MakeToyota

8423150190 SWITCH ASSY, COURTESY LAMP (FOR FRONT DOOR)

Compatibility

Toyota 8423150190

DescriptionModelOptionsProd PeriodDiagram
UWG60UWG60-AEXGHATM,MTM: CONTINUOUSLY VARIABLE TRANSMISSION; Engine: (2URFSE) 5000CC 32-VALVE DOHC EFI06.2018 - ... View
DescriptionModelOptionsProd PeriodDiagram
GRS202GRS202R-AETQKATM,MTM: AUTOMATIC TRANSMISSION; Driver's Position: RIGHT-HAND DRIVE VEHICLES; Grade: ROYAL SALOON TYPE; Gear Shift Type: ATM, 6-SPEED FLOOR SHIFT; Engine: (3GRFE) 3000CC 24-VALVE DOHC EFI09.2010 - 12.2012 View
DescriptionModelOptionsProd PeriodDiagram
AZSH32,KZSM30KZSM30-CEDGSATM,MTM: 1-SPEED TRANSMISSION; Grade: Z TYPE; Engine: (MOTOR) MOTOR11.2023 - ... View
DescriptionModelOptionsProd PeriodDiagram
ARS220,AZSH2#,GWS224GWS224-AEXPBATM,MTM: CONTINUOUSLY VARIABLE TRANSMISSION; NO. Of Doors: 4-DOOR; Body: SEDAN; Grade: S TYPE; Fuel Induction: HIGH EFFICIENCY TWIN CAM; Engine: (8GRFXS) 3500CC 24-VALVE DOHC06.2018 - 10.2020 View
DescriptionModelOptionsProd PeriodDiagram
GRS18#,UZS18#UZS187-CETZKATM,MTM: AUTOMATIC TRANSMISSION; Body: SEDAN; Grade: C TYPE,C TYPE I-FOUR; Fuel Induction: HIGH EFFICIENCY TWIN CAM; Gear Shift Type: ATM, 6-SPEED FLOOR SHIFT; Engine: (3UZFE) 4300CC 32-VALVE DOHC EFI06.2004 - 12.2008 View
DescriptionModelOptionsProd PeriodDiagram
URS206,UZS207UZS207-CETZKATM,MTM: AUTOMATIC TRANSMISSION; Grade: I-FOUR TYPE; Gear Shift Type: ATM, 6-SPEED FLOOR SHIFT; Engine: (3UZFE) 4300CC 32-VALVE DOHC EFI03.2009 - 07.2013 View
DescriptionModelOptionsProd PeriodDiagram
GRX12#GRX125-AEAZHATM,MTM: AUTOMATIC TRANSMISSION; Body: SEDAN; Grade: 250G TYPE; Gear Shift Type: ATM, 5-SPEED FLOOR SHIFT; Engine: (4GRFSE) 2500CC 24-VALVE DOHC EFI11.2004 - 09.2009 View
DescriptionModelOptionsProd PeriodDiagram
JPD20JPD20R-CEDSSWNO. Of Doors: 4-DOOR; Driver's Position: RIGHT-HAND DRIVE VEHICLES; Body: SEDAN; Engine: (3KM) ELECTRIC MOTOR; Destination: EUROPE11.2020 - ... View

Information

πŸš— Front Door Courtesy Light Switch

This small door-activated switch is an important part of the cabin electrical system. It tells the vehicle when the front door is open or closed, so the interior lamp, warning buzzer, security system, and door indicator can work correctly. A good switch helps the driver see the cabin at night and prevents the battery from draining due to false door signals.

βš™οΈ How It Works

The switch is mounted in the front door area and is pressed when the door closes. When the door opens, the spring-loaded contact changes position and sends a signal to the body control circuit. This simple action turns the courtesy lamp on, activates the door-open warning, and supports alarm or key reminder functions, depending on the vehicle equipment.

πŸ”§ Signs of a Faulty Switch

If this part fails, the cabin lamp may stay on, not turn on at all, or flicker while driving. The dashboard may show a door-open warning even when the door is shut. In some cases, the alarm may behave incorrectly, the remote locking may act strange, or the battery may discharge overnight. Replacement restores clean contact and reliable door status detection.

βœ… Compatible Models

  • Century
  • Crown
  • Crown Sedan
  • Crown/Hybrid
  • Crown/Majesta
  • Majesta
  • Mark X
  • Mirai