Examination
1. To check the supply voltage, you need to disconnect the switch block (arrow).
2. Connect a voltmeter to the middle terminal of the block and to «mass». Turn on the ignition and measure the voltage. It should be 12 V. If the voltage is different from the specified, check the wiring.
3. To test the idle switch, connect an ohmmeter to the terminals «1» And «2» pad sockets. The ohmmeter should show zero. This means that the contacts are closed.
4. Then turn the throttle so that the switch turns off. The ohmmeter should show infinity. Otherwise, you need to adjust the position of the switch. If this does not help, replace the switch.
5. The full throttle switch is checked in the same way, but an ohmmeter is connected to the contacts «2» And «3». It shows infinity. When the damper is turned all the way, the ohmmeter should show zero.
6. You can check the wiring by connecting an ohmmeter to the contacts «1» And «20», and then «3» And «26». In both cases, the ohmmeter should show zero. Otherwise, there is a break in the wiring.
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