Dorman 318-123 Engine Control Module

Overview of Dorman 318-123 Engine Control Module for Jeep Grand Cherokee

The Dorman 318-123 Engine Control Module (ECM) is designed specifically for Jeep Grand Cherokee models, providing reliable engine management without the need for flash programming. This ECM features a compact design with precise connector and terminal specifications to ensure seamless integration with your vehicle's existing systems.

• Compatible with Jeep Grand Cherokee models
• Dimensions: 9 inches length, 6 inches width, 2 inches height
• Gray rectangular connectors with 3 connector ports
• 93 male terminals with pin-type connections
• Flash programming not required but module is flashable
• Mounting hardware not included; bolt-type switch mounting with 3 mounting holes
• Female connector gender for secure connection
• Package includes 1 powertrain control module

Detailed Product Description

The Dorman 318-123 ECM is engineered to meet the specific control requirements of Jeep Grand Cherokee vehicles. Its gray rectangular connectors and pin-type terminals provide a secure and reliable electrical interface, featuring 3 connectors and 93 terminals to handle complex engine control signals. The module measures 9 inches in length, 6 inches in width, and 2 inches in height, making it a compact yet robust component. Although flash programming is not required for installation, the module supports flashability for future updates or tuning. The female connector gender and male terminal gender ensure proper mating with the vehicle’s wiring harness. Mounting is facilitated by a bolt-type switch mounting system with 3 mounting holes, though mounting hardware is not included.

Common Applications and Issues Addressed

• Resolves engine performance issues related to faulty ECMs in Jeep Grand Cherokee
• Addresses engine stalling or misfiring caused by control module failure
• Fixes problems with engine starting and idle control
• Corrects diagnostic trouble codes related to powertrain control
• Improves overall engine management and fuel efficiency

Installation Notes and Tips

• Ensure vehicle battery is disconnected before ECM replacement to prevent electrical damage
• Verify connector orientation; the gray rectangular connectors and pin terminals must align correctly
• Use appropriate tools for bolt-type mounting; mounting hardware is not included
• After installation, perform a system check to confirm proper ECM communication with the vehicle
• Although flash programming is not required, verify if any software updates are recommended for your specific Jeep Grand Cherokee model

Quality Assurance and Warranty

Dorman manufactures the 318-123 ECM to meet OEM standards for durability and performance. This powertrain control module undergoes rigorous testing to ensure compatibility and reliability with Jeep Grand Cherokee vehicles. While specific warranty details should be confirmed at the point of purchase, Dorman typically offers a limited warranty covering defects in materials and workmanship.