How to Service and Repair the A/C Switch and Amplifier on 2003 Toyota Sequoia?

The first step for repairing the control assembly requires complete disassembly of the A/C amplifier. Begin by unscrewing the 2 heater control switch retaining screws then disconnect the 4 screws securing the A/C amplifier and PC board. Move the three bulbs from the PC board while also removing the bulb from the A/C amplifier. The reassembly process must be done in the reverse sequence of how the parts were disassembled.

OEM 2003 Toyota Sequoia A/C Switch

Air Conditioning Switch

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2003 Toyota Sequoia Trim Plate, Rear
Part Number: 55902-0C020
$46.65 MSRP: $64.94
You Save: $18.29 (29%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Panel Sub-Assembly, Air; HVAC Temperature Control Panel, Rear; Panel Sub-Assembly, Air Conditioner
- Position: Rear
- Part Name Code: 55902C
- Item Weight: 1.70 Pounds
- Item Dimensions: 11.9 x 7.1 x 4.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 55902-0C020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2003 Toyota Sequoia Submodels:
- Limited | 8 Cyl 4.7 L GAS
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2003 Toyota Sequoia Trim Plate, Rear
Part Number: 55902-0C010
$31.31 MSRP: $43.58
You Save: $12.27 (29%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Panel Sub-Assembly, Air; HVAC Temperature Control Panel, Rear; Panel Sub-Assembly, Air Conditioner
- Position: Rear
- Part Name Code: 55902C
- Item Weight: 1.70 Pounds
- Item Dimensions: 12.4 x 6.8 x 4.2 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 55902-0C010
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2003 Toyota Sequoia Submodels:
- SR5 | 8 Cyl 4.7 L GAS
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2003 Toyota Sequoia Heater Control, Rear
Part Number: 55900-0C030
$637.79 MSRP: $934.69
You Save: $296.90 (32%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Control Assembly, Air Conditioner; HVAC Temperature Control Panel, Rear; Climate Control Module; Dash Control Unit
- Position: Rear
- Part Name Code: 55900D
- Item Weight: 1.30 Pounds
- Item Dimensions: 9.6 x 6.1 x 4.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 55900-0C030
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2003 Toyota Sequoia Submodels:
- Limited | 8 Cyl 4.7 L GAS
View related parts
2003 Toyota Sequoia Heater Control, Rear
Part Number: 55900-0C020
Product Specifications
- Other Name: Control Assembly, Air Conditioner; HVAC Temperature Control Panel, Rear; Climate Control Module; Dash Control Unit
- Position: Rear
- Part Name Code: 55900D
- Item Weight: 1.30 Pounds
- Item Dimensions: 9.6 x 6.0 x 4.0 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 55900-0C020
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
More Info
Fits the following 2003 Toyota Sequoia Submodels:
- SR5 | 8 Cyl 4.7 L GAS

2003 Toyota Sequoia A/C Switch

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2003 Toyota Sequoia Parts Questions & Experts Answers

Q: How to Service and Repair the A/C Switch and Amplifier on 2003 Toyota Sequoia?
A: The first step for repairing the control assembly requires complete disassembly of the A/C amplifier. Begin by unscrewing the 2 heater control switch retaining screws then disconnect the 4 screws securing the A/C amplifier and PC board. Move the three bulbs from the PC board while also removing the bulb from the A/C amplifier. The reassembly process must be done in the reverse sequence of how the parts were disassembled.