Centralina ECU Sagem S2000PM2 Citroën Peugeot 9657018780 9649433980

Thu, 22 Oct 2026 02:12:04 +0000

SAGEM control unit for Citroen Berlingo and Peugeot Partner vehicles
With 1.4 I KFW engine

Part description

Used Sagem S2000PM2 injection control unit for Citroën Berlingo and Peugeot Partner vehicles with a 1.4 I KFW engine. The unit processes signals from sensors and controls injection operation. When replacing faulty electronics, it is important to select the correct version and ensure that the data is transferred correctly or that the unit is adapted to the vehicle.

When searching for a replacement part, refer especially to the numbers 9657018780 and 9649433980 and the S2000PM2 type. This used part offers an alternative to buying a new unit; however, before installation, the cause of the fault must be confirmed and a plan for commissioning the unit prepared.

Technical information

Manufacturer: SAGEM
Model: Citroën Berlingo, Peugeot Partner
Unit type: S2000PM2
Engine: 1.4 I KFW
Part category: injection control unit
Condition: used part
Additional numbers: 1940KJ, 194411
Vehicle model years: not specified

Product codes

Product codes: 9657018780, 9649433980, 1940KJ, 194411
Type designation: Sagem S2000PM2

Compare the markings with the original unit and the service documentation for the specific vehicle. Matching the model name and engine alone may not be enough to identify the correct version of the electronics.

Installation recommendations

The following procedure is a general guide to replacing an injection control unit. The exact removal, electrical checks and adaptation procedure depend on the specific model and vehicle version. We recommend having the replacement carried out by a professional with experience in PSA electronics.

1) Before installation

Use diagnostic equipment to verify that the unit itself is the actual cause of the problem, rather than the power supply, ground, wiring or a connected component.
Compare the product numbers, type designation, connectors and mounting points with the old unit. Assess hardware and software compatibility using the service documentation.
Inspect the housing and connectors of the used part. Check for signs of moisture, corrosion, deformed contacts or mechanical damage.
Determine in advance how the data will be transferred or the unit adapted. Keep the original unit in case the data needs to be read and backed up.

2) Tools and materials required

Standard hand tools suitable for the fasteners used and appropriate tools for carefully releasing connectors.
PSA diagnostic equipment and, depending on the method selected, equipment for working with the unit’s memory.
A multimeter, service documentation and products suitable for cleaning electrical contacts.
A suitable regulated power supply for diagnostics and programming, as required by the service procedure.

3) Step-by-step installation procedure

If the original unit communicates, read and save the diagnostic data and available configuration.
Back up the necessary data or prepare a plan for adapting the replacement unit. Read the memory only with the appropriate equipment and procedure.
Turn off the ignition, allow the electronics to enter their idle state as instructed by the manufacturer, and disconnect the battery before removal.
Access the unit according to the service procedure for the specific vehicle. Before disconnecting anything, note the wiring layout and connector positions.
Release the connectors and disconnect them carefully. Do not pull on the wires or pry against the contacts.
Release the mountings and remove the original unit without straining the surrounding wiring.
Check the connectors, wiring harness, power supply and ground. Before connecting the replacement unit, rectify any faults that may have caused the original unit to fail.
Have the data cloned or the unit prepared for subsequent initialization, according to the selected commissioning method.
Position the replacement unit, secure it according to the manufacturer’s instructions and connect the connectors. Check that the locking tabs are fully engaged and that the wiring is routed freely without tension.
Reconnect the battery using the procedure specified by the manufacturer. If the selected method requires initialization, telecoding and key adaptation, complete these using diagnostic equipment with the power supply secured.
Verify communication with the unit and check that the configuration is correct. Only after all necessary operations have been completed successfully should you check engine starting and operation.

4) Post-installation checks and test drive / functional verification

Check engine starting, engine stability and response to the accelerator pedal.
Perform a diagnostic check and assess any faults. Simply clearing the fault memory without addressing the cause is not sufficient.
Check that the unit is secured, the connectors are locked and the wiring is protected against abrasion and moisture.
If the engine is running correctly and the vehicle is safe to drive, take a short test drive and then repeat the diagnostic check.

5) Common installation mistakes and how to avoid them

Replacing the unit without verifying the cause: first check the power supply, ground and connected circuits to prevent the fault from recurring.
Selecting a part based only on the vehicle model: also compare the part numbers, version and configuration requirements.
Connecting the unit without adaptation: the used unit may not allow the engine to start simply by connecting it. Prepare the commissioning method in advance.
Working with the power on or interrupting programming: disconnect the battery during removal as instructed by the manufacturer; ensure the specified stable power supply during programming.
Damaging the connectors: release their locking mechanism first and never use excessive force to overcome resistance.

Installation and coding – important

The unit is used and is “paired” with the original vehicle (VIN/PIN/keys).
Commissioning options:
1. Cloning data from the old unit (EEPROM/Flash) – after cloning, the unit is plug and play.
2. Virginization followed by initialization/telecoding via DiagBox (possibly online) + key adaptation.
We recommend having this carried out by a professional with PSA service equipment (DiagBox/Lexia/PP2000).
Always disconnect the battery before removal/installation and follow the manufacturer’s procedure to avoid damaging the unit.

Reasons why the part may become damaged

Several factors can generally contribute to damage to injection control units. This is not a description of the condition found in this specific unit: