Standard Ignition PSS59 Power Steering Pressure Switch

Power Steering Pressure Switch Overview

The Standard Ignition PSS59 power steering pressure switch is a direct-fit OE replacement for vehicles that use a 2-terminal blade-style switch with a female connector and male terminals. It is built with metal and plastic construction and a black finish for dependable service in demanding underhood conditions.

Compatible With 2000-2003 Ford Focus, 2001-2007 Ford Escape, 2005-2007 Mercury Mariner, and 2001-2006 Mazda Tribute applications, this switch supports accurate pressure signaling in the steering system. The Standard Ignition PSS59 is a practical choice when replacing a worn or failed power steering pressure switch on Ford, Mercury, and Mazda platforms.

Key Features

• Direct-fit OE replacement for straightforward installation
• Black metal and plastic housing for everyday durability
• Female connector with male blade terminals
• 2-terminal design for the specified application
• Built and tested under Standard Ignition quality control processes

Detailed Description

The PSS59 power steering pressure switch is engineered to match OE fit and function for select Ford Focus, Ford Escape, Mercury Mariner, and Mazda Tribute models. It helps the steering system communicate pressure changes to the vehicle’s control strategy, supporting proper idle and steering response behavior where this switch is used. Standard Ignition manufactures this part with controlled production standards and extensive testing to help maintain consistent performance.

This part cross-references Standard Ignition PSS8 and T Series PSS59T for the same application.

Common Replacement Symptoms

• Erratic idle speed when turning the steering wheel
• Power steering pressure switch fault codes
• Hard steering-related drivability complaints
• Intermittent steering load signal issues
• Failed or damaged original switch connector interface

Installation Notes and Tips

• Verify connector style, terminal count, and thread specification before installation.
• For 2000-2003 Ford Focus applications, confirm the M12 x 1.75 thread requirement.
• Inspect the harness connector for corrosion or spread terminals before fitting the new switch.
• Clear any stored diagnostic trouble codes after replacement if required by the vehicle.

Quality Assurance

Standard Ignition backs this power steering pressure switch with OE-style fitment, controlled manufacturing, and testing focused on reliability in real-world operating conditions.