Standard Ignition TCA-5 4WD Indicator Light Switch

4WD Indicator Light Switch for Front Axle Systems

Standard Ignition TCA-5 is a 4WD indicator light switch built for front axle applications that use a 2-pin terminal connection. It uses copper alloy conductors for strong electrical conductivity and low resistive loss, with a robust brass and plastic construction for service use.

Compatible With 1997 Chevrolet Suburban 1500, 1997 Chevrolet Tahoe, 1997 GMC K2500, 1997 GMC K3500, 1997 GMC Yukon, 1990 GMC S15 Jimmy, 1990 GMC V1500 Suburban, 1988-1989 GMC S15 Jimmy, 1983-1986 GMC S15 Jimmy, and 1989 GMC V1500 Suburban. Standard Ignition TCA-5 is a direct-fit electrical switch for front axle 4WD indicator circuits on these applications.

• White housing with brass and plastic finish
• Female connector with male blade terminals
• 2-terminal design for front axle switching circuits
• 100% tested for mechanical and electrical switching performance
• Built with copper alloy conductors for stable signal transfer

Detailed Product Overview

This 4WD indicator light switch monitors front axle engagement and sends the signal needed for the dash indicator circuit. It is a practical replacement for worn or intermittent axle-mounted switches on Chevrolet and GMC trucks and SUVs, including 1997 Chevrolet Tahoe and 1997 GMC Yukon applications. The TCA-5 part number is also searched as a replacement for OE-style front axle switch service on older GMC S15 Jimmy and V1500 Suburban models.

This part cross-references Dorman OE Solutions 600-503 for the same application.

Common Problems This Part Can Help Solve

• 4WD indicator light stays on or does not illuminate
• Intermittent front axle engagement signal
• Corroded or worn 2-pin switch terminals
• Electrical switching faults at the front axle
• Dash indicator mismatch after 4WD operation

Installation Notes and Tips

Verify the vehicle uses a front axle 2-pin terminal configuration before installation. Match the connector gender and terminal type to the original switch, and inspect the harness connector for corrosion, bent blades, or heat damage before connecting Standard Ignition TCA-5. Confirm proper 4WD indicator operation after installation.

Quality Assurance

Standard Ignition builds this switch with high-grade materials and tests each unit for mechanical and electrical performance. The design reflects long-term development focused on technician service needs and dependable electrical switching.