HomeEngine > Control ModulesDorman 318-122 Engine Control Module
Part #: 318-122

Dorman 318-122 Engine Control Module

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⚙️ 1 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Jeep, Grand Cherokee
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Overview of the Dorman 318-122 Engine Control Module

The Dorman 318-122 Engine Control Module (ECM) is designed specifically for Jeep Grand Cherokee models, providing reliable engine management without the need for flash programming. This powertrain control module offers a precise fit and essential functionality to maintain optimal vehicle performance.

  • Compatible with Jeep Grand Cherokee vehicles
  • Dimensions: 9 inches length, 6 inches width, 2 inches height
  • Gray rectangular connectors with 3 connector ports
  • 96 male terminals with pin-type connections
  • Flashable ECM with no flash programming required
  • Mounting hardware not included; bolt-type switch mounting with 3 mounting holes
  • Female connector gender for secure wiring harness connection

Detailed Product Description

The Dorman 318-122 ECM is engineered to meet the specific control requirements of Jeep Grand Cherokee engines. Its compact size (9" x 6" x 2") and gray rectangular connectors with three ports ensure a seamless integration into the vehicle's existing wiring system. Featuring 96 male pin terminals, this engine control module supports precise signal transmission and communication with the vehicle’s sensors and actuators. The module is flashable, allowing for software updates without the need for initial flash programming, simplifying installation and maintenance.

Common Applications and Problem Resolution

This engine control module is used to regulate engine functions and optimize performance in Jeep Grand Cherokee models. It addresses several common issues, including:

  • Engine misfires and rough idling
  • Check engine light activation due to ECM faults
  • Poor fuel efficiency and throttle response
  • Starting difficulties related to control module failure
  • Communication errors between engine sensors and the vehicle’s computer system

Installation Notes and Tips

Installation of the Dorman 318-122 ECM requires careful handling to avoid damage to the pin terminals and connectors. Since mounting hardware is not included, ensure you have the appropriate bolts for the bolt-type switch mounting with three mounting holes. The female connector design facilitates a secure connection to the vehicle’s wiring harness, which is not included. No flash programming is required before installation, but the module is flashable for future updates if necessary.

Quality Assurance and Warranty

Dorman provides this engine control module with a focus on durability and compatibility for Jeep Grand Cherokee vehicles. The 318-122 part number undergoes rigorous testing to meet OEM standards. While specific warranty details are not provided here, Dorman typically offers limited warranties on their control modules to ensure customer confidence in product reliability.

BrandDorman
Part Number318-122
Connector ColorGray
Connector GenderFemale
Connector Quantity3
Connector ShapeRectangle
Flash Programming RequiredNo
FlashableYes
Height2
Length9
Mounting Hardware IncludedNo
Mounting Hole Quantity3
Package Contents1 Powertrain Control Module
Removable PROMNo
Switch Mounting TypeBolt
Terminal GenderMale
Terminal Quantity96
Terminal TypePin
Width6
Wire Harness IncludedNo

This part fits 1 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003JeepGrand Cherokee4.0LL6N/APre-Programmed Unit; VIN And Mileage Required To Order

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

56044632AB79-4633VECC12303

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.