The front window Defogger was blowing then all of a sudden it quit. The A/C & heat will not work, could this be a fuse or blower/fan problem?

Check the fuse and relay for the Front Blower. You can swap front the back to test the relay.

Fuse Box Diagram Chrysler Town & Country (2001-2007)

https://fuse-box.info > chrysler > chrysler-town-country...
Fuse box diagram (location and assignment of electrical fuses and relays) for Chrysler Town & Country (Voyager) (2001, 2002, 2003, 2004, 2005, 2006, 2007).
You visited this page on 29/01/22.

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  Fuse Box Diagram Chrysler

  https://fuse-box.info > Home > Chrysler
  Fuse box diagram (location and assignment of electrical fuses and relays) for Chrysler Town & Country (Voyager) (2001, 2002, 2003, 2004, 2005, 2006, 2007).

As by heat only works some of the time , you mean it doesn't blow air out of the vent's . This means you probably have a problem with the blower motor or blower motor resistor or blower motor relay .
Rear Window Defogger Inoperative

Exchange the rear defogger relay with a known good relay from the under hood junction block.
1. Turn the ignition switch to the ON position.
2. Press the rear defogger switch to the ON position.

Does the rear defogger grid warm?
--
Yes Go to Step 2
NO Go to Step 3

2

Replace the faulty relay.
Is the repair complete?
Go to Defogger System Check --

3

1. Use a fused jumper wire in order to backprobe between terminal A4 of underhood junction block connector C3 and ground.
2. Use a test lamp in order to backprobe between terminal C5 of underhood junction block connector C3 and ground.

Does the test lamp light?
--
Go to Step 4
Go to Step 23

4

1. Use a test lamp in order to backprobe between terminal C5 of underhood junction block connector C3 and ground.
2. Press the rear defogger switch to the ON position.

Does the test lamp light?
--
Go to Step 5
Go to Step 14

Is your heater blower motor working on all speeds ? Are you get any air coming from the rear vents ?

remove the fan motor cover and check the wires on the fan motor 99%chance that one is burnt off

blower fuse is the one your looking for prob not under hood lookinside the door jam if no fuses are blowed than its prob the cluster switch in the dash were u select fan speed

Lets Look at the fuses once more the # 2 threw 5 i have seen the fuse be good but it had loss contact in the fuse box, remove the fuse and install them to see if this helps
Also at the battery there is a fuse link check here to see if this has blown or loss contact,, a new one can be spliced in if needs replacemint

CIRCUIT INFORMATION
(What the fuse is for.) 1 25 Amp Rear washer / wiper - Located just right of top center in fuse bank. 2 15 Amp Radio, Cigarette lighter 3 25 Amp Heater blower motor - (* - if this keeps blowing or you only have heat on one speed check your blower motor resistor pack.) 4 20 Amp Turn signal, Back-up lights, Rear window defogger relay 5 10 Amp Dome light, Courtesy lights, Glove box light, Cargo light, Radio memory, Power mirrors, Teltak connector (For old analog "bag" cell phones, I think.) 6 15 Amp Hazard warning lights, Brake / Stop lights 7 10 Amp Parking lights, Headlight Warning Chime/Buzzer, Instrument panel light dimmer 8 7.5 Amp Gauges, Instrument cluster, Seat belt warning, Headlight delay, Chime module, Overhead console 9 5 Amp Instrument panel illumination 10 25 Amp Rear window defogger 11 30 Amp
Circuit Breaker Power door locks, Power seats, Trailer towing wiring harness 12 10 Amp ETR (Delco OEM) radio, Power antenna 13
(1984 - 1987) - - - Spare Fuse (GM automatics and manual transmissions.) 13
(1988) 7.5 Amp Transmission control unit (For AW4 automatic transmissions) 14 25 Amp Headlight delay, Horns, Security alarm 15 5.5 Amp
Circuit Breaker Front windshield wipers 16 30 Amp
Circuit Breaker Power Windows 17 10 Amp Clock, Security alarm (Ignition)

if you wiggle the wires on the bottom of the fan blower block ( under & behind the glovebox ) it will prpbably take off.jeeps have a bad connector

gms are notorious for having a bad ground too the blower moters,try running a ground from the neg side of the battery too the blower moter!!

Check the Front Blower Motor Relay located in the IPM Relay and Fuse Box. It's location should be identified on the back side of the cover. There are other exact Relays (like the Spare Relay or the adjacent: Rear Blower Motor Relay or Defogger Relay) that you can switch out and check operations. If the Front works now but not the Rear, it is the Relay and should be replaced.

hope this helps. if u have any other questions just let me know




Fuse locations for options not shown can be found in the corresponding wiring diagrams.
Amp.


1 - Headlight, Low Beam, Left (56b) 10
2 - Headlight, Low Beam, Right (56b) 10
3 - License Plate Lights (5 10
4 - Rear Window Wiper And Washer System 15
5 - Windshield Wiper/Washer 15
6 - Fresh Air Blower, A/C (X) 20
7 - Tail Lights, Right (58R) 10
8 - Tail Lights, Left (58L) 10
9 - Rear Window Defogger 20
10 - Fog Lights 15
11 - Headlight, High Beam, Left (56a) 10
12 - Headlight, High Beam, Right (56a) 10
13 - Horn (15) 10
14 - Back-Up Lights 10
15 - Engine Electronics (15) 10
16 - Power Sunroof, Front Map/Reading Light 15
17 - Emergency Flashers (15) 10
18 - Fuel Pump (FP), Heated Oxygen Sensor (HO2S)
Control Module 20
19 - Coolant Fan, A/C Relay (30) 30
20 - Brake Lights (30) 10
21 - Interior Lights, Clock, Luggage Compartment
Light (30) 15
22 - Cigarette Lighter, Radio, Luggage Compartment
Release 10

Separate Fuses

(Located above the relays)



- Fuse for ABS hydraulic pump relay 30
- Fuse for ABS main relay 30
- Fuse for A/C 30
- Fuse for power windows 20
- Fuse for cruise control 5
- Fuse for cigarette lighter 15