HomeElectrical, Lighting and Body > Electrical ConnectorsStandard Ignition S-1256 Door Ajar Switch Connector - Front Left or Front Right
Part #: S-1256

Standard Ignition S-1256 Door Ajar Switch Connector - Front Left or Front Right

Front Right and Front Left
173 vehicles fit this part
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Fitment: Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Saab, 9-7x, Avalanche 1500, Avalanche 2500, Blazer, Bravada, Envoy, Envoy XL, Envoy XUV, Escalade, Escalade ESV, Escalade EXT, Rainier, S10, Sierra 1500, Sierra 1500 HD, Sierra 1500 HD Classic, Sierra 2500, Sierra 2500 HD, Sierra 3500, Sierra 3500 Classic, Sierra 3500 HD, Silverado 1500, Silverado 1500 HD, Silverado 1500 HD Classic, Silverado 2500, Silverado 2500 HD, Silverado 3500, Silverado 3500 HD, SSR, Suburban 1500, Suburban 2500, Tahoe, Trailblazer, Trailblazer EXT, Yukon, Yukon XL 1500, and Yukon XL 2500
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Door Ajar Switch Connector for GM Applications

Standard Ignition S-1256 is a door ajar switch connector built for electrical repair work where a damaged factory connector can interrupt signal flow. It uses high-grade materials for reliable conductivity and a secure connection, making it a practical choice for GM truck and SUV repairs.

Compatible With select Chevrolet Silverado, GMC Sierra, Chevrolet Trailblazer, GMC Envoy, Cadillac Escalade, and related applications across 1995-2009 model years, depending on connector style and position. Standard Ignition S-1256 is engineered for technicians who need a direct-fit electrical connector solution for common body and interior circuit repairs.

Key Features

  • Door ajar switch connector for electrical connector repair
  • Male connector gender with female pin-socket terminals
  • 2-wire design with 16-inch harness length
  • Includes butt splices for wire repair connections
  • Built with materials selected to support consistent conductivity
  • Standard Ignition S-1256 for service on GM and Saab applications

Detailed Description

This Standard Ignition S-1256 connector is designed for replacing a failed or damaged door ajar switch connector in vehicles that use a 2-terminal electrical interface. It is also used across multiple GM body and seat-related connector applications, including Chevrolet Silverado, GMC Sierra, Chevrolet Trailblazer, GMC Envoy, and Cadillac Escalade platforms. The harness length and terminal layout support repair work where the original connector has heat damage, broken locking tabs, corrosion, or terminal wear.

This part cross-references FEL-PRO 1243 for the same application. Standard Ignition S-1256 is a service-focused connector solution for technicians working on GM electrical connector repairs.

Common Repair Uses

  • Broken or loose door ajar switch connector terminals
  • Corroded or heat-damaged wiring at the connector body
  • Intermittent door-ajar warning or body circuit signal loss
  • Damaged connector housing from prior electrical service
  • Failed 2-terminal connector on GM truck and SUV harnesses

Installation Notes and Tips

  • Verify connector gender, terminal style, and wire count before installation.
  • Match the vehicle’s original connector color, terminal layout, and position notes where listed.
  • Use proper splice and crimp practices when joining the harness leads.
  • Inspect the mating switch or harness side for corrosion or terminal spread before reconnecting.
  • Confirm fitment by year, make, model, and application notes for Chevrolet Silverado, GMC Sierra, Chevrolet Trailblazer, and GMC Envoy.

Quality Assurance

Standard Ignition builds its pigtails and sockets with high-grade materials and application-focused engineering to support dependable electrical repair. The brand’s long-running development in electrical service parts is reflected in the S-1256 connector design for technician-grade repairs.

BrandStandard Ignition
Part NumberS-1256
Connector GenderMale
Connector Quantity1
ContentsIncludes butt splices
Harness Length - inches16"
Terminal GenderFemale
Terminal Quantity2
Terminal TypePin socket
Wire Quantity2

This part fits 173 vehicles. Search below:

YearMakeModelPositionNotes
2009ChevroletTrailblazerN/APurple; Multiple Connectors Required; 2 Term.
2009GMCEnvoyN/APurple; Multiple Connectors Required; 2 Term.; Front
2009Saab9-7xN/APurple; Multiple Connectors Required
2008ChevroletTrailblazerN/A2-terminal white female power seat harness connector
2008ChevroletTrailblazerN/APurple; Multiple Connectors Required; 2 Term.
2008GMCEnvoyN/A2-terminal white female power seat harness connector
2008GMCEnvoyN/APurple; Multiple Connectors Required; 2 Term.; Front
2008Saab9-7xN/APurple; Multiple Connectors Required
2007BuickRainierN/A2-terminal white female power seat harness connector
2007BuickRainierN/Aw/ Latch Assembly; Multiple Connectors Required; Gray; Front
2007ChevroletSilverado 1500N/A
2007ChevroletSilverado 1500 HD ClassicN/A
2007ChevroletSilverado 2500 HDN/A
2007ChevroletSilverado 3500N/A
2007ChevroletSilverado 3500 HDN/A
2007ChevroletTrailblazerN/A2-terminal white female power seat harness connector
2007ChevroletTrailblazerN/APurple; Multiple Connectors Required; 2 Term.
2007GMCEnvoyN/A2-terminal white female power seat harness connector
2007GMCEnvoyN/APurple; Multiple Connectors Required; 2 Term.; Front
2007GMCSierra 1500N/A
2007GMCSierra 1500 HD ClassicN/A
2007GMCSierra 2500 HDN/A
2007GMCSierra 3500 ClassicN/A
2007GMCSierra 3500 HDN/A
2007Saab9-7xN/APurple; Multiple Connectors Required
2006BuickRainierN/A2-terminal white female power seat harness connector
2006BuickRainierN/Aw/ Latch Assembly; Multiple Connectors Required; Gray; Front
2006CadillacEscaladeN/A
2006CadillacEscalade ESVN/A
2006CadillacEscalade EXTN/A
2006ChevroletAvalanche 1500N/A
2006ChevroletAvalanche 2500N/A
2006ChevroletSilverado 1500N/A
2006ChevroletSilverado 1500 HDN/A
2006ChevroletSilverado 2500 HDN/A
2006ChevroletSilverado 3500N/A
2006ChevroletSSRN/A2-terminal white female power seat harness connector
2006ChevroletSSRN/AWhite; 2 Term. Female; Front
2006ChevroletSuburban 1500N/A
2006ChevroletSuburban 2500N/A
2006ChevroletTahoeN/A
2006ChevroletTrailblazerN/A2-terminal white female power seat harness connector
2006ChevroletTrailblazerN/APurple; Multiple Connectors Required; 2 Term.
2006ChevroletTrailblazer EXTN/A2-terminal white female power seat harness connector
2006ChevroletTrailblazer EXTN/APurple; Multiple Connectors Required; Front
2006GMCEnvoyN/A2-terminal white female power seat harness connector
2006GMCEnvoyN/APurple; Multiple Connectors Required; 2 Term.; Front
2006GMCEnvoyN/A
2006GMCEnvoy XLN/A2-terminal white female power seat harness connector
2006GMCEnvoy XLN/APurple; Multiple Connectors Required; 2 Term.; Front
2006GMCEnvoy XLN/A
2006GMCSierra 1500N/A
2006GMCSierra 1500 HDN/A
2006GMCSierra 2500 HDN/A
2006GMCSierra 3500N/A
2006GMCYukonN/A
2006GMCYukon XL 1500N/A
2006GMCYukon XL 2500N/A
2006Saab9-7xN/APurple; Multiple Connectors Required
2005BuickRainierN/A2-terminal white female power seat harness connector
2005BuickRainierN/Aw/ Latch Assembly; Multiple Connectors Required; Gray; Front
2005CadillacEscaladeN/A2-terminal white female power seat harness connector
2005CadillacEscalade ESVN/A2-terminal white female power seat harness connector
2005CadillacEscalade EXTN/A2-terminal white female power seat harness connector
2005ChevroletAvalanche 1500N/A
2005ChevroletAvalanche 2500N/A
2005ChevroletSilverado 1500N/A
2005ChevroletSilverado 1500 HDN/A
2005ChevroletSilverado 2500 HDN/A
2005ChevroletSilverado 3500N/A
2005ChevroletSSRN/AWhite; 2 Term. Female; Front
2005ChevroletSuburban 1500N/A
2005ChevroletSuburban 2500N/A
2005ChevroletTahoeN/A
2005ChevroletTrailblazerN/A2-terminal white female power seat harness connector
2005ChevroletTrailblazer EXTN/A2-terminal white female power seat harness connector
2005GMCEnvoyN/A2-terminal white female power seat harness connector
2005GMCEnvoy XLN/A2-terminal white female power seat harness connector
2005GMCEnvoy XUVN/A2-terminal white female power seat harness connector
2005GMCSierra 1500N/A2-terminal white female power seat harness connector
2005GMCSierra 1500 HDN/A2-terminal white female power seat harness connector
2005GMCSierra 2500 HDN/A2-terminal white female power seat harness connector
2005GMCSierra 3500N/A2-terminal white female power seat harness connector
2005GMCYukonN/A2-terminal white female power seat harness connector
2005GMCYukon XL 1500N/A2-terminal white female power seat harness connector
2005GMCYukon XL 2500N/A2-terminal white female power seat harness connector
2005Saab9-7xN/Aw/ Keyless Entry; Purple; Multiple Connectors Required; Front
2004BuickRainierN/A2-terminal white female power seat harness connector
2004BuickRainierN/Aw/ Latch Assembly; Multiple Connectors Required; Gray; Front
2004CadillacEscaladeN/A2-terminal white female power seat harness connector
2004CadillacEscalade ESVN/A2-terminal white female power seat harness connector
2004CadillacEscalade EXTN/A2-terminal white female power seat harness connector
2004ChevroletAvalanche 1500N/A
2004ChevroletAvalanche 2500N/A
2004ChevroletSilverado 1500N/A2-terminal white female power seat harness connector
2004ChevroletSilverado 1500N/A
2004ChevroletSilverado 2500N/A
2004ChevroletSilverado 2500 HDN/A
2004ChevroletSilverado 3500N/A
2004ChevroletSSRN/AWhite; 2 Term. Female; Front
2004ChevroletSuburban 1500N/A
2004ChevroletSuburban 2500N/A
2004ChevroletTahoeN/A
2004ChevroletTrailblazerN/A2-terminal white female power seat harness connector
2004ChevroletTrailblazer EXTN/A2-terminal white female power seat harness connector
2004GMCEnvoyN/A2-terminal white female power seat harness connector
2004GMCEnvoy XLN/A2-terminal white female power seat harness connector
2004GMCEnvoy XUVN/A2-terminal white female power seat harness connector
2004GMCSierra 1500N/A2-terminal white female power seat harness connector
2004GMCSierra 2500N/A2-terminal white female power seat harness connector
2004GMCSierra 2500 HDN/A2-terminal white female power seat harness connector
2004GMCSierra 3500N/A2-terminal white female power seat harness connector
2004GMCYukonN/A2-terminal white female power seat harness connector
2004GMCYukon XL 1500N/A2-terminal white female power seat harness connector
2004GMCYukon XL 2500N/A2-terminal white female power seat harness connector
2004OldsmobileBravadaN/A2-terminal white female power seat harness connector
2003CadillacEscaladeN/A2-terminal white female power seat harness connector
2003CadillacEscalade ESVN/A2-terminal white female power seat harness connector
2003CadillacEscalade EXTN/A2-terminal white female power seat harness connector
2003ChevroletAvalanche 1500N/A
2003ChevroletAvalanche 2500N/A
2003ChevroletBlazerFront Rightw/o Remote Entry Lock Control; w/ Latch Assembly; Purple; Multiple Connectors Required; 2 Term.
2003ChevroletS10Front Right2-terminal white female power seat harness connector
2003ChevroletSilverado 1500N/A
2003ChevroletSilverado 1500 HDN/A
2003ChevroletSilverado 2500N/A
2003ChevroletSilverado 2500 HDN/A
2003ChevroletSilverado 3500N/A
2003ChevroletSSRN/AWhite; 2 Term. Female; Front
2003ChevroletSuburban 1500N/A
2003ChevroletSuburban 2500N/A
2003ChevroletTahoeN/A
2003ChevroletTrailblazerN/A2-terminal white female power seat harness connector
2003ChevroletTrailblazer EXTN/A2-terminal white female power seat harness connector
2003GMCEnvoyN/A2-terminal white female power seat harness connector
2003GMCEnvoy XLN/A2-terminal white female power seat harness connector
2003GMCSierra 1500N/A2-terminal white female power seat harness connector
2003GMCSierra 1500N/A
2003GMCSierra 1500 HDN/A2-terminal white female power seat harness connector
2003GMCSierra 1500 HDN/A
2003GMCSierra 2500N/A2-terminal white female power seat harness connector
2003GMCSierra 2500N/A
2003GMCSierra 2500 HDN/A2-terminal white female power seat harness connector
2003GMCSierra 2500 HDN/A
2003GMCSierra 3500N/A2-terminal white female power seat harness connector
2003GMCSierra 3500N/A
2003GMCYukonN/A2-terminal white female power seat harness connector
2003GMCYukon XL 1500N/A2-terminal white female power seat harness connector
2003GMCYukon XL 2500N/A2-terminal white female power seat harness connector
2003OldsmobileBravadaN/A2-terminal white female power seat harness connector
2002ChevroletS10Front Right2-terminal white female power seat harness connector
2002ChevroletTrailblazerN/A2-terminal white female power seat harness connector
2002ChevroletTrailblazer EXTN/A2-terminal white female power seat harness connector
2002GMCEnvoyN/A2-terminal white female power seat harness connector
2002GMCEnvoy XLN/A2-terminal white female power seat harness connector
2002OldsmobileBravadaN/A2-terminal white female power seat harness connector
2001ChevroletBlazerFront Rightw/o Remote Entry Lock Control; Purple; Multiple Connectors Required; 2 Term.
2001ChevroletS10Front Right2-terminal white female power seat harness connector
2000ChevroletBlazerFront Rightw/o Remote Entry Lock Control; Purple; Multiple Connectors Required; 2 Term.
2000ChevroletS10Front Right2-terminal white female power seat harness connector
1999ChevroletBlazerFront Rightw/o Remote Entry Lock Control; Purple; Multiple Connectors Required; 2 Term.
1999ChevroletS10Front Right2-terminal white female power seat harness connector
1999ChevroletSilverado 1500Front Left2-terminal white female power seat harness connector
1999ChevroletSilverado 1500Front Right2-terminal white female power seat harness connector
1999ChevroletSuburban 1500Front RightMultiple Connectors Required
1998ChevroletBlazerFront Rightw/o Remote Entry Lock Control; Purple; Multiple Connectors Required; 2 Term.
1998ChevroletS10Front Right2-terminal white female power seat harness connector
1997ChevroletBlazerFront RightPurple; Multiple Connectors Required
1997ChevroletS10Front Right2-terminal white female power seat harness connector
1996ChevroletBlazerFront Rightw/ Latch Assembly; Purple; Multiple Connectors Required
1996ChevroletS10Front Right2-terminal white female power seat harness connector
1995ChevroletBlazerFront Rightw/ Latch Assembly; Purple; Multiple Connectors Required
1995ChevroletS10Front Right2-terminal white female power seat harness connector

* 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:

1243153064061P1875EC753PT1332PTA2362

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