Order of execution
1. Disconnect block block (1). Turn on the ignition and measure the voltage between the contacts «2» And «4». Voltage should be approximately 12V (battery voltage). Otherwise, you need to find and fix a break in the wiring (2 - switch).
2. Turn off the ignition and connect the block to the switch.
3. Disconnect the block from the ignition distributor.
4. Connect a voltmeter to terminals 6 and 4 of the ignition coil. Turn on the ignition and measure the voltage. It should be at least 2 V and after 1–2 s it should drop to zero. If it doesn't, the switch needs to be replaced.
5. Connect with a wire the central contact of the block 18 with «weight». The voltage should rise to 2 V for 4-cylinder engines and up to 5-6 V for 5-cylinder ones. Otherwise, replace the switch.
6. Switch off the ignition. Connect a voltmeter to the extreme contacts of block 18. Turn on the ignition and measure the voltage. It should be 5V. If the voltage is not as specified, check the wiring.
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