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Asymmetric cooling (driver/passenger different temperature)

Q: How to fix Asymmetric cooling (driver/passenger different temperature) in Inna Ford Explorer 3?

Replacing aluminum pipes with flexible hoses, including the modification of moving direct hose connections inside the passenger cabin (no aluminum parts susceptible to weather conditions remain outside).

in Inna Ford Explorer 3

Symptoms

Different temperature on both sides of the cabin

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Technical diagnosis (Premium)

Recognized technical fault:

Auxiliary controller voltage instability detected

Technical analysis

Detailed analysis of HVAC controller operation parameters, CAN bus data readings, and diagnostic signal waveforms. Purchase PRO access or log in to read the full fault analysis.

Confirmed solution

Complete step-by-step repair procedure including module non-volatile memory reset, sensor calibration, and correct wiring routing. Unlock the full report to see the instruction.

Parts needed

Filters ferrite anti-interference / noise suppressor
Auxiliary starting battery (depending on cell status)

Workshop hacks

Important workshop tips for mechanics regarding bypasses without expensive control module replacement and manufacturer software service bulletins.

TSB / TPI service bulletins

TSB-24-HVAC-01TPI-2068943/2

A/C Technical Specifications

Refrigerant specifications for this model are available in the catalog.

Open refrigerant database

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