Dorman 318-122 engine control module (ecm) for the 2003 Jeep Grand Cherokee 6-cylinder 4.0L reads inputs from various sensors to control the engine's ignition and fueling. This remanufactured unit is also known as a powertrain control module.
- Remanufactured and tested in a dedicated facility for durability
- Fully tested for functionality, including hot and cold chamber testing
- Flashable module with no removable PROM
Quick facts
- Part: Dorman 318-122 engine control module (ecm)
- Fits: 2003 Jeep Grand Cherokee 6-cylinder 4.0L
- Condition: Remanufactured
Hard starting, stalling or a check engine light can mean the module is failing. These signs alone do not prove it, though; a faulty sensor is another common cause. If a failed module is the cause, this one replaces it.
Fits
This engine control module is a direct-fit replacement for the 2003 Jeep Grand Cherokee 6-cylinder 4.0L, which takes one. It is tested to meet original equipment performance.
Specifications
Fit and size
- Quantity per vehicle: 1
- Mounting holes: 3
- Terminal quantity: 96
- Connector quantity: 3
Build and materials
- Condition: Remanufactured
- Terminal type: pin (male)
- Connectors: rectangle, gray, female
- Country of origin: United States
In the box
One engine control module (ecm). The wire harness and mounting hardware are not included, so plan on new mounting hardware, since the old pieces may not be reusable.
Installation notes
- Flash programming is not required.
Interchange: 79-4633V
ECC12303 · 56044632AB · 56044632AC · 56044632AD · 56044632AE · R6044632AE
This part cross-references / interchanges with the following part numbers:
ECC12303, 79-4633V, 56044632AB, 56044632AC, 56044632AD, 56044632AE, R6044632AE
Frequently Asked Questions
Is the Dorman 318-122 the right engine control module for the 2003 Jeep Grand Cherokee 6-cylinder 4.0L?
Yes. Dorman 318-122 is listed for the 2003 Jeep Grand Cherokee 6-cylinder 4.0L, which takes one.
Does the Dorman 318-122 come with a wire harness or mounting hardware?
No. Dorman 318-122 comes as one engine control module; the wire harness and mounting hardware are not included.
How many terminals does this engine control module have?
This module has 96 pin terminals spread across three connectors.
Does this engine control module need flash programming?
No. Flash programming is not required, though the module is flashable and has no removable PROM.
How is this remanufactured engine control module tested?
It is remanufactured and tested in a dedicated facility, including a full functionality test with hot and cold chamber testing.
