HomeElectrical, Lighting and Body > SwitchesStandard Ignition DS-203 Headlight Dimmer Switch
Part #: DS-203

Standard Ignition DS-203 Headlight Dimmer Switch

⚙️ 59 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Cadillac, Jeep, Chevrolet, Buick, Oldsmobile, and Pontiac, Commercial Chassis, DeVille, Fleetwood, Seville, Eldorado, Wrangler, Cherokee, Comanche, Wagoneer, Chevette, Corvette, Electra, Estate Wagon, LeSabre, Impala, 98, Delta 88, Bonneville, and Catalina
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Reliable Headlight Dimmer Switch for Select GM and Jeep Models

The Standard Ignition DS-203 headlight dimmer switch offers a durable and precise solution for controlling your vehicle's headlight functions. Designed for compatibility with various Buick, Cadillac, Chevrolet, Jeep, Oldsmobile, and Pontiac models, this switch ensures consistent performance and easy installation.

Key Features of the Standard Ignition DS-203

  • Bolt-on attachment method for secure dashboard mounting
  • Color combination includes brown, clear, and silver for easy identification
  • Single female rectangular connector for straightforward wiring
  • Four male blade terminals providing reliable electrical connections
  • Constructed with aluminum and plastic for durability and corrosion resistance
  • Operates on standard 12-volt electrical systems

Detailed Product Description

The DS-203 headlight dimmer switch from Standard Ignition is engineered to meet the electrical and lighting needs of classic and late-model vehicles including the Chevrolet Impala, Buick LeSabre, Cadillac DeVille, Jeep Cherokee, and Pontiac Bonneville. Its bolt-on design allows for easy replacement directly on the dashboard, maintaining factory fit and finish. The switch features a single female rectangular connector and four male blade terminals, ensuring compatibility with original wiring harnesses. The combination of aluminum and plastic materials provides a balance of strength and lightweight construction, suitable for the demanding environment of automotive electrical systems.

Common Applications and Issues Addressed

  • Restores proper headlight dimming function in Chevrolet Corvette and Cadillac Eldorado
  • Replaces faulty or worn dimmer switches causing intermittent headlight operation in Jeep Wrangler and Comanche
  • Eliminates dashboard switch failure symptoms in Pontiac Catalina and Oldsmobile Delta 88
  • Resolves electrical connection issues due to corroded or damaged terminals
  • Improves safety by ensuring reliable headlight control on Buick Fleetwood and Seville models

Installation Notes and Tips

  • Ensure vehicle battery is disconnected before installation to prevent electrical shorts
  • Locate the existing headlight dimmer switch on the dashboard for removal
  • Use appropriate tools to unbolt the old switch and disconnect the female rectangular connector
  • Verify the terminal blade connections match the DS-203 switch terminals before securing
  • After installation, test headlight dimming functions to confirm proper operation

Quality Assurance and Warranty Information

Standard Ignition manufactures the DS-203 headlight dimmer switch to meet OEM specifications, ensuring reliable performance and fitment. The switch is backed by a limited warranty covering defects in materials and workmanship, providing confidence in its durability and function for compatible Buick, Cadillac, Chevrolet, Jeep, Oldsmobile, and Pontiac vehicles.

BrandStandard Ignition
Part NumberDS-203
Attachment MethodBolt On
ColorBrown, Clear, Silver
Connector GenderFemale
Connector ShapeRectangular
FinishAluminum, Plastic
Mounting LocationDashboard
Terminal GenderMale
Terminal TypeBlade
Voltage12

This part fits 59 vehicles. Search below:

YearMakeModelPositionNotes
1996CadillacCommercial ChassisN/A
1996CadillacDeVilleN/Aw/ Floor Console
1996CadillacFleetwoodN/A
1996CadillacSevilleN/Aw/ Floor Console
1995CadillacCommercial ChassisN/A
1995CadillacDeVilleN/Aw/ Floor Console
1995CadillacEldoradoN/Aw/ Floor Console
1995CadillacFleetwoodN/A
1995CadillacSevilleN/Aw/ Floor Console
1995JeepWranglerN/A
1994CadillacCommercial ChassisN/A
1994CadillacDeVilleN/Aw/ Floor Console
1994CadillacEldoradoN/Aw/ Floor Console
1994CadillacFleetwoodN/A
1994CadillacSevilleN/Aw/ Floor Console
1994JeepWranglerN/A
1993CadillacEldoradoN/Aw/ Floor Console
1993CadillacSevilleN/Aw/ Floor Console
1993JeepCherokeeN/A
1993JeepWranglerN/A
1992CadillacEldoradoN/Aw/ Floor Console
1992CadillacSevilleN/Aw/ Floor Console; w/ Auto. Dimmer
1992JeepCherokeeN/A
1992JeepComancheN/A
1992JeepWranglerN/A
1991JeepCherokeeN/A
1991JeepComancheN/A
1991JeepWranglerN/A
1990JeepCherokeeN/A
1990JeepComancheN/A
1990JeepWagoneerN/A
1990JeepWranglerN/A
1989JeepCherokeeN/A
1989JeepComancheN/A
1989JeepWagoneerN/A
1989JeepWranglerN/A
1988JeepCherokeeN/A
1988JeepComancheN/A
1988JeepWagoneerN/A
1988JeepWranglerN/A
1987JeepCherokeeN/AColumn Mounted - fits vehicles with headlight dimmer switch located on the steering column
1987JeepComancheN/A
1987JeepWagoneerN/A
1987JeepWranglerN/A
1986JeepComancheN/A
1986JeepWagoneerN/A
1985JeepWagoneerN/A
1984JeepWagoneerN/AColumn Mounted - fits vehicles with headlight dimmer switch located on the steering column
1979ChevroletChevetteN/ANot compatible with vehicles equipped with a Tilt Wheel.
1978ChevroletChevetteN/A
1978ChevroletCorvetteN/A
1977BuickLeSabreN/AColumn Mounted - fits vehicles with headlight dimmer switch located on the steering column
1977ChevroletChevetteN/A
1977ChevroletCorvetteN/A
1977ChevroletImpalaN/A
1977Oldsmobile98N/AColumn Mounted - fits vehicles with headlight dimmer switch located on the steering column
1977OldsmobileDelta 88N/AColumn Mounted - fits vehicles with headlight dimmer switch located on the steering column
1977PontiacBonnevilleN/A
1977PontiacCatalinaN/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:

1S4833260352373-81453-16977560034067819567DS117DS144DS150J3239703UDS423

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