HomeSteering > Electrical ConnectorsDorman 645-203 Power Steering Pressure Switch Connector
Part #: 645-203

Dorman 645-203 Power Steering Pressure Switch Connector

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118 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Acura and Honda, MDX, Accord, Pilot, Ridgeline, ZDX, TL, Odyssey, CL, and Civic
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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.

BrandDorman
Part Number645-203
Package Contents2 Wire Pigtail
Terminal GenderFemale
Terminal MaterialPlastic
Terminal TypeSpade
Wire Gauge Measurement16
Wire Quantity2
Wiring Harness Length1.18

This part fits 118 vehicles. Search below:

YearMakeModelSubmodel# DoorsLitersCylindersPositionNotes
2011AcuraMDX3.7LV6N/A
2011HondaAccord3.5LV6N/A
2011HondaPilot3.5LV6N/A
2011HondaRidgeline3.5LV6N/A
2010AcuraMDX3.7LV6N/A
2010AcuraZDX3.7LV6N/A
2010HondaAccord3.5LV6N/A
2010HondaPilot3.5LV6N/A
2010HondaRidgeline3.5LV6N/A
2009AcuraMDX3.7LV6N/A
2009HondaAccord3.5LV6N/A
2009HondaPilot3.5LV6N/A
2009HondaRidgeline3.5LV6N/A
2008AcuraMDX3.7LV6N/A
2008AcuraTL3.5LV6N/A
2008AcuraTL3.2LV6N/A
2008HondaAccord3.5LV6N/A
2008HondaPilot3.5LV6N/A
2008HondaRidgeline3.5LV6N/A
2007AcuraMDX3.7LV6N/A
2007AcuraTL3.5LV6N/A
2007AcuraTL3.2LV6N/A
2007HondaAccordLX3.0LV6N/A
2007HondaAccordEX3.0LV6N/A
2007HondaAccordSpecial Edition3.0LV6N/A
2007HondaPilot3.5LV6N/A
2007HondaRidgeline3.5LV6N/A
2006AcuraMDX3.5LV6N/A
2006AcuraTL3.2LV6N/A
2006HondaAccordLX3.0LV6N/A
2006HondaAccordEX3.0LV6N/A
2006HondaPilot3.5LV6N/A
2006HondaRidgeline3.5LV6N/A
2005AcuraMDX3.5LV6N/A
2005AcuraTL3.2LV6N/A
2005HondaAccordLX3.0LV6N/A
2005HondaAccordEX3.0LV6N/A
2005HondaAccordSE3.0LV6N/A
2005HondaPilot3.5LV6N/A
2004AcuraMDX3.5LV6N/A
2004AcuraTL3.2LV6N/A
2004HondaAccord3.0LV6N/A
2004HondaOdyssey3.5LV6N/A
2004HondaPilot3.5LV6N/A
2003AcuraCL3.2LV6N/A
2003AcuraMDX3.5LV6N/A
2003AcuraTL3.2LV6N/A
2003HondaAccord4 Door3.0LV6N/A
2003HondaAccord2 Door3.0LV6N/ABuilt in U.S.A.
2003HondaOdyssey3.5LV6N/A
2003HondaPilot3.5LV6N/A
2002AcuraCL3.2LV6N/A
2002AcuraMDX3.5LV6N/A
2002AcuraTL3.2LV6N/A
2002HondaAccord2.3LL4N/A
2002HondaAccord3.0LV6N/A
2002HondaOdyssey3.5LV6N/A
2001AcuraCL3.2LV6N/A
2001AcuraMDX3.5LV6N/A
2001AcuraTL3.2LV6N/A
2001HondaAccord2.3LL4N/A
2001HondaAccord3.0LV6N/A
2001HondaOdyssey3.5LV6N/A
2000AcuraTL3.2LV6N/A
2000HondaAccord2.3LL4N/A
2000HondaAccord3.0LV6N/A
2000HondaCivicLX1.6LL4N/ABuilt in U.S.A.; Built in Canada
2000HondaCivicEX-R1.6LL4N/ABuilt in U.S.A.; Built in Canada
2000HondaCivicEX1.6LL4N/ABuilt in U.S.A.; Built in Canada
2000HondaCivicCX1.6LL4N/ABuilt in U.S.A.; Built in Canada
2000HondaCivicGX1.6LL4N/ABuilt in U.S.A.; Built in Canada
2000HondaCivicDX1.6LL4N/ABuilt in U.S.A.; Built in Canada
2000HondaCivicSi1.6LL4N/ABuilt in U.S.A.; Built in Canada
2000HondaOdyssey3.5LV6N/A
1999AcuraCL2.3LL4N/A
1999AcuraCL3.0LV6N/A
1999AcuraTL3.2LV6N/A
1999HondaAccord2.3LL4N/A
1999HondaAccord3.0LV6N/A
1999HondaCivicLX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1999HondaCivicEX-R1.6LL4N/ABuilt in U.S.A.; Built in Canada
1999HondaCivicEX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1999HondaCivicCX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1999HondaCivicGX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1999HondaCivicDX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1999HondaCivicValue Package1.6LL4N/ABuilt in U.S.A.; Built in Canada
1999HondaCivicSi1.6LL4N/ABuilt in U.S.A.; Built in Canada
1999HondaOdyssey3.5LV6N/A
1998AcuraCL2.3LL4N/A
1998AcuraCL3.0LV6N/A
1998HondaAccord2.3LL4N/A
1998HondaAccord3.0LV6N/A
1998HondaCivicLX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1998HondaCivicEX-R1.6LL4N/ABuilt in U.S.A.; Built in Canada
1998HondaCivicEX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1998HondaCivicCX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1998HondaCivicGX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1998HondaCivicDX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1998HondaCivicSi1.6LL4N/ABuilt in U.S.A.; Built in Canada
1997AcuraCL2.2LL4N/A
1997AcuraCL3.0LV6N/A
1997HondaAccord2.2LL4N/A
1997HondaAccord2.7LV6N/A
1997HondaCivicLX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1997HondaCivicEX-R1.6LL4N/ABuilt in U.S.A.; Built in Canada
1997HondaCivicEX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1997HondaCivicCX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1997HondaCivicDX1.6LL4N/ABuilt in U.S.A.; Built in Canada
1997HondaCivicSi1.6LL4N/ABuilt in U.S.A.; Built in Canada
1996HondaAccord2.2LL4N/A
1996HondaAccord2.7LV6N/A
1996HondaCivicLX1.6LL4N/A
1996HondaCivicEX1.6LL4N/A
1996HondaCivicCX1.6LL4N/A
1996HondaCivicDX1.6LL4N/A
1996HondaCivicSi1.6LL4N/A
1995HondaAccord2.2LL4N/A
1995HondaAccord2.7LV6N/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:

1S176956490P0H013PSS30

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.