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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 Nissan Qashqai?

No cold air from vents. No blowing from vents. Warning light on dashboard

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

Unclogging or replacing the damaged DPF exhaust pressure sensor tube and deleting errors in the engine controller, which automatically unblocks the air conditioning compressor.

in Nissan Qashqai (2010-2020)

Symptoms

No cold air from vents
No blowing from vents
Warning light on dashboard

DTC error codes

P0530

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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

III - (J12)

Refrigerant: R1234yf Amount (g): 450-500g Oil: PAG YF ISO 46 Oil (ml): 120 - 140ml

(J11)

Refrigerant: R1234yf Amount (g): 500g Oil: ND12 PAO 68 AA1 lub Oil (ml): b.d.ml

II - (J11)

Refrigerant: R134a Amount (g): 480-530g Oil: PAG 46 Oil (ml): 120 - 150ml

See full specification

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