You can pierce the cable insulation with a needle contact test lamp and find out which cables are live.
Select the wiring diagram that matches the circuit breaker you are looking for.
First you should check if the switches are powered; to do this, you need to turn on the ignition or lighting several times.
It is then checked whether the switch in the appropriate position conducts voltage further down the circuit.
Using the example of an ignition lock switch, the check is as follows:
Remove the instrument cluster to expose the wires.
Connect test lamp wire to «mass».
Poke the insulation of the wire under test with a test needle:
Both red wires of terminal 30 must be constantly under battery voltage.
The grey/yellow P-terminal is in the «rest position» the ignition switch is energized, when the key is turned, the power supply is interrupted.
Black-yellow wire terminal X (and terminals 75) is energized only in the key position «ignition on».
The thin red wire to the parking light buzzer and the radio receives current when the ignition key is removed.
The black wire of terminal 15 is energized in the positions «ignition on» And «launch».
The red-black wire of terminal 50 of starting the engine starter is energized only in the position «launch».
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