Description
Complete Air Conditioning Wiring Harness For PEUGEOT 308 T7 Vehicles.
This OEM complete air conditioning wiring harness is intended for PEUGEOT 308 T7 models and carries the original part references used by Stellantis. The harness routes power and signal lines between the climate control unit, blower motor, compressor clutch, various temperature and pressure sensors, and the actuator motors that control airflow distribution. Ideal for mechanics and experienced DIYers repairing damaged or corroded wiring in the A/C system, this harness restores reliable electrical connection and helps eliminate intermittent faults caused by damaged cabling or connectors. Frequently searched by part number, this harness is a direct-fit replacement for vehicles that require the 6436J5 assembly and associated references.
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot)
- Model: Peugeot 308 T7
- Product Codes: 6436J5
- Other Numbers: 1740403, T1013478F
Compatibility
Designed For PEUGEOT 308 T7 Vehicles. Often Identified By Part Number 6436J5 Or The Listed Secondary References. Verify Fitment By Matching The Product Codes To The Existing Harness On The Vehicle.
Function And Benefits
The harness provides all electrical connections required for the vehicle’s air conditioning operation: compressor clutch power, evaporator temperature sensors, refrigerant pressure switch, blower motor feed, heater/vent blend door actuators and connections to the dashboard climate control module. Replacing a damaged harness restores stable signal transmission, reduces electrical resistance caused by corroded pins, and prevents intermittent faults that can disable A/C function or trigger diagnostic trouble codes.
Installation Recommendations
- Disconnect The Battery Before Any Work To Avoid Short Circuits Or Damage To Electronic Modules.
- Access The Harness By Removing Necessary Dash Trim, Glovebox, Or Under-Dash Covers Depending On Vehicle Version.
- Label Connectors During Disassembly Or Photograph Their Positions To Ensure Correct Reconnection.
- Inspect Connectors, Seals And Retaining Clips; Replace Any Damaged Clips Or Grommets To Prevent Future Chafing Or Moisture Ingress.
- Route The Harness Clear Of Heat Sources, Moving Components And Sharp Edges; Secure With OEM-Style Clips Or Cable Ties Where Appropriate.
- After Installation, Perform Functional Checks: Blower Speed Range, Mode/Flap Actuation, Compressor Engagement And Monitor For Any Fault Codes Using A Diagnostic Tool.
Why The Part Commonly Fails
A/C Wiring Harnesses Typically Fail Due To Mechanical Damage Or Environmental Factors Rather Than Electrical Wear. Common Causes Include Connector Corrosion From Moisture, Insulation Abrasion From Vibration Or Poor Routing, Rodent Damage, Heat Degradation Near Engine Bay Components, Or Impact Damage From Previous Repairs/Accidents. Faults Manifest As Intermittent Compressor Operation, Non-Responsive Flaps/Actuators, Blower Failures Or Diagnostic Fault Codes Related To Sensors.
For professional results, follow factory removal and installation procedures and ensure all connectors are fully seated and protected against moisture. Replacing the harness with the correct part code eliminates one of the most frequent sources of A/C electrical faults on the Peugeot 308 T7.
