Medium priority 80% confidence

Air conditioning stopped cooling / no response to AC button

Q: How to fix Air conditioning stopped cooling / no response to AC button in Toyota Hilux?

Compressor repair, internal control valve replacement. Japanese Denso classics often have thermostatic controllers on the pump cover. Don't disassemble the entire cover to the sensor on the radiator, the problem is often at the bottom, near the belt.

in Toyota Hilux (2011-2011)

Symptoms

Frost or ice on pipes under the hood

DTC error codes

Brak

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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

Generacja VII Wersja Standard

Refrigerant: R134a Amount (g): 450g Oil: - Oil (ml): - ml

Generacja VII Wersja V6

Refrigerant: R134a Amount (g): 650g Oil: - Oil (ml): - ml

Generacja VIII Ujednolicona Platforma

Refrigerant: R134a Amount (g): 500g Oil: - Oil (ml): - ml

See full specification

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