Check resistance between conclusions of the loudspeaker of a forward door.

If resistance does not meet standard, replace the loudspeaker of a forward door.

Resistance: 4 Ohms.

Connect the battery of 1,5 V to the loudspeaker of a forward door and be convinced that dynamics of a forward door makes a sound.

Fig. 7.83. Scheme of check of the loudspeaker of a peredeny door

If the sound is not heard, replace the loudspeaker of a forward door.