Checking the supply voltage of the idle and full load switches on vehicles with a «PB» engine (VW Passat B4)

Disconnect the switch connector (fig. 2-105). connect the voltmeter to terminals "1" and "2" of the plug part 2 of the connector.



Turn on the ignition and check the supply voltage of the switches, which should be about 5 V.

If the measured voltage does not correspond to this, connect the switch connector. identify and eliminate the cause of the circuit integrity violation. If the circuit is not broken, replace the controller.