Troubleshooting audio signals (VAZ-2121)

The reasons for malfunctions of sound signals may be the following: the switch does not work or is stuck, or the sound signal is damaged.

To detect a malfunction, check the reliability of the wire connection, the condition of the switch contacts. Clean the contacts if necessary. Replace the faulty switch and sound signal with a new one.

If the sound volume decreases or wheezing appears, adjust the signal. Adjust by turning screw 8 (fig. 7-31) in one direction or another until a loud and clear sound is obtained.

If the adjustment does not eliminate the wheezing or if the signal works intermittently, then disassemble the signal and clean the breaker contacts.

When assembling the signal, it is necessary to install the previous gasket between membrane 1 and signal body 6, so as not to disturb the gap of 0.4±0.05 mm between the core and the anchor.