Question about 2001 Ford Focus

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Air conditioning switch only works on high, when you put dial on 1,2or 3 it does not go on, only on 4

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The blower resistor has burned out/broken. Replace it.

Posted on Jun 20, 2009

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Posted on Jan 02, 2017

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How do you get the heater to work on a 2003 Chevy venture mini van


When you change the mode from floor to vent to defrost do you hear switching taking place behind the dash or inside ?

Air Delivery Improper

Test Description
The numbers below refer to the step numbers on the diagnostic table.
The measured voltage should be near the specified values for each mode position.
The HVAC control module is supplied by two ignition 3 voltage circuits. Test the ignition 3 voltage circuit that does not supply the blower motor switch.
Step
Action
Value
Yes
No
Schematic Reference: HVAC Schematics
Connector End View Reference: HVAC Connector End Views
DEFINITION: Air does not flow correctly from the air distribution outlets.
1
Did you perform the HVAC Diagnostic System Check?
--
YES - Go to Step 2
NO - Go to Diagnostic System Check - HVAC Systems - Manual
2
Turn ON the ignition, with the engine OFF.
Place the blower motor switch in the OFF position.
Is the blower motor OFF?
--
YES - Go to Step 3
NO - Go to Blower Motor Always On
3
Place the blower motor switch in each speed position.
Does the blower motor operate at all?
--
YES - Go to Step 4
NO - Go to Blower Motor Inoperative
4
Does the blower motor operate in each speed position?

YES - Go to Step 5
NO - Go to Blower Motor Malfunction
5
Except for the blower motor speed, are all of the functions of the HVAC control module inoperative?
--
YES - Go to Step 14
NO - Go to Step 6
6
Place the blower motor switch in the maximum speed position.
Place the mode switch in the vent position.
Place the recirculation switches in the recirculation position and in the outside air position.
Does the recirculation door move to the correct position for each selection?
--
YES - Go to Step 7
NO - Go to Air Recirculation Malfunction
7
Place the blower motor switch in the maximum speed position.
Place the mode switch in each position.
Is the air flow sufficient from the correct outlets in each mode?
--
YES - Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
NO - Go to Step 8
8
Inspect the air distribution system for the following conditions:
• A dirty HVAC air filter, if applicable
• An obstruction to the air flow
• Air leaks
• Misaligned air ducts
Did you find and correct the condition?
--
YES - Go to Step 23
NO - Go to Step 9
9
Inspect the mode door and the mode actuator for the following conditions:
• A misaligned mode actuator
Refer to Mode Actuator Replacement .
• Broken or binding linkages or mode door
• An obstruction that prevents the mode actuator from operating within its full range of motion
• Missing seals to the mode door
• Misaligned seals to the mode door
Did you find and correct the condition?
--
YES - Go to Step 23
NO - Go to Step 10
10
Turn OFF the ignition.
Disconnect the mode actuator.
Turn ON the ignition, with the engine OFF.
Probe the ignition 3 voltage circuit of the mode actuator with a test lamp that is connected to a good ground.
Does the test lamp illuminate?
--
YES - Go to Step 11
NO - Go to Step 20
11
Test the ground circuit of the mode actuator for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
YES - Go to Step 23
NO - Go to Step 12
12
Measure the voltage from the mode door control circuit of the mode actuator to a good ground.
Place the mode switch in each mode position while observing the voltage.
Does the voltage measure near the specified values for each mode position?
Vent 0.2V, Bi-Level 3.0V, Floor 6.0V, Mix-Blend 9.0V, Defrost 12.0V
YES - Go to Step 18
NO - Go to Step 13
13
Test the mode door control circuit of the mode actuator for an open, high resistance, short to ground, or short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
YES - Go to Step 23
NO - Go to Step 19
14
Test the ignition 3 voltage circuit of the HVAC control module for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
YES - Go to Step 23
NO - Go to Step 15
15
Test the battery positive voltage circuit of the HVAC control module for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
YES - Go to Step 23
NO - Go to Step 16
16
Test the ground circuit of the HVAC control module for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
YES - Go to Step 23
NO - Go to Step 17
17
Test the off blower motor control circuit of the HVAC control module for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
--
YES - Go to Step 23
NO - Go to Step 19
18
Inspect for poor connections at the harness connector of the mode actuator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 21
19
Inspect for poor connections at the harness connector of the HVAC control module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 23
Go to Step 22
20
Repair the ignition 3 voltage circuit of the mode actuator. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair?
--
Go to Step 23
--
21
Replace the mode actuator. Refer to Mode Actuator Replacement .
Did you complete the replacement?
--
Go to Step 23
--
22
Replace the HVAC Control module. Refer to HVAC Control Module Replacement .
Did you complete the replacement?
--
Go to Step 23
--
23
Operate the system in order to verify the repair.
Did you correct the condition?
--
System OK
Go to Step 8

Mar 14, 2017 | Mini Cars & Trucks

1 Answer

My air conditioning button stay lite all the time and the air doesnt work when the car is at and idle


if it stops working at idle or stop lights, the problem most likely is that the condenser is not getting cooling air from the ac fan in front of it
this results in a high head pressure and so the high pressure switch stops the ac compressor
take it to an accredited ac specialist shop for a proper diagnosis

Jul 18, 2016 | 2003 Pontiac Sunfire

1 Answer

Where is the air conditioning sensor located ?


1 What are you working on?
2 Which of several sensors do you mean? Low pressure switch? High pressure limit switch?
3 Temperature control sensor?
4 Other?

Jul 06, 2015 | Cars & Trucks

2 Answers

Kia Sedona- center and third row heating vents blowing cold air


There is a separate button on the lower dash labeled RR HTR for the rear heater. If you do not engage the switch it will blow cold air.
kia-sedona-center-third-row-heating-ir03o0ur3ff3pxc4zrfsqvc4-3-0.jpg

Nov 13, 2013 | Kia Cars & Trucks

1 Answer

Air conditioning is weak


I will explain a few things about air conditioning and a possible rework using a $12 part. An orifice tube is part of some Air conditioners. The cheap ones are $3, but a self-adjust orifice for areas of 105 Degree heat are available. If done with a Freon Recovery machine, Freon costs will be minimal. It takes a special tool to change the part, but you could get the High Temp orifice online and find a place to switch it. Vacuum pumping is advised before refill.
Second, the best amount of Freon is a moderate charge. You have 2 cut-off switches one for low and one for high. This means the compressor will cut off when either extreme is reached. The recommended amount of Freon fill is what the Factory has determined. So many ounces per Label.
Air flow. You could just have a blocked Air flap under the dash or a Solenoid that is not turning the flap fully open. What you could do is try a used car on a lot and see how the blower works.
Fan speed resistor. If you have Digital Climate Control, this is an almost infinite speed regulator. Part of it could be burned out and even if the duct flaps are working properly, you won't get the push out of the system. Or it may have a part called a Solar switch which works with Climate Control and the other switches.
So if the Shop checked the Freon charge and it was Okay, there are still the additional items I mentioned which can affect the performance of the Air Conditioner. Again, check car lots for used cars to start up and check A/C performance.

Jun 29, 2013 | 2008 Ford Edge

1 Answer

Air condition and heat won't work


Check to see if you are getting voltage to the blower motor if you are the motor is bad if not check the fan speed switch. 1 2 3 or low medium high if you get voltage going to the switch but not from replace the switch if you have voltage from switch check the blower motor resistor the although with the blower resistor you commonly have a high fan speed in the max setting and the lower speed settings don't work wich would make you think 1 2 3 are not working but 4 is. That is why it is best to check all parts to make sure the part you do replace needed to be replaced

Oct 15, 2012 | 2000 Ford Focus

2 Answers

Passenger window won't operate at all, hot air


What is the solution for window not working?

Jun 28, 2010 | 1998 Ford Windstar

3 Answers

Air conditioning only works on high - 2002 Grand Caravan


If you are looking for the fan blower resistor, it is located behind the glove box. No tools need to get to it and a nut driver to remove the 2 screws to replace it. A 20$ part. It has 2 sets of wires coming off of it. A do it yourself fix.

Dec 29, 2008 | 2002 Dodge Grand Caravan

3 Answers

AIR CONDITION


replace switch, works 9 times out of 9.

Nov 08, 2008 | 1998 Nissan Frontier

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