Fig. 9.2. An arrangement of the switch of lamps of a backing above a transmission case
The switch of lamps of a backing is located above a case of the transmission
Include ignition and include transfer of a backing, at the same time the switch has to include backing lamps.
If lamps of a backing did not light up, check serviceability of a safety lock in an electric chain of lamps of a backing.
If the safety lock is serviceable, then disconnect the electric socket from the switch and an ohmmeter check a condition of its contacts which by the included transfer of a backing have to be closed (resistance is equal to 0). Install the gear shifting lever in neutral situation, at the same time contacts of the switch have to be opened and the ohmmeter has to show infinitely big resistance (lack of conductivity). In case of malfunction replace the switch.
If the switch is serviceable, check a condition of an electric chain between a safety lock and the switch. If the electric chain is serviceable, possibly, lamps in backing lamps fused.
If lamps in lamps of a backing are serviceable, check the wire connecting the switch to lamps.
Disconnect the electric socket from the switch of lamps of a backing.
Turn out the switch from a transmission case.
Before installation check the new switch. Connect an ohmmeter to contacts of the switch and be convinced that at the pressed switch plunger contacts are closed, and at released — are opened.
Screw the switch in a case of the transmission and tighten it the required moment.
Connect the electric socket to the switch.
Check work of lamps of a backing.