Description
Power steering wiring harness for Peugeot 207 vehicles.
Description
This power steering wiring harness is a direct-fit electrical loom designed for Peugeot 207 models. It connects the electric power steering motor, sensors and related control connectors to the vehicle wiring, restoring reliable electrical communication and steering assist functionality. Ideal for professional workshops and experienced DIY mechanics searching by OEM numbers (9661148180, 6573S9, 6586Q9), the harness helps eliminate intermittent faults caused by damaged connectors, corroded pins or broken wires.
Key Features
- Direct replacement for original steering wiring harness on compatible Peugeot 207 vehicles.
- Includes factory-style connectors and routing to match OEM installation.
- Designed for vehicles with electric power steering systems to restore proper assist and sensor signals.
- Useful when diagnosing faults such as steering assist loss, warning lights, or communication errors tied to the steering system.
Technical Information
- Manufacturer: Stellantis (Peugeot/Citroën)
- Model: Peugeot 207
- Product Codes: 9661148180
- Other Numbers: 6573S9, 6586Q9
- Type: Power Steering Wiring Harness
- Location: Steering Rack / Steering Column (Electric Power Steering)
Replacement Procedure (Overview)
Suitable for professional mechanics and competent DIYers. Typical replacement steps:
- Disconnect the negative battery terminal before any work to prevent short circuits.
- Gain access to the harness routing – this may require removal of undertray panels or lower dashboard trim depending on model and harness location.
- Carefully unplug all steering-related connectors (power steering motor, sensors, ground) and release any retaining clips or ties.
- Remove the damaged harness and compare routing with the new harness to ensure identical clip positions and connector orientations.
- Install the new harness, secure with existing clips or replace broken retainers, and ensure wiring cannot chafe against moving parts.
- Reconnect connectors, check pin condition, apply a small amount of dielectric grease if necessary to protect against corrosion, then reconnect the battery.
- Perform a functional check of steering assist and, if required, run steering angle sensor calibration or basic settings with suitable diagnostic equipment to clear related fault codes.
Installation Recommendations
- Always disconnect the battery before starting to avoid short circuits and protect onboard electronics.
- Inspect connector pins and sockets for corrosion or bent pins; replace or repair damaged connectors rather than forcing connections.
- Replace any missing or damaged clips and cable ties to maintain original routing and prevent future abrasion.
- Use dielectric grease sparingly on exposed connectors to reduce moisture ingress and corrosion risk.
- After installation, clear fault codes and perform steering/angle calibration if the vehicle reports related errors—some functions require a diagnostic tool to restore full operation.
Why This Part Fails Most Often
The wiring harness itself has no scheduled service life; failures are usually caused by external factors rather than gradual wear. Common causes include:
- Corrosion from moisture ingress at connectors, especially if seals or boots are damaged.
- Mechanical damage from chafing, road debris or incorrect routing after previous repairs.
- Broken wires or pins due to vibration and fatigue, or damage during past maintenance.
- Rodent damage in vehicles left stationary for long periods.
Notes for Professionals
Mechanics searching by OEM or reference numbers will find this harness listed under codes 9661148180, 6573S9 and 6586Q9. Use correct diagnostic procedures after fitment to confirm steering assist and associated sensors operate within specification.
