volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

A/C - Temperature Output Control Cannot Be Adjusted|Page 3867 > < A/C - Temperature Output Control Cannot Be Adjusted|Page 3865
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Check wiring for open circuit between 4-pin connector contact 1 and current supply relay for Motronic (main relay) using wiring diagram.

Wire resistance: max. 1.5 Ohm

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Check wiring between 4-pin connector and Ground for open circuit using wiring diagram.
Contact 2 and Ground 
Contact 4 and Ground
Wire resistance: Max. 1.5 Ohm

If there is no fault in the supply voltage:

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Check activation.

Checking activation

WARNING!
During the following test do not touch the connecting parts of the ignition coils or test cables.

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Remove fuse 32

NOTE:  Removing fuse 32 interrupts the voltage supply to the injectors.

A/C - Temperature Output Control Cannot Be Adjusted|Page 3867 > < A/C - Temperature Output Control Cannot Be Adjusted|Page 3865