What is the location and procedure for checking the heater blower switch, heater relay, and heater blower resistor on Toyota MR2?

The heater blower switch is situated behind the left end of the heater control panel on the dashboard. To access it, the instrument cluster finish center panel must be removed, followed by the four mounting screws of the heater/air conditioner control panel. Once the panel is pulled out enough to disconnect the electrical connector from the back of the heater blower switch, the large locknut can be removed after taking off the knob, allowing for the removal of the switch itself. Continuity of the heater blower switch should be checked, and if it does not meet specifications, the switch needs to be replaced, with installation following the reverse order of removal. The heater relay is found under the right part of the dashboard, requiring the removal of the instrument panel under cover and the right kick panel to access it. Continuity between terminals 1 and 3 and between terminals 2 and 5 should be verified, while there should be no continuity between terminals 4 and 5; if these conditions are not met, the relay must be replaced. To test the relay operation, battery voltage should be applied across terminals 1 and 3, and continuity should be checked between terminals 4 and 5, ensuring no continuity between terminals 2 and 4; if the relay fails to operate as specified, it should be replaced. The heater blower resistor is located next to the heater relay, and continuity should be verified between terminals 1 and 2 and between terminals 1 and 3, with no continuity between terminals 1 and 4; if these conditions are not met, the heater blower resistor must be replaced.

Genuine Toyota MR2 Blower Control Switches

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13 Blower Control Switches found

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Toyota MR2 Knob, Heater Blower Switch
Part Number: 84731-12010
$9.56 MSRP: $13.36
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Product Specifications
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1985-1987 Toyota MR2 | GT | 4 Cyl 1.6L | 4AGELC; 4AGELC; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJPQFA
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Toyota MR2 Knob, Heater Control
Part Number: 55905-17050
Product Specifications
- Other Name: Knob, Heater Control, NO.2
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1993-1995 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK
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Toyota MR2 Control Assy, Air Conditioner
Part Number: 55900-17100
Product Specifications
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1990-1991 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA
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Toyota MR2 Control Assembly, Heater Or Boost VENTILATOR
Part Number: 55910-17010
Product Specifications
- Other Name: Control Assy, Heater Or Boost Ventilator; Dash Control Unit
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1985-1987 Toyota MR2 | GT | 4 Cyl 1.6L | 4AGELC; 4AGELC; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJPQFA
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Toyota MR2 Switch Assy, Heater Blower
Part Number: 84732-17010
Product Specifications
- Other Name: Blower Motor Switch
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1985-1987 Toyota MR2 | GT | 4 Cyl 1.6L | 4AGELC; 4AGELC; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJPQFA
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Toyota MR2 Switch Assembly, Heater Blower
Part Number: 84732-17020
Product Specifications
- Other Name: Switch Assy, Heater Blower; Blower Motor Switch
- Manufacturer Note: W/*AAC
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1985-1987 Toyota MR2 | GT | 4 Cyl 1.6L | 4AGELC; 4AGELC; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJPQFA
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Toyota MR2 Switch Assy, Heater Blower
Part Number: 84732-17030
Product Specifications
- Other Name: Blower Motor Switch
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1990-1995 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA
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Toyota MR2 Switch Assy, Heater Blower
Part Number: 84732-17011
Product Specifications
- Other Name: Blower Motor Switch
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1986-1989 Toyota MR2 | GT, Super Charger | 4 Cyl 1.6L | 4AGELC, 4AGZE; 4AGELC, 4AGZE; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJMQRA, AW11L-WJMQRK, AW11L-WJPQFA, AW11L-WJPQRA
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Toyota MR2 Control Assy, Heater Or Boost Ventilator
Part Number: 55910-17030
Product Specifications
- Other Name: Dash Control Unit
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1986-1989 Toyota MR2 | GT, Super Charger | 4 Cyl 1.6L | 4AGELC, 4AGZE; 4AGELC, 4AGZE; AW11L-WCMQFA, AW11L-WCMQFK, AW11L-WCPQFA, AW11L-WCPQFK, AW11L-WJMQFA, AW11L-WJMQFK, AW11L-WJMQRA, AW11L-WJMQRK, AW11L-WJPQFA, AW11L-WJPQRA
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Toyota MR2 Control Assy, Heater Or Boost Ventilator
Part Number: 55910-17050
Product Specifications
- Other Name: Dash Control Unit
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1986-1989 Toyota MR2 | GT, Super Charger | 4 Cyl 1.6L | 4AGELC, 4AGZE; 4AGELC, 4AGZE; AW11L-WCMQFA, AW11L-WCPQFA, AW11L-WJMQFA, AW11L-WJMQRA, AW11L-WJPQFA, AW11L-WJPQRA
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Toyota MR2 Control Assy, Air Conditioner
Part Number: 55900-17110
Product Specifications
- Manufacturer Note: W(AIR CONDITIONER)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1990-1991 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJPZKA
View related parts
Toyota MR2 Control Assy, Air Conditioner
Part Number: 55900-17120
Product Specifications
- Other Name: Dash Control Unit
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1990-1994 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA
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Toyota MR2 Control Assy, Air Conditioner
Part Number: 55900-17130
Product Specifications
- Other Name: Dash Control Unit
- Manufacturer Note: W(AIR CONDITIONER)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1990-1995 Toyota MR2 | 4 Cyl 2.0L, 4 Cyl 2.2L | 3SGTE, 5SFE; 3SGTE, 5SFE; SW20L-ACMZZA, SW20L-AJMZZA, SW20L-AJMZZK, SW21L-ACMZKA, SW21L-ACPZKA, SW21L-AJMZKA, SW21L-AJMZKK, SW21L-AJPZKA

Toyota MR2 Blower Control Switches

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Toyota MR2 Blower Control Switches Parts Questions & Experts Answers

Knob, Heater Blower Switch
84731-12010
Q: What is the location and procedure for checking the heater blower switch, heater relay, and heater blower resistor on Toyota MR2?
A: The heater blower switch is situated behind the left end of the heater control panel on the dashboard. To access it, the instrument cluster finish center panel must be removed, followed by the four mounting screws of the heater/air conditioner control panel. Once the panel is pulled out enough to disconnect the electrical connector from the back of the heater blower switch, the large locknut can be removed after taking off the knob, allowing for the removal of the switch itself. Continuity of the heater blower switch should be checked, and if it does not meet specifications, the switch needs to be replaced, with installation following the reverse order of removal. The heater relay is found under the right part of the dashboard, requiring the removal of the instrument panel under cover and the right kick panel to access it. Continuity between terminals 1 and 3 and between terminals 2 and 5 should be verified, while there should be no continuity between terminals 4 and 5; if these conditions are not met, the relay must be replaced. To test the relay operation, battery voltage should be applied across terminals 1 and 3, and continuity should be checked between terminals 4 and 5, ensuring no continuity between terminals 2 and 4; if the relay fails to operate as specified, it should be replaced. The heater blower resistor is located next to the heater relay, and continuity should be verified between terminals 1 and 2 and between terminals 1 and 3, with no continuity between terminals 1 and 4; if these conditions are not met, the heater blower resistor must be replaced.