Peugeot / Citroën 3-Pin Ignition Sensor Wire Harness Connector – Female OEM

This 3-pin female connector is used in Peugeot and Citroën ignition sensor harnesses, covering crankshaft position sensor (CKP), camshaft position sensor (CMP), and knock sensor (KS) circuits on PSA Group engines. PSA’s 3-pin ignition sensor connector carries the standard sensor triad: +5V reference power, sensor ground, and signal output. The connector is designed for the underhood environment of PSA’s TU, THP, HDi, and BlueHDi engine families. Available bare or with 15cm pre-wired leads.

Key Specifications

PSA Ignition Sensor Connector Failure Patterns

On Peugeot and Citroën vehicles, ignition sensor connectors in the underhood environment are exposed to oil contamination from valve cover gasket leaks (a common PSA issue), heat from the engine block, and vibration. The CKP connector is particularly vulnerable on PSA engines because it is mounted close to the crankshaft pulley, where oil spray and vibration are most severe. A corroded CKP connector on a PSA engine causes P0335/P0336 (CKP circuit) and can prevent the engine from starting entirely. On Diagbox (PSA’s diagnostic system), this appears as a “crankshaft sensor signal absent” fault. Replacing the connector before replacing the sensor is the correct first step.

Variant Guide

• Female – Bare 3-pin housing with terminals
• Female 15CM – Pre-wired with 15cm leads for direct splice-in installation

Installation Steps

1. Disconnect the vehicle battery
2. Locate the 3-pin ignition sensor connector on the CKP, CMP, or knock sensor harness
3. Release the locking tab and unplug the original connector
4. Inspect all 3 terminals for oil contamination and corrosion
5. Transfer terminals to the new housing or splice in the pre-wired variant
6. Reconnect and clear fault codes with Diagbox (PSA) or a compatible OBD2 scanner

Frequently Asked Questions

Q: What Peugeot and Citroën models use this 3-pin ignition sensor connector?
A: This connector is used on Peugeot 206/307/308/3008/508 and Citroën C3/C4/C5/Berlingo/Dispatch with TU, THP, HDi, and BlueHDi engines. Cross-reference your vehicle’s wiring diagram to confirm fitment.

Q: What fault codes indicate a failed ignition sensor connector?
A: Common codes include P0335/P0336 (CKP circuit), P0340–P0349 (CMP circuit), P0325–P0334 (knock sensor), and “sensor signal absent” faults on Diagbox.

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

Compatible Applications

• Peugeot 206/307/308/3008/508 – CKP, CMP, knock sensor harness
• Citroën C3/C4/C5/Berlingo – Ignition sensor connector
• PSA TU / THP / HDi / BlueHDi engine ignition sensor applications