How to service and repair the A/C Switch Assembly (Auto A/C) on 2004 Toyota Avalon?

Service or repair of the Air Conditioning Control Assembly (Auto A/C) starts by removing the A/C control panel after removing four screws followed by releasing the four claws with a screwdriver while taping the screwdriver tip. After unlocking the connector lock you should grip the flat harness and slowly extract it from the A/C control panel. You should release the 2 claws before holding the connector of the amplifier to remove it from the holder. Turning the screwdriver to the left direction will enable you to remove the bulb from its socket. To put the bulb back it should be placed inside the A/C control panel before turning it right to achieve locking position. Place the amplifier from its electrostatic prevention bag while holding its connector to install it into the A/C control panel case before installing the holder. Verify that the amplifier connector fits correctly. To complete the installation insert the flat cable into place and secure the A/C control panel by checking its fitting to the 4 claws before locking the screws.

OEM 2004 Toyota Avalon A/C Switch

Air Conditioning Switch

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6 A/C Switches found

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2004 Toyota Avalon Heater Control Knob, Outer
Part Number: 55905-12440-B1
$13.06 MSRP: $18.19
You Save: $5.13 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Knob Sub-Assembly, Control; HVAC Heater Control Knob, Outer
- Position: Outer
- Replaces: 55905-12440-C0
- Item Weight: 0.40 Pounds
- Condition: New
- SKU: 55905-12440-B1
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
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Fits the following 2004 Toyota Avalon Submodels:
- XL, XLS | 6 Cyl 3.0 L GAS
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2004 Toyota Avalon Heater Control Knob, Inner
Part Number: 55905-41270-C0
$12.40 MSRP: $17.27
You Save: $4.87 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Knob Sub-Assembly, Control; HVAC Heater Control Knob, Inner; Knob, Heater Control
- Manufacturer Note: BLACK,TRIM0#,1#,4#
- Position: Inner
- Part Name Code: 55905B
- Item Weight: 0.80 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- Require Quantity: 2
- SKU: 55905-41270-C0
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2004 Toyota Avalon Submodels:
- XL, XLS | 6 Cyl 3.0 L GAS
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2004 Toyota Avalon Heater Control Button
Part Number: 55905-41300-C0
$8.80 MSRP: $12.24
You Save: $3.44 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Knob Sub-Assembly, Control; Knob, Heater Control
- Manufacturer Note: BLACK,TRIM0#,1#,4#
- Part Name Code: 55905K
- Item Weight: 0.60 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 55905-41300-C0
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2004 Toyota Avalon Submodels:
- XL, XLS | 6 Cyl 3.0 L GAS
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2004 Toyota Avalon Control Assembly
Part Number: 55900-07042
$1744.00 MSRP: $2555.85
You Save: $811.85 (32%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Control Assembly, Air Conditioner; HVAC Temperature Control Panel; Climate Control Module; Dash Control Unit
- Manufacturer Note: W(SEAT HEATER)
- Replaces: 55900-07040, 55900-07041
- Part Name Code: 55900
- Item Weight: 1.50 Pounds
- Item Dimensions: 13.5 x 7.6 x 3.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 55900-07042
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2004 Toyota Avalon Submodels:
- XL, XLS | 6 Cyl 3.0 L GAS
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2004 Toyota Avalon Control Assembly
Part Number: 55900-07032
$1744.00 MSRP: $2555.85
You Save: $811.85 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Assembly, Air Conditioner; HVAC Temperature Control Panel; Climate Control Module; Dash Control Unit
- Replaces: 55900-07031, 55900-07030
- Part Name Code: 55900
- Item Weight: 1.50 Pounds
- Item Dimensions: 13.5 x 7.5 x 3.9 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 55900-07032
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2004 Toyota Avalon Submodels:
- XL, XLS | 6 Cyl 3.0 L GAS
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2004 Toyota Avalon Panel Assembly
Part Number: 55902-41021
Product Specifications
- Other Name: Panel Sub-Assembly, Air; HVAC Temperature Control Panel; Panel Sub-Assembly, Air Conditioner
- Replaces: 55902-41020
- Part Name Code: 55902C
- Item Weight: 1.70 Pounds
- Item Dimensions: 11.8 x 7.1 x 4.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 55902-41021
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2004 Toyota Avalon Submodels:
- XL | 6 Cyl 3.0 L GAS

2004 Toyota Avalon A/C Switch

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2004 Toyota Avalon Parts Questions & Experts Answers

Q: How to service and repair the A/C Switch Assembly (Auto A/C) on 2004 Toyota Avalon?
A: Service or repair of the Air Conditioning Control Assembly (Auto A/C) starts by removing the A/C control panel after removing four screws followed by releasing the four claws with a screwdriver while taping the screwdriver tip. After unlocking the connector lock you should grip the flat harness and slowly extract it from the A/C control panel. You should release the 2 claws before holding the connector of the amplifier to remove it from the holder. Turning the screwdriver to the left direction will enable you to remove the bulb from its socket. To put the bulb back it should be placed inside the A/C control panel before turning it right to achieve locking position. Place the amplifier from its electrostatic prevention bag while holding its connector to install it into the A/C control panel case before installing the holder. Verify that the amplifier connector fits correctly. To complete the installation insert the flat cable into place and secure the A/C control panel by checking its fitting to the 4 claws before locking the screws.