How to remove and check of the headlight control switch and rheostat on Toyota MR2?

The headlight switch and rheostat are located in the left pod of the instrument cluster finish panel. To check the switch or rheostat, first disconnect the instrument cluster finish panel from the dash panel and pull it out to access the electrical connector. Disconnect the headlight switch electrical connector, then remove the large locknut by pulling the knob straight off and using a six-point, deep socket to take off the switch housing from the cluster finish panel. To check the light control switch, use an ohmmeter to verify continuity between terminals; if continuity is not as specified, replace the switch. For the light control rheostat, measure the resistance between terminals 1 and 9 while gradually changing the brightness from maximum to minimum, ensuring the resistance increases from 0 to 4.5 ohms; if it does not, replace the switch. Installation follows the reverse order of removal.

Genuine Toyota MR2 Headlight Switch

Headlamp Switch

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3 Headlight Switches found

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Toyota MR2 Switch Assembly, Light Control
Part Number: 84112-19645
Product Specifications
- Other Name: Switch Assy, Light Control, NO.1; Headlamp Switch
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1985-1989 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 Switch Assembly, Light Control
Part Number: 84112-80051
Product Specifications
- Other Name: Switch Assy, Light Control, NO.1; Headlamp Switch
- Manufacturer Note: EVP 1 PACKAGE & W(CRUISE CONTROL)
- 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
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Toyota MR2 Switch Assembly, Light Control
Part Number: 84112-80069
Product Specifications
- Other Name: Switch Assy, Light Control, NO.1; Headlamp Switch, Light 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

Toyota MR2 Headlight Switch

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Toyota MR2 Headlight Switch Parts Questions & Experts Answers

Switch Assembly, Light Control
84112-19645
Q: How to remove and check of the headlight control switch and rheostat on Toyota MR2?
A: The headlight switch and rheostat are located in the left pod of the instrument cluster finish panel. To check the switch or rheostat, first disconnect the instrument cluster finish panel from the dash panel and pull it out to access the electrical connector. Disconnect the headlight switch electrical connector, then remove the large locknut by pulling the knob straight off and using a six-point, deep socket to take off the switch housing from the cluster finish panel. To check the light control switch, use an ohmmeter to verify continuity between terminals; if continuity is not as specified, replace the switch. For the light control rheostat, measure the resistance between terminals 1 and 9 while gradually changing the brightness from maximum to minimum, ensuring the resistance increases from 0 to 4.5 ohms; if it does not, replace the switch. Installation follows the reverse order of removal.