Volkswagen Golf Service & Repair Manual: Dealing with problems with Midtronics -INC 940- battery tester

Volkswagen Golf Service & Repair Manual / Electrical system, general information / Starter- current supply- CC / Charging battery / Dealing with problems with Midtronics -INC 940- battery tester

Under certain circumstances, the display may show errors or messages according to status.

The most frequent display messages are listed below, together with suggested solutions.

Note

For messages not listed here, please refer to → operating manual INC 940.

Display message

Measures

Check connection.

–	Check whether terminals of battery charger are firmly connected to battery terminals.

–	Check battery terminals are tightened according to regulations and do not have corrosion.

Terminals connected?

Safety function of tester.

–	Connect terminals to battery before starting charging procedure.

System noise

–	Switch off all electrical consumers.

–	Wait until all electrical loads monitored by onboard supply control unit have switched off.

–	Remove ignition key.

–	Disconnect any suspect non-standard electrical equipment from the onboard supply.

Wait a few minutes and repeat charging procedure → Chapter.

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