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Weak cabin cooling / Loss of performance and unpleasant odor (musty/mold)

Q: What are the symptoms of Weak cabin cooling / Loss of performance and unpleasant odor (musty/mold) in Honda CR-V?

Weak cabin cooling. Musty mold odor from vents

Q: How to fix Weak cabin cooling / Loss of performance and unpleasant odor (musty/mold) in Honda CR-V?

Replacing the cabin filter with a new activated carbon filter. Unblocking the rubber condensate drain under the vehicle's chassis using a thin wire and compressed air, and then chemically removing fungi from the evaporator using foam preparations or ozonation.

in Honda CR-V (2000-2024)

Symptoms

Weak cabin cooling
Musty mold odor from vents

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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

V - (RW)

Refrigerant: R1234yf Amount (g): 480-530g Oil: PAG YF ISO 46 Oil (ml): 120 - 150ml

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Weak cabin cooling / Loss of performance and unpleasant odor (musty/mold)

Symptoms

A/C Technical Specifications

Other problems in CR-V

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