34-Pin ECU Wire Harness Connector – OEM DTBFHPE34BKSV / 9645118180 / 320454

This 34-pin automotive ECU connector cross-references OEM part numbers DTBFHPE34BKSV, 9645118180, and 320454. Used in engine control unit and body control module harnesses on Peugeot, Citroën, and compatible European platforms. Available in Male and Female variants, bare or with 15cm pre-wired leads.

Key Specifications

Why ECU Connectors Fail

34-pin ECU connectors on PSA Group vehicles (Peugeot/Citroën) are prone to terminal corrosion from moisture ingress near the firewall and engine bay heat cycling. Symptoms include multiple simultaneous fault codes, engine management warning lights, limp mode, or intermittent no-start. Replacing the connector restores clean ECU signal paths and eliminates ghost faults.

Variant Guide

• Male – Bare male housing with terminals
• Male 15CM – Male connector with 15cm pre-wired leads
• Female – Bare female housing with terminals
• Female 15CM – Female connector with 15cm pre-wired leads

Installation Steps

1. Disconnect the vehicle battery and allow ECU to power down
2. Locate the 34-pin ECU connector (DTBFHPE34BKSV / 9645118180)
3. Use a terminal extraction tool to remove terminals from the original housing
4. Transfer terminals to the new housing maintaining exact pin positions
5. Reconnect and use a PSA-compatible scanner (Diagbox/PP2000) to clear fault codes

Frequently Asked Questions

Q: What vehicles use OEM 9645118180 / DTBFHPE34BKSV?
A: This connector is used on Peugeot 206, 307, 406, 407, Citroën C3, C4, C5, and Berlingo ECU harnesses. Cross-reference your wiring diagram to confirm.

Q: What fault codes indicate a failed ECU connector?
A: Multiple P-codes, U-codes (CAN bus faults), engine management light, and limp mode are common symptoms of a degraded 34-pin ECU connector.

Q: Do I need male or female?
A: The female connector plugs into the male header on the ECU. Check your existing harness connector gender before ordering.

Q: Are terminals included?
A: Yes, terminals are included with all variants.

Compatible Applications

• Peugeot 206 / 307 / 406 / 407 – ECU engine management harness
• Citroën C3 / C4 / C5 / Berlingo – Engine control module connector
• PSA Group shared platform ECU harness applications