High Priority 98% confidence

Air conditioning stopped cooling / no response to AC button

Q: What are the symptoms of Air conditioning stopped cooling / no response to AC button in Honda CR-V Hybrid?

No cold air from vents. Frost or ice on pipes under the hood

Q: How to fix Air conditioning stopped cooling / no response to AC button in Honda CR-V Hybrid?

Need to replace the high voltage electric compressor with a new OEM part. Thoroughly flushing the entire air conditioning circuit several times with a dedicated machine to completely remove the remains of conductive PAG oil and refilling the system with clean factor and a rigorously measured amount of POE oil.

in Honda CR-V Hybrid (2014-2026)

Symptoms

No cold air from vents
Frost or ice on pipes under the hood

DTC error codes

B151F49

Verifying license...

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

See full specification

Have this problem?

Generate a personalized AI report for your Honda CR-V Hybrid or book a workshop visit.

Generate AI report Schedule visit