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Asymmetric cooling (driver/passenger different temperature)

Q: What are the symptoms of Asymmetric cooling (driver/passenger different temperature) in Toyota Urban Cruiser Hyryder?

Different temperature on both sides of the cabin. Frost or ice on pipes under the hood. Slow loss of refrigerant

Q: How to fix Asymmetric cooling (driver/passenger different temperature) in Toyota Urban Cruiser Hyryder?

Carrying out detailed computer diagnostics of the HVAC system, checking the operating pressures (low and high) at the A/C service station and verifying any refrigerant losses using a UV dye or a gas detector. Depending on the detected anomalies, the repair involves replacing the damaged element (fan, sensor or cables) and refilling the system.

in Toyota Urban Cruiser Hyryder (2022-2022)

Symptoms

Different temperature on both sides of the cabin
Frost or ice on pipes under the hood
Slow loss of refrigerant

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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

Standard

Refrigerant: R134a Amount (g): 370g Oil: ND8 PAO 68 lub PAG ISO 46 Oil (ml): 65ml

(J12)

Refrigerant: R134a Amount (g): 600g Oil: PAG PAO 68 lub PAG ISO 46 Oil (ml): 125ml

(J12)

Refrigerant: R134a Amount (g): 620 – 680g Oil: ND8 PAO 68 lub PAG ISO 46 b.d. z Oil (ml): b.d.ml

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Asymmetric cooling (driver/passenger different temperature)

Symptoms

A/C Technical Specifications

Other problems in Urban Cruiser Hyryder

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