Standard Ignition DS-933 Headlight Dimmer Switch - Front

Headlight Dimmer Switch for GM Trucks and SUVs

Standard Ignition DS-933 is a new combination switch built for vehicles that need dependable lighting and wiper control in one assembly. It uses copper alloy conductors for strong electrical conductivity and low resistive loss, with 100% testing for mechanical and electrical switching performance.

Compatible With 1998-2005 Chevrolet Blazer, 1998-2004 Chevrolet S10, 1998-2005 GMC Jimmy, 1998-2004 GMC Sonoma, and 1998-2001 Oldsmobile Bravada applications with cruise control.

• Bolt-on attachment method
• 4-pin rectangular connector with male connector gender
• 34 blade terminals
• 12-volt electrical system
• Combination switch functions for turn signal, high beam, wiper delay, washer spray, and cruise control controls
• Includes latching high beam, momentary high beam flasher, indicator markings, and windshield wiper delay and speed settings

Detailed Product Overview

The Standard Ignition DS-933 is engineered as a headlight dimmer switch and combination switch for GM platforms that use integrated steering-column controls. It supports turn signal and directional indicator operation, high beam switching, windshield washer spray, windshield wiper delay, and windshield wiper speed control, along with cruise control cancel, on/off, resume, set, and speed adjustment functions. This part cross-references Dorman - HELP 2330833 and Four Seasons 55231 for the same application. Use DS-933 when servicing a Chevrolet Blazer, GMC Jimmy, GMC Sonoma, Chevrolet S10, or Oldsmobile Bravada with the listed cruise control configurations.

Common Problems This Part Can Address

• Intermittent or inoperative high beam switching
• Turn signal or directional indicator failure
• Wiper delay or wiper speed control issues
• Washer spray control problems at the steering column
• Cruise control switch functions that no longer respond correctly

Installation Notes and Tips

Verify connector style, terminal count, and vehicle equipment before installation. DS-933 uses a bolt-on mounting style with a rectangular 4-cavity connector, so matching the original switch layout is important for proper operation. Confirm cruise control and steering-column options on 1998-2005 Chevrolet Blazer, 1998-2004 GMC Jimmy, and related GM applications before replacement.

Quality Assurance

Standard Ignition builds this switch with durable materials and copper alloy conductors, then tests each unit for electrical and mechanical switching performance. The design reflects long-term development focused on service-professional requirements and consistent operation in daily repair use.