Description
Power Steering Harness For Peugeot 207 Vehicles
High-quality power steering wiring harness designed for Peugeot 207 models. This replacement harness restores reliable electrical connection between the electric power steering components and the vehicle electrical system. Ideal for professional workshops and DIY mechanics looking for the correct OE-referenced part — often searched by product codes 9661148180, 6573S9 or 6586Q9. The harness carries power and signal lines for the steering motor, torque sensor and related fusing/connector interfaces, helping to resolve intermittent assist, warning lights or complete loss of electric power steering caused by damaged cabling.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Peugeot 207
- Product Codes: 9661148180, 6573S9, 6586Q9
- Other Numbers: 9661148180 / 6573S9 / 6586Q9
Function And Fitment
The harness transmits power and control signals between the vehicle wiring loom and the electric power steering unit (motor, torque sensor and associated sensors/relays). It is made to fit the wiring routing and connector types used on Peugeot 207 models — check the visible connector shapes and mounting points against your vehicle during replacement. Using the correct harness ensures secure connections, preventing voltage drops and intermittent faults that affect steering assist performance.
Replacement Procedure
Basic replacement steps for a competent mechanic or experienced DIYer:
- Disconnect Battery: Always disconnect the negative battery terminal before starting work to avoid electrical shorts and to protect sensitive electronics.
- Access Harness: Remove trim panels, lower dash or under-hood covers as required to access the steering column and steering motor connectors.
- Label Connectors: Mark or photograph connector positions before unplugging to ensure correct reconnection.
- Remove Old Harness: Unclip and remove the damaged harness from mounting points. Inspect connectors and mating sockets for corrosion or damage.
- Install New Harness: Route the new harness following factory routing, secure with clips or ties, and ensure no cables are pinched or chafing against moving parts.
- Reconnect Battery And Test: Reconnect battery, clear any stored fault codes and verify steering assist operation. Some vehicles may require clearing or recalibration of steering/angle sensors using a diagnostic tool.
Installation Recommendations
Replace the harness in a clean, dry workspace. Use manufacturer-approved clips and avoid over-tightening fasteners that could damage the cable insulation. After installation perform a full system check: verify there are no power steering fault lights, check for unusual noises or loss of assist, and confirm proper steering feel at low and high speeds. If fault codes remain, use a compatible PSA diagnostic tool or a qualified service to read and clear codes and perform any necessary calibrations.
Why The Part Most Often Fails
Wiring harness failures are usually caused by external damage rather than internal defect. Common causes include chafing against bodywork or moving components, water ingress and connector corrosion, rodent chewing, damage from previous repairs or accident impact, and heat-related insulation degradation. Symptoms of a failing harness include intermittent or total loss of power assist, steering warning lights on the dash, and electrical fault codes related to the steering motor or torque sensor.
Who Should Buy This Part
This harness is intended for professional mechanics and knowledgeable DIY enthusiasts repairing Peugeot 207 vehicles. It is particularly useful when the original harness is physically damaged, connectors are corroded, or when replacing the steering motor/assembly where a reliable electrical connection must be restored.
