Checking the switch (electronic ignition systems) (VW Golf 2)

Prerequisites for testing: The ignition coil has been tested.

Disconnect the TSZ-H switch connector by pressing the wire retainer.

Connect a voltmeter to pins 2 and 4 on the connector.

Caution: Be careful not to damage the connector contacts.

Turn on the ignition. The meter should show battery voltage (about 12 V), otherwise, find and eliminate the break in the electrical circuit.

Turn off the ignition.

Reconnect the TSZ-H switch connector.

Disconnect the Hall sensor connector on the ignition distributor by pressing on the wire retainer.

Connect a voltmeter to terminals 1 (-) and 15 (+) on the ignition coil.

Turn on the ignition. The specified value is: voltage of at least 2 V, which should drop to 0 V within 1-2 seconds. Otherwise, replace the TSZ-H switch. Check whether the compound mass has leaked from the ignition coil and, if this is detected, replace the ignition coil. -

Briefly touch the "ground" with the auxiliary wire connected to the middle contact of the Hall sensor connector. The voltage should briefly increase to at least 2 V. Otherwise, determine the break in the middle wire and replace either the wire or the switch.

Turn off the ignition.

Connect a voltmeter to the outer contacts of the Hall sensor connector on the ignition distributor.

Turn on the ignition. Specified value: not less than 5 V.

attention! If, despite the presence of the specified swings, the defect remains, replace the TSZ-H switch or check the wires between the connectors and the switch.