OE Quality
60-Day Returns

Dorman 645-203 Power Steering Pressure Switch Connector
Power Steering Pressure Switch Connector for Honda and Acura
Dorman 645-203 is a power steering pressure switch connector built to match the original connector’s appearance and function on specified Honda and Acura applications. It uses a 2-wire pigtail layout with 16-gauge wire, female spade terminals, and a plastic terminal material for a direct electrical repair.
- Power steering pressure switch connector for select Honda and Acura vehicles
- 2-wire pigtail design with 1.18 in. harness length
- 16-gauge wiring for serviceable electrical connection
- Female spade terminal type with plastic terminal material
- OE-style replacement for restoring a damaged or corroded connector
Detailed Product Overview
This Dorman 645-203 connector is engineered for reliable performance and durability in steering electrical repair work. It is a practical replacement when the original power steering pressure switch connector is cracked, heat-damaged, loose, or no longer making a stable connection. For technicians and DIY repairs on Honda Accord, Honda Civic, Honda Pilot, Acura MDX, and other listed applications, this connector helps restore proper signal transfer at the power steering pressure switch. This part cross-references Standard Ignition PSS30 for the same application.
What This Part Helps Fix
- Intermittent power steering pressure switch signal
- Broken, brittle, or melted connector housing
- Corrosion at the electrical terminal connection
- Loose fitment at the switch plug
- Electrical faults related to steering load signal communication
Fitment
- Fits 2001-2011 Acura MDX, N/A
- Fits 1995-2011 Honda Accord, N/A
- Fits 2003-2011 Honda Pilot, N/A
- Fits 2006-2011 Honda Ridgeline, N/A
- Fits 2010 Acura ZDX, N/A
- Fits 1999-2008 Acura TL, N/A
- Fits 1999-2004 Honda Odyssey, N/A
- Fits 2001-2003 Acura CL, N/A
- Fits 1997-1999 Acura CL, N/A
- Fits 2003 Honda Accord, N/A, Built in U.S.A.
- Fits 1997-2000 Honda Civic, N/A, Built in U.S.A.; Built in Canada
- Fits 1996 Honda Civic, N/A
Installation Notes and Tips
Verify the connector style, terminal gender, and wire count against the original part before installation. Match the harness length and terminal layout to the existing power steering pressure switch connector, then secure the pigtail with proper automotive electrical repair practices. Confirm fitment on the specific Honda or Acura model and model year before final assembly.
Quality Assurance
Dorman designs this connector to match the original hardware’s appearance and function on listed applications, using quality materials for dependable service. It is built as a replacement electrical connector for steering system repairs on select Honda and Acura vehicles, including Honda Accord, Honda Civic, and Acura MDX applications.
| Brand | Dorman |
|---|---|
| Part Number | 645-203 |
| Package Contents | 2 Wire Pigtail |
| Terminal Gender | Female |
| Terminal Material | Plastic |
| Terminal Type | Spade |
| Wire Gauge Measurement | 16 |
| Wire Quantity | 2 |
| Wiring Harness Length | 1.18 |
This part fits 118 vehicles. Search below:
| Year | Make | Model | Submodel | # Doors | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2011 | Acura | MDX | 3.7L | V6 | N/A | |||
| 2011 | Honda | Accord | 3.5L | V6 | N/A | |||
| 2011 | Honda | Pilot | 3.5L | V6 | N/A | |||
| 2011 | Honda | Ridgeline | 3.5L | V6 | N/A | |||
| 2010 | Acura | MDX | 3.7L | V6 | N/A | |||
| 2010 | Acura | ZDX | 3.7L | V6 | N/A | |||
| 2010 | Honda | Accord | 3.5L | V6 | N/A | |||
| 2010 | Honda | Pilot | 3.5L | V6 | N/A | |||
| 2010 | Honda | Ridgeline | 3.5L | V6 | N/A | |||
| 2009 | Acura | MDX | 3.7L | V6 | N/A | |||
| 2009 | Honda | Accord | 3.5L | V6 | N/A | |||
| 2009 | Honda | Pilot | 3.5L | V6 | N/A | |||
| 2009 | Honda | Ridgeline | 3.5L | V6 | N/A | |||
| 2008 | Acura | MDX | 3.7L | V6 | N/A | |||
| 2008 | Acura | TL | 3.5L | V6 | N/A | |||
| 2008 | Acura | TL | 3.2L | V6 | N/A | |||
| 2008 | Honda | Accord | 3.5L | V6 | N/A | |||
| 2008 | Honda | Pilot | 3.5L | V6 | N/A | |||
| 2008 | Honda | Ridgeline | 3.5L | V6 | N/A | |||
| 2007 | Acura | MDX | 3.7L | V6 | N/A | |||
| 2007 | Acura | TL | 3.5L | V6 | N/A | |||
| 2007 | Acura | TL | 3.2L | V6 | N/A | |||
| 2007 | Honda | Accord | LX | 3.0L | V6 | N/A | ||
| 2007 | Honda | Accord | EX | 3.0L | V6 | N/A | ||
| 2007 | Honda | Accord | Special Edition | 3.0L | V6 | N/A | ||
| 2007 | Honda | Pilot | 3.5L | V6 | N/A | |||
| 2007 | Honda | Ridgeline | 3.5L | V6 | N/A | |||
| 2006 | Acura | MDX | 3.5L | V6 | N/A | |||
| 2006 | Acura | TL | 3.2L | V6 | N/A | |||
| 2006 | Honda | Accord | LX | 3.0L | V6 | N/A | ||
| 2006 | Honda | Accord | EX | 3.0L | V6 | N/A | ||
| 2006 | Honda | Pilot | 3.5L | V6 | N/A | |||
| 2006 | Honda | Ridgeline | 3.5L | V6 | N/A | |||
| 2005 | Acura | MDX | 3.5L | V6 | N/A | |||
| 2005 | Acura | TL | 3.2L | V6 | N/A | |||
| 2005 | Honda | Accord | LX | 3.0L | V6 | N/A | ||
| 2005 | Honda | Accord | EX | 3.0L | V6 | N/A | ||
| 2005 | Honda | Accord | SE | 3.0L | V6 | N/A | ||
| 2005 | Honda | Pilot | 3.5L | V6 | N/A | |||
| 2004 | Acura | MDX | 3.5L | V6 | N/A | |||
| 2004 | Acura | TL | 3.2L | V6 | N/A | |||
| 2004 | Honda | Accord | 3.0L | V6 | N/A | |||
| 2004 | Honda | Odyssey | 3.5L | V6 | N/A | |||
| 2004 | Honda | Pilot | 3.5L | V6 | N/A | |||
| 2003 | Acura | CL | 3.2L | V6 | N/A | |||
| 2003 | Acura | MDX | 3.5L | V6 | N/A | |||
| 2003 | Acura | TL | 3.2L | V6 | N/A | |||
| 2003 | Honda | Accord | 4 Door | 3.0L | V6 | N/A | ||
| 2003 | Honda | Accord | 2 Door | 3.0L | V6 | N/A | Built in U.S.A. | |
| 2003 | Honda | Odyssey | 3.5L | V6 | N/A | |||
| 2003 | Honda | Pilot | 3.5L | V6 | N/A | |||
| 2002 | Acura | CL | 3.2L | V6 | N/A | |||
| 2002 | Acura | MDX | 3.5L | V6 | N/A | |||
| 2002 | Acura | TL | 3.2L | V6 | N/A | |||
| 2002 | Honda | Accord | 2.3L | L4 | N/A | |||
| 2002 | Honda | Accord | 3.0L | V6 | N/A | |||
| 2002 | Honda | Odyssey | 3.5L | V6 | N/A | |||
| 2001 | Acura | CL | 3.2L | V6 | N/A | |||
| 2001 | Acura | MDX | 3.5L | V6 | N/A | |||
| 2001 | Acura | TL | 3.2L | V6 | N/A | |||
| 2001 | Honda | Accord | 2.3L | L4 | N/A | |||
| 2001 | Honda | Accord | 3.0L | V6 | N/A | |||
| 2001 | Honda | Odyssey | 3.5L | V6 | N/A | |||
| 2000 | Acura | TL | 3.2L | V6 | N/A | |||
| 2000 | Honda | Accord | 2.3L | L4 | N/A | |||
| 2000 | Honda | Accord | 3.0L | V6 | N/A | |||
| 2000 | Honda | Civic | LX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 2000 | Honda | Civic | EX-R | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 2000 | Honda | Civic | EX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 2000 | Honda | Civic | CX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 2000 | Honda | Civic | GX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 2000 | Honda | Civic | DX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 2000 | Honda | Civic | Si | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 2000 | Honda | Odyssey | 3.5L | V6 | N/A | |||
| 1999 | Acura | CL | 2.3L | L4 | N/A | |||
| 1999 | Acura | CL | 3.0L | V6 | N/A | |||
| 1999 | Acura | TL | 3.2L | V6 | N/A | |||
| 1999 | Honda | Accord | 2.3L | L4 | N/A | |||
| 1999 | Honda | Accord | 3.0L | V6 | N/A | |||
| 1999 | Honda | Civic | LX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1999 | Honda | Civic | EX-R | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1999 | Honda | Civic | EX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1999 | Honda | Civic | CX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1999 | Honda | Civic | GX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1999 | Honda | Civic | DX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1999 | Honda | Civic | Value Package | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1999 | Honda | Civic | Si | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1999 | Honda | Odyssey | 3.5L | V6 | N/A | |||
| 1998 | Acura | CL | 2.3L | L4 | N/A | |||
| 1998 | Acura | CL | 3.0L | V6 | N/A | |||
| 1998 | Honda | Accord | 2.3L | L4 | N/A | |||
| 1998 | Honda | Accord | 3.0L | V6 | N/A | |||
| 1998 | Honda | Civic | LX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1998 | Honda | Civic | EX-R | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1998 | Honda | Civic | EX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1998 | Honda | Civic | CX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1998 | Honda | Civic | GX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1998 | Honda | Civic | DX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1998 | Honda | Civic | Si | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1997 | Acura | CL | 2.2L | L4 | N/A | |||
| 1997 | Acura | CL | 3.0L | V6 | N/A | |||
| 1997 | Honda | Accord | 2.2L | L4 | N/A | |||
| 1997 | Honda | Accord | 2.7L | V6 | N/A | |||
| 1997 | Honda | Civic | LX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1997 | Honda | Civic | EX-R | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1997 | Honda | Civic | EX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1997 | Honda | Civic | CX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1997 | Honda | Civic | DX | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1997 | Honda | Civic | Si | 1.6L | L4 | N/A | Built in U.S.A.; Built in Canada | |
| 1996 | Honda | Accord | 2.2L | L4 | N/A | |||
| 1996 | Honda | Accord | 2.7L | V6 | N/A | |||
| 1996 | Honda | Civic | LX | 1.6L | L4 | N/A | ||
| 1996 | Honda | Civic | EX | 1.6L | L4 | N/A | ||
| 1996 | Honda | Civic | CX | 1.6L | L4 | N/A | ||
| 1996 | Honda | Civic | DX | 1.6L | L4 | N/A | ||
| 1996 | Honda | Civic | Si | 1.6L | L4 | N/A | ||
| 1995 | Honda | Accord | 2.2L | L4 | N/A | |||
| 1995 | Honda | Accord | 2.7L | V6 | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.