Keep your interior dome and courtesy lights responding correctly with the Standard Ignition Door Jamb Switch DS-370, a direct-fit replacement for the 1990 Lexus LS400. This switch senses whether a door is open or closed and signals the interior lighting circuit, helping the cabin lights react the way they should when a door opens or closes.
Interchange: S1055 · SW149 · DJ6353 · 8423117030 · 8423130170 · 8423150010. Manufacturer part number DS-370.
This part cross-references / interchanges with the following part numbers:
What does the DS-370 door jamb switch do?
It senses whether a door is open or closed and signals the interior lighting circuit, controlling the courtesy/dome lights and any door-ajar warning.
What vehicle does this fit?
It is a direct-fit replacement for the 1990 Lexus LS400. Check the Buyer's Guide tab to confirm fitment for your vehicle.
Which door positions is it cataloged for?
It is listed for the front left, front right, and rear door jamb positions.
What are signs my door jamb switch may be failing?
Interior lights that stay on with doors closed, fail to turn on when a door opens, or an intermittent door-ajar indicator may point to a worn switch—diagnose the cause first.
What other part numbers does it replace?
It interchanges with S1055, SW149, DJ6353, 8423117030, 8423130170, and 8423150010. Its manufacturer part number is DS-370.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
