What are the symptoms of Unusual noise and metallic grinding when A/C is on in Nissan Roox?

No cold air from vents. Problem appears while driving. Unusual noises when A/C is turned on

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Unusual noise and metallic grinding when A/C is on

Q: How to fix Unusual noise and metallic grinding when A/C is on in Nissan Roox?

Wide recall campaign (covered 173,394 vehicles). The repair involves verifying the oil level in the compressor (topping it up in functional units), updating the ECU engine controller software to protect against stalling under load, and completely replacing the seized compressor with a new one, along with flushing the system.

in Nissan Roox (2009-2016)

Symptoms

No cold air from vents
Problem appears while driving
Unusual noises when A/C is turned on

DTC error codes

Engine Stall Active Guard

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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

Refrigerant specifications for this model are available in the catalog.

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Unusual noise and metallic grinding when A/C is on

Symptoms

DTC error codes

A/C Technical Specifications

Other problems in Roox

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