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No airflow from specific vents or clicking noise behind dashboard

Q: What are the symptoms of No airflow from specific vents or clicking noise behind dashboard in Opel Corsa C?

No cold air from vents. Clicking or rattling behind dashboard. Unusual noises when A/C is turned on. A/C does not react to control panel settings

Q: How to fix No airflow from specific vents or clicking noise behind dashboard in Opel Corsa C?

Programming (SPS / TIS2Web). Updating the air conditioning controller software to the latest version. In the case of Astra J - replacing the old 16-bit driver with a 32-bit one (hardware upgrade). In Corsa C - replacing the TID module. If you see strange behavior of the flaps (they do not respond smoothly) or messages such as M1-M5, absolutely do not remove the dashboard! 9 out of 10 such cases in pre-facelift Opels are treated with a 10-minute visit with a laptop and uploading new calibration software via the OBD connector.

in Opel Corsa C (2002-2012)

Symptoms

No cold air from vents
Clicking or rattling behind dashboard
Unusual noises when A/C is turned on
A/C does not react to control panel settings

DTC error codes

Various, specific to HVAC module

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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

F (P2JO)

Refrigerant: R134a Amount (g): 380g Oil: PAG PAO 68 AA1 b.d. Corsa Oil (ml): b.d.ml

Refrigerant: R134a Amount (g): 420g Oil: PAG PAO 68 lub PAG ISO 46 Oil (ml): 80ml

Refrigerant: R134a Amount (g): 470g Oil: PAG PAO 68 lub PAG ISO 46 Oil (ml): 80ml

See full specification

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No airflow from specific vents or clicking noise behind dashboard

Symptoms

DTC error codes

A/C Technical Specifications

Other problems in Corsa C

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