Switch the parking and daytime running lamp circuit with the Standard Ignition Parking Light Relay / Daytime Running Lamp Relay (MPN RY-1566). This relay uses a low-current control signal to open and close power to the lighting circuit, and it installs as a direct-fit replacement for the 2001-2005 Lexus IS300 [All]. It is cataloged under both names — Parking Light Relay and Daytime Running Lamp Relay.
- Built to last: a high-quality composite housing helps protect the internals against harsh temperatures and demanding under-hood conditions.
- Certified quality: manufactured at TS16949- and ISO9001-certified facilities to meet high industry standards.
- Wear resistance: brass or copper contacts where specified help extend wear resistance in high-stress applications.
- Electrical specs: 12-volt relay with 10 male pin terminals and a female connector; a mounting bracket is included.
If a failed relay is the cause of parking or daytime running lamps that won't switch on properly, this replaces it — diagnose the circuit first, since the same symptom can come from wiring, fuses, or the bulbs. Manufacturer part number RY-1566 (also RY1566). Country of origin: Japan.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this relay do?
It uses a low-current control signal to switch power to the parking and daytime running lamp circuit on the listed application.
Does this fit my vehicle?
It is a direct-fit replacement for the 2001-2005 Lexus IS300 [All]. Confirm your vehicle in the Buyer's Guide tab before ordering.
Is a mounting bracket included?
Yes. This relay includes a mounting bracket, and the contents are listed as 1 bracket.
What are the electrical specifications?
It is a 12-volt relay with 10 male pin terminals and a female connector.
Is this part listed under more than one name?
Yes. The manufacturer copy also calls it a Daytime Running Lamp Relay, so it is cataloged as both a Parking Light Relay and a Daytime Running Lamp Relay.
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