Peugeot 5008 Eolys| Additive Pump CAN Fault & Injector Issue (U0118, P1434, P1435, P02D3)

Описание: In this video, I diagnose a Peugeot 5008 (2015) using professional diagnostics and explain multiple permanent engine fault codes stored in the EDC17C60 ECU.

These faults are very common on Peugeot & Citroën (PSA) diesel vehicles, especially those fitted with DPF and Eolys additive systems.

I’ll explain what each fault code means, how they are linked together, and the correct diagnostic approach before replacing expensive parts.

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🔍 Full List of Fault Codes Found (With Description)

🔴 U0118 – Permanent

Multiplexed Additive Pump – CAN Communication Fault
• Loss of communication between engine ECU and additive (Eolys) pump
• Can cause DPF regeneration failure
• Common on Peugeot Citroën diesel models

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🔴 P1434 – Permanent

Multiplexed Additive Pump Fault
• Additive pump not operating correctly
• Possible causes:
• Failed additive pump
• Wiring or connector fault
• Additive ECU issue
• Low or empty Eolys fluid

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🔴 P1435 – Permanent

Multiplexed Additive Pump – CAN Fault
• Confirms communication or control issue with the additive system
• Often appears together with U0118 and P1434
• Very common on Peugeot & Citroën vehicles with DPF systems

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🔴 P02D3 – Permanent

Cylinder Number 4 – Fuel Quantity Correction Insufficient
• ECU unable to correctly adjust fuel quantity on injector cylinder 4
• Possible causes:
• Injector fault or wear
• Injector coding issue
• Fuel pressure imbalance
• Poor combustion caused by DPF or additive system failure

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⚠️ Important Peugeot Citroën Diagnostic Tip

On Peugeot and Citroën diesel engines, additive pump faults can trigger injector correction faults due to failed DPF regeneration and increased exhaust back pressure.

👉 Always diagnose and repair the additive / Eolys system first, then clear fault codes and reassess injector values before replacing injectors.

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🚗 Vehicle Details
• Make: Peugeot
• Model: 5008
• Year: 2015
• Engine ECU: EDC17C60
• Platform: PSA (Peugeot Citroën)

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