WH).
For blend door actuator: EMTC module C294a-6, circuit 1375 (PK/YE).


Are the resistances greater than 10,000 ohms?
Yes
GO to B17 .

No
REPAIR the circuit(s) for a short to ground. TEST the system for normal operation.
B17 CHECK THE ACTUATOR MOTOR DRIVE CIRCUITS FOR A SHORT TO VOLTAGE
Key in ON position.
Measure the voltage between ground and:
For floor/panel door actuator: EMTC module C294a-20, circuit 1129 (BN/WH).
For defrost door actuator: EMTC module C294a-25, circuit 1137 (YE/LG).
For blend door actuator: EMTC module C294a-7, circuit 1376 (BK/LB).


Measure the voltage between ground and:
For floor/panel door actuator: EMTC module C294a-19, circuit 1128 (GY/LB).
For defrost door actuator: EMTC module C294a-24, circuit 1136 (RD/WH).
For blend door actuator: EMTC module C294a-6, circuit 1375 (PK/YE).


Is voltage present?
Yes
REPAIR the circuit(s) for a short to voltage. TEST the system for normal operation.

No
GO to B18 .
B18 CHECK THE ACTUATOR MOTOR DRIVE CIRCUITS FOR A SHORT TOGETHER
Key in OFF position.
NOTE: For floor/panel door actuator:
Measure the resistance between EMTC module C294a-19, circuit 1128 (GY/LB) and EMTC module C294a-20, circuit 1129 (BN/WH).

NOTE: For defrost door actuator:
Measure the resistance between EMTC module C294a-24, circuit 1136 (RD/WH) and EMTC module C294a-25, circuit 1137 (YE/LG).

NOTE: For blend door actuator:
Measure the resistance between EMTC module C294a-6, circuit 1375 (PK/YE) and EMTC module C294a-7, circuit 1376 (BK/LB).

Is the resistance greater than 10,000 ohms?
Yes
INSPECT for binding or broken linkage. If no condition is found, INSTALL a new door actuator. TEST the system for normal operation.

No
REPAIR circuit(s) for a short together. TEST the system for normal operation.