2. Disconnect the power transistor connector.
3. Check the resistance between the terminals "3" And "4" power transistor.
- Rated resistance - 1.5 kOhm±1%
4. Disconnect lead (A) power transistor connector.
5. Connect the positive battery terminal to the terminal (IN), and negative - to the conclusion (WITH).
6. Turn on the ignition ("ON") and make sure the heater fan is running.