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Standard Ignition RY-556 Headlight Dimmer Switch Relay
| Brand | Standard Ignition RY-556 |
|---|---|
| Amperage Rating | 20 A |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Contents | Relay |
| Continuous Duty | No |
| Functions | Relay |
| Mounting Bracket(s) Included | No |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Voltage | 12 |
| Fits | Toyota and Lexus · 176 vehicles |
12V relay. Built with a 20A rating for dependable electrical switching.
Blade terminals. Four male terminals and a rectangular connector simplify hookup.
Air condition control relay. A relay built for electrical and lighting control functions.
Cross-references Standard Ignition RY-556, 20871 and 8592614020 for the same application. See all 5.
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Not what you need? See all Headlight Dimmer Switch Relay options
Headlight Dimmer Switch Relay for Toyota and Lexus
Standard Ignition RY-556 is a 12-volt relay with a 20 amp amperage rating, rectangular female connector, and 4 male blade terminals. It is built for electrical control applications and is listed here for Toyota and Lexus fitments across a wide range of model years.
Key Features
- Standard Ignition RY-556 relay for electrical and lighting system service
- 12V relay with 20 A amperage rating
- 1 rectangular female connector
- 4 male blade terminals
- Functions as an air condition control relay
- Compatible with Toyota Camry, Corolla, Tacoma, Tundra, and related Lexus applications
Product Details
This Standard Ignition RY-556 relay is a direct-fit electrical component for vehicles that use a 12-volt, 4-terminal blade-style relay with a rectangular female connector. It is listed for a broad range of Toyota and Lexus models, including Toyota Camry, Corolla, Tacoma, Tundra, 4Runner, and Lexus ES300, LS400, and LS430 applications. If you are searching for a Toyota Camry relay, Toyota Corolla relay, or Lexus ES300 relay by part number RY-556, this unit matches the specified electrical configuration and interchange references.
This part cross-references Standard Ignition RY-556 for the same application.
Common Replacement Uses
- Restoring relay operation in the air conditioning control circuit
- Replacing a relay with intermittent electrical contact
- Addressing HVAC control issues caused by relay failure
- Correcting a no-response condition in relay-controlled circuits
- Replacing a damaged 4-terminal blade relay in Toyota and Lexus systems
Installation Notes and Tips
- Verify the connector shape, terminal count, and terminal gender before installation.
- Confirm the vehicle uses a 12V relay with a 20 A rating and rectangular female connector.
- Match the relay location and circuit function to the original part before replacement.
- Inspect the connector terminals for corrosion, heat damage, or looseness during service.
Quality Assurance
Standard Ignition replacement electrical components are cataloged to match specified OE-style applications and connector configurations for service accuracy.
This part fits 176 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2005 | Toyota | MR2 Spyder | — | — | — | N/A | — |
| 2004 | Toyota | MR2 Spyder | — | — | — | N/A | — |
| 2003 | Toyota | MR2 Spyder | — | — | — | N/A | — |
| 2003 | Toyota | MR2 Spyder | — | 1.8L | L4 | N/A | — |
| 2003 | Toyota | Prius | — | 1.5L | L4 | N/A | — |
| 2002 | Toyota | MR2 Spyder | — | 1.8L | L4 | N/A | — |
| 2002 | Toyota | MR2 Spyder | — | — | — | N/A | — |
| 2002 | Toyota | Prius | — | 1.5L | L4 | N/A | — |
| 2002 | Toyota | Solara | — | 2.4L | L4 | N/A | — |
| 2002 | Toyota | Solara | — | 3.0L | V6 | N/A | — |
| 2002 | Toyota | Tacoma | — | 3.4L | V6 | N/A | — |
| 2002 | Toyota | Tacoma | — | 2.7L | L4 | N/A | — |
| 2002 | Toyota | Tacoma | — | 2.4L | L4 | N/A | — |
| 2002 | Toyota | Tundra | — | 3.4L | V6 | N/A | — |
| 2002 | Toyota | Tundra | — | 4.7L | V8 | N/A | — |
| 2001 | Lexus | ES300 | — | — | — | N/A | — |
| 2001 | Lexus | LS430 | — | — | — | N/A | — |
| 2001 | Toyota | Camry | — | 3.0L | V6 | N/A | — |
| 2001 | Toyota | Camry | — | 2.2L | L4 | N/A | — |
| 2001 | Toyota | Corolla | — | — | — | N/A | — |
| 2001 | Toyota | Corolla | — | 1.8L | L4 | N/A | — |
| 2001 | Toyota | MR2 Spyder | — | 1.8L | L4 | N/A | — |
| 2001 | Toyota | MR2 Spyder | — | — | — | N/A | — |
| 2001 | Toyota | Prius | — | 1.5L | L4 | N/A | — |
| 2001 | Toyota | Solara | — | 2.2L | L4 | N/A | — |
| 2001 | Toyota | Solara | — | 3.0L | V6 | N/A | — |
| 2001 | Toyota | Tacoma | — | 2.7L | L4 | N/A | — |
| 2001 | Toyota | Tacoma | — | 3.4L | V6 | N/A | — |
| 2001 | Toyota | Tacoma | — | 2.4L | L4 | N/A | — |
| 2001 | Toyota | Tundra | — | 4.7L | V8 | N/A | — |
| 2001 | Toyota | Tundra | — | 3.4L | V6 | N/A | — |
| 2000 | Lexus | LS400 | — | — | — | N/A | 4 Term. |
| 2000 | Toyota | Camry | — | 3.0L | V6 | N/A | — |
| 2000 | Toyota | Camry | — | 2.2L | L4 | N/A | — |
| 2000 | Toyota | Corolla | — | 1.8L | L4 | N/A | — |
| 2000 | Toyota | Corolla | — | — | — | N/A | — |
| 2000 | Toyota | MR2 Spyder | — | 1.8L | L4 | N/A | — |
| 2000 | Toyota | MR2 Spyder | — | — | — | N/A | — |
| 2000 | Toyota | Solara | — | 2.2L | L4 | N/A | — |
| 2000 | Toyota | Solara | — | 3.0L | V6 | N/A | — |
| 2000 | Toyota | Solara | — | — | — | N/A | — |
| 2000 | Toyota | Tacoma | — | 3.4L | V6 | N/A | — |
| 2000 | Toyota | Tacoma | — | 2.4L | L4 | N/A | — |
| 2000 | Toyota | Tacoma | — | 2.7L | L4 | N/A | — |
| 2000 | Toyota | Tundra | — | 3.4L | V6 | N/A | — |
| 2000 | Toyota | Tundra | — | 4.7L | V8 | N/A | — |
| 1999 | Lexus | LS400 | — | — | — | N/A | 4 Term. |
| 1999 | Toyota | Avalon | — | 3.0L | V6 | N/A | — |
| 1999 | Toyota | Camry | — | 2.2L | L4 | N/A | — |
| 1999 | Toyota | Camry | — | 3.0L | V6 | N/A | — |
| 1999 | Toyota | Corolla | — | 1.8L | L4 | N/A | — |
| 1999 | Toyota | Solara | — | 3.0L | V6 | N/A | — |
| 1999 | Toyota | Solara | — | 2.2L | L4 | N/A | — |
| 1999 | Toyota | Tacoma | — | 2.4L | L4 | N/A | — |
| 1999 | Toyota | Tacoma | — | 2.7L | L4 | N/A | — |
| 1999 | Toyota | Tacoma | — | 3.4L | V6 | N/A | — |
| 1999 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1998 | Lexus | LS400 | — | — | — | N/A | 4 Term. |
| 1998 | Toyota | Avalon | — | 3.0L | V6 | N/A | — |
| 1998 | Toyota | Camry | — | 2.2L | L4 | N/A | — |
| 1998 | Toyota | Camry | — | 3.0L | V6 | N/A | — |
| 1998 | Toyota | Corolla | — | 1.8L | L4 | N/A | — |
| 1998 | Toyota | T100 | — | 3.4L | V6 | N/A | — |
| 1998 | Toyota | T100 | — | 2.7L | L4 | N/A | — |
| 1998 | Toyota | T100 | — | — | — | N/A | — |
| 1998 | Toyota | Tacoma | — | 3.4L | V6 | N/A | — |
| 1998 | Toyota | Tacoma | — | 2.4L | L4 | N/A | — |
| 1998 | Toyota | Tacoma | — | 2.7L | L4 | N/A | — |
| 1998 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1997 | Toyota | Camry | — | 3.0L | V6 | N/A | — |
| 1997 | Toyota | Camry | — | 2.2L | L4 | N/A | — |
| 1997 | Toyota | Corolla | — | 1.8L | L4 | N/A | — |
| 1997 | Toyota | Corolla | — | 1.6L | L4 | N/A | — |
| 1997 | Toyota | Paseo | — | 1.5L | L4 | N/A | — |
| 1997 | Toyota | Previa | — | 2.4L | L4 | N/A | — |
| 1997 | Toyota | RAV4 | — | 2.0L | L4 | N/A | — |
| 1997 | Toyota | T100 | — | 2.7L | L4 | N/A | — |
| 1997 | Toyota | T100 | — | 3.4L | V6 | N/A | — |
| 1997 | Toyota | T100 | — | — | — | N/A | — |
| 1997 | Toyota | Tacoma | — | 3.4L | V6 | N/A | — |
| 1997 | Toyota | Tacoma | — | 2.7L | L4 | N/A | — |
| 1997 | Toyota | Tacoma | — | 2.4L | L4 | N/A | — |
| 1997 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1996 | Toyota | 4Runner | — | — | — | N/A | — |
| 1996 | Toyota | Camry | — | 3.0L | V6 | N/A | — |
| 1996 | Toyota | Camry | — | 2.2L | L4 | N/A | — |
| 1996 | Toyota | Corolla | — | 1.8L | L4 | N/A | — |
| 1996 | Toyota | Corolla | — | 1.6L | L4 | N/A | — |
| 1996 | Toyota | Paseo | — | 1.5L | L4 | N/A | — |
| 1996 | Toyota | Previa | — | 2.4L | L4 | N/A | — |
| 1996 | Toyota | RAV4 | — | 2.0L | L4 | N/A | — |
| 1996 | Toyota | T100 | — | 3.4L | V6 | N/A | — |
| 1996 | Toyota | T100 | — | 2.7L | L4 | N/A | — |
| 1996 | Toyota | Tacoma | — | 3.4L | V6 | N/A | — |
| 1996 | Toyota | Tacoma | — | 2.7L | L4 | N/A | — |
| 1996 | Toyota | Tacoma | — | 2.4L | L4 | N/A | — |
| 1996 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1995 | Lexus | ES300 | — | — | — | N/A | — |
| 1995 | Toyota | 4Runner | — | — | — | N/A | — |
| 1995 | Toyota | Camry | — | 2.2L | L4 | N/A | — |
| 1995 | Toyota | Camry | — | 3.0L | V6 | N/A | — |
| 1995 | Toyota | Corolla | — | 1.8L | L4 | N/A | — |
| 1995 | Toyota | Corolla | — | 1.6L | L4 | N/A | — |
| 1995 | Toyota | Paseo | — | 1.5L | L4 | N/A | — |
| 1995 | Toyota | Previa | — | 2.4L | L4 | N/A | — |
| 1995 | Toyota | T100 | — | 2.7L | L4 | N/A | — |
| 1995 | Toyota | T100 | — | 3.4L | V6 | N/A | — |
| 1995 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1994 | Lexus | ES300 | — | — | — | N/A | — |
| 1994 | Lexus | LS400 | — | — | — | N/A | — |
| 1994 | Toyota | 4Runner | — | — | — | N/A | — |
| 1994 | Toyota | Camry | — | 2.2L | L4 | N/A | — |
| 1994 | Toyota | Camry | — | 3.0L | V6 | N/A | — |
| 1994 | Toyota | Corolla | — | 1.8L | L4 | N/A | — |
| 1994 | Toyota | Corolla | — | 1.6L | L4 | N/A | — |
| 1994 | Toyota | Paseo | — | 1.5L | L4 | N/A | — |
| 1994 | Toyota | Previa | — | 2.4L | L4 | N/A | — |
| 1994 | Toyota | T100 | — | 3.0L | V6 | N/A | — |
| 1994 | Toyota | T100 | — | 2.7L | L4 | N/A | — |
| 1994 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1993 | Lexus | ES300 | — | — | — | N/A | — |
| 1993 | Lexus | LS400 | — | — | — | N/A | — |
| 1993 | Toyota | 4Runner | — | — | — | N/A | — |
| 1993 | Toyota | Camry | — | 2.2L | L4 | N/A | — |
| 1993 | Toyota | Camry | — | 3.0L | V6 | N/A | — |
| 1993 | Toyota | Corolla | — | 1.6L | L4 | N/A | — |
| 1993 | Toyota | Corolla | — | 1.8L | L4 | N/A | — |
| 1993 | Toyota | Paseo | — | 1.5L | L4 | N/A | — |
| 1993 | Toyota | Previa | — | 2.4L | L4 | N/A | — |
| 1993 | Toyota | T100 | — | 3.0L | V6 | N/A | — |
| 1993 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1992 | Lexus | ES300 | — | — | — | N/A | — |
| 1992 | Lexus | LS400 | — | — | — | N/A | — |
| 1992 | Toyota | 4Runner | — | — | — | N/A | — |
| 1992 | Toyota | Camry | — | 3.0L | V6 | N/A | — |
| 1992 | Toyota | Camry | — | 2.2L | L4 | N/A | — |
| 1992 | Toyota | Corolla | — | 1.6L | L4 | N/A | — |
| 1992 | Toyota | Cressida | — | 3.0L | L6 | N/A | — |
| 1992 | Toyota | Paseo | — | 1.5L | L4 | N/A | — |
| 1992 | Toyota | Previa | — | 2.4L | L4 | N/A | — |
| 1992 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1991 | Lexus | ES250 | — | — | — | N/A | — |
| 1991 | Lexus | LS400 | — | — | — | N/A | — |
| 1991 | Toyota | 4Runner | — | — | — | N/A | — |
| 1991 | Toyota | Camry | — | 2.0L | L4 | N/A | — |
| 1991 | Toyota | Camry | — | 2.5L | V6 | N/A | — |
| 1991 | Toyota | Corolla | — | 1.6L | L4 | N/A | — |
| 1991 | Toyota | Cressida | — | 3.0L | L6 | N/A | — |
| 1991 | Toyota | Previa | — | 2.4L | L4 | N/A | — |
| 1991 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1990 | Lexus | ES250 | — | — | — | N/A | — |
| 1990 | Lexus | LS400 | — | — | — | N/A | — |
| 1990 | Toyota | 4Runner | — | — | — | N/A | — |
| 1990 | Toyota | Camry | — | 2.0L | L4 | N/A | — |
| 1990 | Toyota | Camry | — | 2.5L | V6 | N/A | — |
| 1990 | Toyota | Corolla | — | 1.6L | L4 | N/A | — |
| 1990 | Toyota | Cressida | — | 3.0L | L6 | N/A | — |
| 1990 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1989 | Toyota | Camry | — | 2.5L | V6 | N/A | — |
| 1989 | Toyota | Camry | — | 2.0L | L4 | N/A | — |
| 1989 | Toyota | Celica | — | 2.0L | L4 | N/A | — |
| 1989 | Toyota | Corolla | — | 1.6L | L4 | N/A | — |
| 1989 | Toyota | Cressida | — | 3.0L | L6 | N/A | — |
| 1989 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1988 | Toyota | Camry | — | 2.5L | V6 | N/A | — |
| 1988 | Toyota | Camry | — | 2.0L | L4 | N/A | — |
| 1988 | Toyota | Celica | — | 2.0L | L4 | N/A | — |
| 1988 | Toyota | Cressida | — | 2.8L | L6 | N/A | — |
| 1988 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1987 | Toyota | Camry | — | 2.0L | L4 | N/A | — |
| 1987 | Toyota | Celica | — | 2.0L | L4 | N/A | — |
| 1987 | Toyota | Cressida | — | 2.8L | L6 | N/A | — |
| 1987 | Toyota | Tercel | — | 1.5L | L4 | N/A | — |
| 1985 | Toyota | Celica | GT | — | — | N/A | — |
| 1985 | Toyota | Celica | GTS | — | — | N/A | — |
| 1985 | Toyota | Celica | ST | — | — | N/A | — |
| No rows match your filter. | |||||||
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — RY-556208718592614020AR6096R6096