Standard Ignition LX-859 Ignition Control Module

Ignition Control Module for Lexus and Toyota

Standard Ignition LX-859 is a distributorless ignition control module for select Lexus and Toyota applications. It uses a remote, bolt-on mounting design with a single female connector, 10 terminals, and 12-volt operation for direct replacement service on covered vehicles.

Key Features

• Distributorless ignition type
• Remote mounting location with bolt-on attachment method
• 1 female connector with 10 male blade terminals
• 12-volt electrical design
• Coil not included
• Mounting hardware, bracket(s), grease pack, and instructions not included

Detailed Product Overview

Standard Ignition LX-859 is built for ignition system service where the control module is mounted remotely from the coil. It is a direct-fit style part for 1998-2004 Lexus GS300, 2001-2003 Lexus IS300, 1998-2000 Lexus SC300, 1998-2000 Lexus SC400, and 1998 Toyota Supra applications, including 2004 Lexus GS300 to 2/04. This part number, LX-859, also cross-references 6H1147 for the same application.

Common Issues Addressed

• Engine no-start caused by ignition control failure
• Intermittent spark loss in distributorless ignition systems
• Rough running from unstable ignition triggering
• Misfire conditions related to module signal interruption
• Stalling or hesitation tied to ignition control faults

Installation Notes and Tips

• Verify connector style, terminal count, and remote mounting location before installation.
• Inspect the harness and terminals for corrosion, heat damage, or looseness.
• Confirm the coil is serviceable, since the coil is not included with this module.
• Match the vehicle application carefully for Lexus GS300, IS300, SC300, SC400, and Toyota Supra coverage.

Quality Assurance

Standard Ignition supplies replacement ignition components for professional repair use. LX-859 is specified for distributorless ignition service and is listed with confirmed vehicle fitment for 1998-2004 Lexus and Toyota applications.