Checking the Halotron (VW Golf 2)

1. Disconnect the high-voltage wire from terminal No.4 of the ignition distributor and connect it to ground. Use an extension auxiliary cable for this purpose.

2. Pull off the rubber cover of the wires at the TSZ Halotron control system switching plug, do not remove the connection plug from the socket.

3. Connect the voltmeter to the rubber casing side of the plug between contacts No.6 and No.3 (the plug is inserted into the socket).

4. Turn on the ignition.

5. The engine should be rotated slowly, observing the readings of the measuring device. The measuring device should alternately indicate OV and at least 2E, depending on whether the diaphragm is in the gap of the halotron sensor or not. If the measuring device shows other readings, the halotron must be replaced.