17.7. Switches - check
1. Switches are checked by an ohmmeter with use of the applied basic scheme. Schemes of check of switches of turns / a sound signal and the heater/conditioner fan are represented in applied drawings.
2. Most easier to check up steams of normally closed or normally opened contacts of the switch (for example the switch of a signal of a manual brake). For this purpose find under the scheme the necessary switch, disconnect wires and connect to conclusions of the switch an ohmmeter (tester). Translate the switch in position "incl." and "off" and watch a device arrow. On normally closed contacts of the marksman should deviate, and at switching to return to former position. On normally opened contacts the return picture should be observed.
3. For check of multicontact switches it is necessary to use the applied diagramme (photo). On a vertical number of a conclusion of a socket of the switch, and across - switch position is specified. Conclusions between which should be the closed chain, are specified by mugs and connected by continuous line. Keep in mind that position of the switch of illumination has 3 positions - And, In and With. And - the top position, In - bottom and With - to pull in an arrow direction.