Chrysler Engine Control Units – ECU, ECM and PCM

Chrysler Engine Control Unit – ECU, ECM and PCM

A Chrysler engine control unit manages the operation of the engine and communicates with other electronic systems in the vehicle. Depending on the model and generation, the module may be described as ECU, ECM, PCM, engine computer or powertrain control module.

Customers commonly search for these parts using phrases such as:

• Chrysler ECU,
• Chrysler PCM,
• Chrysler engine computer,
• Chrysler engine control module,
• Chrysler ECM,
• Chrysler 300C ECU,
• Chrysler PT Cruiser ECU,
• Chrysler Bosch ECU,
• Chrysler Motorola PCM.

Regardless of terminology, the safest method of identification is to use the complete numbers printed on the original module.

How to choose the correct Chrysler ECU

Chrysler vehicles can use several different engine-controller versions within the same model range. The engine capacity or vehicle model alone is therefore not sufficient to confirm compatibility.

Before ordering, compare:

• complete Chrysler / Mopar part number,
• Bosch, Motorola or other manufacturer number,
• all suffix letters,
• additional software or calibration codes,
• engine type,
• vehicle model,
• production year as supporting information.

Similar housings and identical connectors do not automatically mean that two Chrysler ECUs are interchangeable.

Chrysler Mopar ECU numbers – P050, P051 and P560

Many Chrysler engine controllers use characteristic Mopar references beginning with:

• P050...,
• P051...,
• P560....

Examples found in the catalogue include:

• P05149117AA,
• P05149119AC,
• P05149122AC,
• P05149122AD,
• P05187641AB,
• P05034035AB,
• P05033174AA,
• P56044221AE.

The prefix alone is not enough. The complete number including the final letters must be checked.

Why the final Mopar letters matter

Chrysler part numbers often end in letters such as AA, AB, AC, AD or AE. These letters form part of the complete reference.

For example, the catalogue contains Chrysler 300C controllers with the same Bosch number 0281013901 but different Mopar references:

• P05149122AC,
• P05149122AD.

Because the Mopar suffix changes, these units should not automatically be considered identical or interchangeable.

Chrysler 300C 3.0 CRD – Bosch 0281013901 / P05149122AC

One confirmed product is the Chrysler 300C 3.0 CRD ECU Bosch 0281013901 / P05149122AC / AE3D4A.

The important references are:

• Bosch 0 281 013 901,
• 0281013901,
• P05149122AC,
• AE3D4A.

Using both the Bosch and Mopar numbers gives a more accurate identification than searching only for a Chrysler 300C 3.0 CRD engine computer.

Chrysler 300C – P05149122AC vs P05149122AD

The catalogue also contains a Chrysler 300C ECU 0281013901 / P05149122AD / AE3D4A.

Compare:

• 0281013901 / P05149122AC / AE3D4A,
• 0281013901 / P05149122AD / AE3D4A.

The Bosch number is the same, but the Mopar suffix is different. For this reason, the entire original ECU label should be compared before purchase.

Chrysler 300C 3.0 CRD – Bosch 0281013771 / P05149119AC

Another Chrysler 300C 3.0 CRD controller listed in the catalogue uses:

• Bosch 0 281 013 771,
• 0281013771,
• P05149119AC.

This is a different reference family from 0281013901 / P05149122AC and should be treated as a separate ECU version.

Chrysler PT Cruiser 2.2 CRD – Bosch 0281011410 / P05034035AB

For selected Chrysler PT Cruiser 2.2 CRD applications, the catalogue includes the Bosch ECU 0281011410 / P05034035AB.

The key numbers are:

• Bosch 0 281 011 410,
• 0281011410,
• P05034035AB.

This combination is a useful long-tail search term for customers looking specifically for a Chrysler PT Cruiser 2.2 CRD engine controller.

Chrysler PT Cruiser 1.6 – P05033174AA / S118013001D

The catalogue also includes a Chrysler Cruiser 1.6 ECU with the references:

• P05033174AA,
• S118013001D.

This unit belongs to a different electronics family from the Bosch diesel controllers, demonstrating why Chrysler ECUs should be identified by numbers rather than by model name alone.

Chrysler 3.7 – Motorola P56044221AE

Chrysler petrol applications can also use Motorola engine controllers. One example is the Chrysler 3.7 Motorola PCM P56044221AE / 56044221AE / FBKEA.

Important markings include:

• P56044221AE,
• 56044221AE,
• 932180,
• FBKEA.

The Motorola and Mopar references should be compared together whenever possible.

Bosch Chrysler engine control units

Bosch supplied many diesel engine controllers used in Chrysler vehicles.

Current catalogue examples include Bosch numbers such as:

• 0281011093,
• 0281011410,
• 0281013380,
• 0281013771,
• 0281013901,
• 0281014788.

These all belong to different controller versions. A shared 028101... prefix does not indicate compatibility.

Chrysler ECU 0281013380 / P05149117AA

Another confirmed unit is the Chrysler Bosch ECU 0281013380 / P05149117AA.

The main identification numbers are:

• 0281013380,
• P05149117AA.

Before ordering, these references should be compared with the original controller label.

Motorola Chrysler PCM modules

Motorola controllers are common on selected Chrysler petrol applications and often use Mopar references beginning with P560....

Examples from the catalogue include:

• P56044221AE,
• P56041895AF.

These references should be used in full, including the final revision letters.

Common symptoms of a Chrysler ECU problem

Possible symptoms of an engine-controller fault may include:

• engine will not start,
• intermittent starting problems,
• loss of diagnostic communication,
• limp mode,
• reduced engine power,
• engine stalling,
• internal ECU fault codes,
• missing control of a specific engine circuit.

These symptoms do not automatically confirm that the Chrysler ECU itself is faulty.

No communication with the Chrysler ECU

If diagnostic equipment cannot communicate with the engine controller, check:

• ECU power supply,
• ground connections,
• fuses and relays,
• electrical connectors,
• damaged or corroded pins,
• CAN communication wiring,
• vehicle battery voltage.

A wiring or power-supply problem can cause the same no-communication symptom as an internally damaged controller.

Does a used Chrysler ECU require programming?

There is no single replacement procedure for every Chrysler ECU or PCM.

Depending on the controller and vehicle, possible options may include:

• a locked used ECU containing data from the previous vehicle,
• preparation for programming,
• immobiliser-related synchronisation,
• VIN or configuration programming,
• data transfer from the original module,
• ECU cloning,
• other controller-specific preparation methods.

Available options should be checked for the exact part number before ordering.

See ECU preparation options for more information.

Chrysler ECU cloning

For selected Chrysler controllers, it may be possible to transfer the required data from the original ECU to a compatible replacement module.

The possibility of cloning depends on the controller design and the condition of the original ECU. If the damaged controller cannot be read, another preparation method may be required.

Why part-number matching is important

Chrysler engine controllers frequently carry several references at the same time.

Examples include:

• 0281013901 / P05149122AC / AE3D4A,
• 0281013901 / P05149122AD / AE3D4A,
• 0281011410 / P05034035AB,
• 0281013380 / P05149117AA,
• P56044221AE / 56044221AE / FBKEA.

The more identifiers that match the original ECU, the easier it is to determine the correct version.

How to search for a Chrysler ECU by part number

Useful search combinations include:

• Chrysler ECU 0281013380 P05149117AA,
• Chrysler 300C ECU 0281013901 P05149122AC,
• Chrysler 300C PCM P05149122AD AE3D4A,
• Chrysler 300C ECU 0281013771 P05149119AC,
• Chrysler PT Cruiser ECU 0281011410 P05034035AB,
• Chrysler 3.7 PCM P56044221AE,
• Chrysler ECU P05033174AA S118013001D.

Exact part-number searches usually provide better results than searching only for “Chrysler engine computer”.

Selected Chrysler engine control units

Examples available in the catalogue include the Chrysler 300C Bosch 0281013901 / P05149122AC ECU, the Chrysler PT Cruiser Bosch 0281011410 / P05034035AB ECU, the Chrysler 3.7 Motorola P56044221AE PCM and the Chrysler 0281013380 / P05149117AA engine controller.

Related Chrysler and ECU categories

• All Engine Control Units – ECU / ECM / PCM
• Dodge Engine Control Units
• Jeep Engine Control Units
• Bosch Automotive Electronics
• ECU Preparation Options
• Electronic Car Parts
• Chrysler ABS Pumps

How to confirm Chrysler ECU compatibility

If you are unsure which controller is correct, contact Auto24Parts.

For compatibility verification, send:

• a clear photo of the complete original ECU label,
• complete Chrysler / Mopar number,
• Bosch, Motorola or other manufacturer reference,
• all suffix letters and calibration codes,
• vehicle model,
• production year,
• engine version.

The complete numbers from the original Chrysler ECU are more reliable than the vehicle model alone.

Ordering, Payment, Delivery and Returns

Ordering information is available in our How to Buy guide. Payment options are listed under Secure Payment Methods, while shipping details are available on the Shipping & Delivery page.

Current information about returns, complaints and warranty is available under Returns, Warranty & Complaints.

FAQ – Chrysler Engine ECU / PCM