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Home >> Volkswagen >> 2005 >> Jetta TDI, Automatic >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (1.9L - Fuel Injection Glow Plug, Engine Code ALH, From My 2002 (A4 Platform)) >> 01 On Board Diagnostic (OBD) >> Function 03: Output Diagnostic Test Mode (DTM) >> Performing Output Diagnostic Test Mode >> Activating air conditioning compressor interrupt:

Activating air conditioning compressor interrupt:

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Indicated on display:

Output Diagnostic Test Mode →
A/C Compressor interrupt

Air conditioner compressor switch-off is checked.

The test step is also called on vehicles without air conditioner system.

A/C compressor must stop within 5 seconds (visual check) then start approx. every 5 seconds and then stop.

If A/C compressor does not switch off: