9.3.2. Diagnostics

Possible malfunctions of headlights, their reasons and elimination methods are resulted in tab. 9.3.

Table 9.3    Diagnostics of malfunctions of headlights

The possible reason	Elimination method
Infringements in work of a passing light of headlights, headlight work are perfectly in order
Breakage of a chain or short circuit in a chain between safety lock Ef10/Ef11 and the plug 5 combined switches of headlights	Repair or replace electroconducting
Breakage of a chain or short circuit in a chain between safety lock Ef10 or Ef11 and the plug 2 sockets of headlights	Repair or replace electroconducting
Infringements in work of a headlight of headlights, passing light work are perfectly in order
Breakage of a chain or short circuit in a chain between safety lock Ef8/Ef9 and the plug 4 combined switches of headlights	Repair or replace electroconducting
Breakage of a chain or short circuit in a chain between safety lock Ef8 or Ef9 and the plug of 1 socket of headlights	Repair or replace electroconducting
Infringements in work distant and a passing light of the right and left headlights
Breakage of a chain or short circuit in a feed circuit of safety lock Ef18	Repair or replace electroconducting
Oxidation of contacts of safety locks Ef8, Ef9, Ef10, Ef11, Ef18	Replace safety locks Ef8, Ef9, Ef10, Ef11, Ef18
Breakage of a chain or short circuit in a chain between safety lock Ef18 and plugs 86, 30 sockets of the relay of headlights	Repair or replace electroconducting
Malfunction of the relay of headlights	Replace the relay of headlights
Breakage of a chain or short circuit in a chain between the plug 87 sockets of the relay of headlights and the plug 6 combined switches	Repair or replace electroconducting
Malfunction of the combined switch of headlights	Replace the combined switch of headlights
Grounding breakage in a chain (G201, G102, G101)	Repair a chain
Oxidation of contact of a bulb of a headlight	Replace a headlight bulb

Possible malfunctions of indexes of turn and emergency light signal, their reason and elimination methods are resulted in tab. 9.4.

Table 9.4      Possible malfunctions of indexes of turn and an emergency light signal, their reason and elimination methods

The possible reason	Elimination method
Indexes of turn and emergency light signal do not work
Breakage of a chain or short circuit in a chain between a feed circuit and safety lock Ef2	Repair or replace electroconducting
Malfunction of contact of safety lock Ef2, Ef12	Replace safety lock Ef2, Ef12
Breakage of a chain or short circuit in a chain between safety lock Ef2 and safety lock Ef12	Repair or replace electroconducting
Breakage of a chain or short circuit in a chain between safety lock Ef12 and the plug 8 sockets of the switch of an emergency light signal	Repair or replace electroconducting
Malfunction of the switch of an emergency light signal	Replace the switch of an emergency light signal
Breakage of a chain or short circuit in a chain between the plug 7 sockets of the switch of an emergency light signal and the plug 49 sockets of the relay of indexes of turn	Repair or replace electroconducting
Breakage of a chain or short circuit in a chain between the plug 49а a socket of the relay of indexes of turn and the plug 9 sockets of the switch of an emergency light signal	Repair or replace electroconducting
Malfunction of the relay of indexes of turn	Replace the relay of indexes of turn
Breakage of a chain or short circuit in a chain between the plug 49а a socket of the relay of indexes of turn and the plug 2 sockets of the switch of the index of turn	Repair or replace electroconducting
Malfunction of the switch of indexes of turn	Replace the switch of indexes of turn
Breakage of a chain or short circuit in a chain between plugs 1,3 sockets of the switch of indexes of turn and plugs 2,5 sockets of each index of turn	Repair or replace electroconducting
Oxidation of contact of a lamp of the index of turn	Replace a lamp of the index of turn
Grounding breakage in a chain (G101, G102, G401, G402)	Repair a chain
Infringements in work of an emergency light signal, work of the index of turn are perfectly in order
Breakage of a chain or short circuit in a chain between plugs 5,6 sockets of the switch of an emergency signal and plugs 2,5 sockets of indexes of turn	Repair or replace electroconducting

Possible malfunctions of a stoplight and plafond of illumination of salon, their reason and elimination methods are resulted in tab. 9.5.

Table 9.5        Possible malfunctions of a stoplight and a plafond of illumination of salon, their reason and elimination methods

The possible reason	Elimination method
Stoplight lanterns do not work
Breakage of a chain or short circuit in a chain between safety lock F11 and the plug 2 sockets of the switch of a lantern of a stoplight	Repair or replace electroconducting
Malfunction of the switch of lanterns of a stoplight	Replace the switch of lanterns of a stoplight
Breakage of a chain or short circuit in a chain between the plug of 1 socket of the switch of lanterns of a stoplight and the plug 3 sockets of lanterns of a stoplight	Repair or replace electroconducting
Weight breakage (G401, G402)	Repair weight breakage
The plafond of illumination of salon does not work
Breakage of a chain or short circuit in a feed circuit of safety lock Ef2	Repair or replace electroconducting
Breakage of a chain or short circuit in a chain between safety lock Ef2 and safety lock F11	Repair or replace electroconducting
Oxidation of contact of safety lock F11	Replace safety lock F11
Breakage of a chain or short circuit in a chain between a safety lock 11 and the plug of 1 socket of a plafond of illumination of salon	Repair or replace electroconducting
Malfunction of a plafond of illumination of salon	Replace a plafond of illumination of salon
The plafond of illumination of salon and stoplight lanterns do not work
Oxidation of contact of a lamp of a plafond of illumination of salon or stoplight	Replace a lamp
Oxidation of contact of safety lock Ef2, F5	Replace safety lock Ef2, F5

Possible malfunctions of a back antifog lantern, their reason and elimination methods are resulted in tab. 9.6.

Table 9.6       Possible malfunctions of a back antifog lantern, their reason and elimination methods

The possible reason	Elimination method
The back antifog lantern does not work
Breakage of a chain or short circuit in a chain between the plug 87 sockets of the relay of headlights and plugs 15,30 sockets of the relay of a back antifog lantern	Repair or replace electroconducting
Malfunction of the relay or the switch of a back antifog lantern	Replace the relay or the switch of a back antifog lantern
Breakage of a chain or short circuit in a chain between the plug 87 sockets of the relay of a back antifog lantern and the plug 6 sockets of a back antifog lantern	Repair or replace electroconducting
Breakage of a chain or short circuit in a chain between plug E of a socket of the relay of a back antifog lantern and the plug 6 switches of a back antifog lantern	Repair or replace electroconducting
Weight breakage (G201, G401) in a chain	Repair weight breakage in a chain
Oxidation of contact of a lamp of a back antifog lantern	Replace a lamp of a back antifog lantern

The back antifog lantern will not work without inclusion of headlights of a passing light. If passing light headlights do not work, eliminate this malfunction before carrying out of diagnostics of a back antifog lantern.