Standard Ignition PSS43 Power Steering Pressure Switch

Power Steering Pressure Switch for Ford and Mercury

Standard Ignition PSS43 is a screw-in power steering pressure switch built for vehicles that need accurate steering-system signal input. It uses a black and gold housing with brass and plastic construction, a female connector, and a 2-blade male terminal layout for straightforward electrical connection.

Compatible With 1997-2012 Ford, Lincoln, and Mercury applications, including Ford Fusion, Mercury Milan, Lincoln Zephyr, Ford Thunderbird, Lincoln LS, Ford Contour, Mercury Mystique, and Mercury Tracer.

Key Features

• Power steering pressure switch for steering system signal control
• Screw-in mounting type for direct replacement installation
• Female connector with 2 male blade terminals
• Brass and plastic finish for service-focused durability
• Copper alloy conductors for strong electrical conductivity and low resistive loss
• 100% tested for mechanical and electrical switching performance
• Standard Ignition PSS43 for select Ford, Lincoln, and Mercury vehicles

Detailed Description

Standard Ignition PSS43 is engineered for power steering pressure monitoring in select Ford, Lincoln, and Mercury models. The switch uses copper alloy conductors to maintain reliable electrical transfer, while the robust screw-in design supports secure mounting in the steering system. Standard Ignition builds this part with service-grade materials and verifies switching performance through full mechanical and electrical testing. This part cross-references 1S6910 and PS112 for the same application.

Use PSS43 when servicing a Ford Fusion, Mercury Milan, or Lincoln Zephyr with a failed steering pressure signal, or when diagnosing steering-related idle changes and pressure-switch faults on Ford Thunderbird, Lincoln LS, Ford Contour, Mercury Mystique, and Mercury Tracer applications.

What This Part Helps Solve

• Erratic idle behavior when steering load changes
• Power steering pressure switch electrical faults
• Intermittent steering-system signal loss
• Warning lights or drivability issues tied to steering pressure input
• Hard-to-diagnose steering-related control problems

Installation Notes and Tips

Verify connector style, terminal count, and screw-in mounting before installation. Inspect the harness terminals for corrosion or looseness, and confirm the replacement switch matches the original electrical interface. On Ford Fusion, Mercury Milan, and Lincoln Zephyr applications, compare the old unit to PSS43 before threading it into place.

Quality Assurance

Standard Ignition uses high-grade materials, copper alloy conductors, and full functional testing to confirm mechanical and electrical switching performance. The PSS43 is built to meet the demands of professional service work.

Compatible Vehicles

• Fits 2006-2012 Ford Fusion, N/A
• Fits 2006-2009 Mercury Milan, N/A
• Fits 2006 Lincoln Zephyr, N/A
• Fits 2002-2005 Ford Thunderbird, N/A
• Fits 2001-2002 Lincoln LS, N/A
• Fits 1999-2000 Ford Contour, N/A
• Fits 1998-2000 Mercury Mystique, N/A
• Fits 1997-1999 Mercury Tracer, N/A