Peugeot 405 Interior Temperature Control Module - Used Original Parts

Diagnosis and Common Symptoms

From a workshop perspective, failure of the 405's climate control module presents with clear, predictable symptoms. The most common client complaint is a total loss of temperature regulation—the system is either stuck on maximum heat or blows ambient air, regardless of dial position. This is typically caused by internal circuit board failure preventing a signal from reaching the blend door actuator.

Further diagnosis often reveals an erratic or inoperative blower fan, particularly on specific speed settings, pointing to a breakdown of the module's integrated fan resistor circuits. Unlike a simple resistor pack failure, this fault is internal to the control head itself. Dashboard indicators may function, but the commands are not executed, confirming the module as the root cause of the system failure.

Introduction

Restore precise climate regulation to your vehicle's cabin with this genuine Peugeot 405 Interior Temperature Control Module. Sourced directly from original vehicles, this part ensures perfect integration with your existing wiring harness and blend door actuators. Every unit we supply has been rigorously bench-tested by our in-house technicians to confirm full functionality, from fan speed control to accurate temperature blending. This is a reliable, cost-effective solution to regain control of your comfort.

Product Details

• Brand: Peugeot
• Model Compatibility: Peugeot 405
• Part Name: Interior Temperature Control Module / Heater & AC Control Unit
• Condition: Genuine Used (Tested Working)
• Notes: Unit has been tested for correct potentiometer resistance sweep and verified output to blower motor resistor and blend door circuits. Ensure the rear connector matches your vehicle's harness.