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Verification of the electrical circuitry of light
Table of diagnostics of malfunctions V-1. Verification of the electrical circuitry of a bulb "The raising transfer is switched off"
Scheme of an electrical wiring
G16/J20 engines
Identification of malfunctions
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Step
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Action
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Yes
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No
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1
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Verification of the electrical circuitry of a bulb "The raising transfer is switched off":
At the switched-off switch of ignition disconnect hitches from an electronic control unit.
By means of a service wire connect contact of the disconnected hitch of an electronic control unit of E61-20 (at G16/J20 engines) and "earth"
The bulb "Joins the raising transfer is switched off" at the switched-on ignition key?
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Bad connection of contact E61-20 (at G16/J20 engines). If everything is normal, replace with the serviceable block of electronic control and recheck
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The bulb or faulty conducting of "W/B", "B/W" burned down
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Table of diagnostics of malfunctions V-2. Verification of the electrical circuitry of the Raising Broadcast Is Switched Off indicator (the Raising Broadcast Is Switched Off indicator burns steadily)
Scheme of an electrical wiring
See the Table B-1 in this Section.
Identification of malfunctions
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Step
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Action
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Yes
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No
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1
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Check a condition of the switch of interruption of the raising transfer.
Press the button of the switch of interruption of the raising transfer (1)
The bulb "The raising transfer is switched off" burns steadily?
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You pass to a step 2
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System as it should be
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2
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Check the scheme of a bulb for short circuit
Switch off the ignition key and disconnect sockets of an electronic control unit
Turn on the ignition key
The bulb "The raising transfer is switched off" burns steadily?
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The chain of "W/B" is closed on "earth"
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You pass to a step 3
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3
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Check a chain of the switch of interruption of the raising transfer
At the switched-off switch of interruption of the raising transfer check resistance between contact of E61-33 (at G16/J20 engines) the disconnected socket of an electronic control unit and grounding of a body
There is a connection?
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You pass to a step 4
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Check a chain of grounding of an electronic control unit for a gap. If a grounding chain as it should be, replace with the serviceable block of electronic control and recheck
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4
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Check operation of the switch of interruption of the raising transfer
Remove a console box
Disconnect the socket of the switch of interruption of the raising transfer
Check connection between contacts of the switch in each of the provisions given below:
The switch is released: There is no connection
The switch is pressed: There is a connection
Result of check satisfactory?
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The chain of "Y/R" is closed on "earth"
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Replace the switch of interruption of the raising transfer
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The drawing [A] for a step 1
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1 — (When the ignition key is switched on)
Press the button to turn on the switch of interruption of the raising transfer.
Again press the button to switch off the switch of interruption of the raising transfer.
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The drawing [B] for a step 4
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2 — When the socket of the switch of interruption of the raising transfer is disconnected)
You hold a knopa pressed to close contacts of the switch.
Release the button to break off a chain in contacts of the switch.
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Table of diagnostics of malfunctions V-3. Verification of the electrical circuitry of a bulb "Food" (at inclusion of ignition the engine is started, and the bulb "Food" does not burn)
Scheme of an electrical wiring
G16/J20 engines
Identification of malfunctions
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Step
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Action
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Yes
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No
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1
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Check of an electrochain of a bulb "Food":
At the switched-off switch of ignition disconnect hitches from an electronic control unit
By means of a special wire connect to "earth" contact of E61-21 (at G16/J20 engines) the disconnected hitch of an electronic control unit
The bulb "Food" joins at the switched-on ignition switch?
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Bad connection of contact E61-21 (at G16/J20 engines). If everything is all right, replace with the serviceable block of electronic control and recheck
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The bulb or faulty conducting of "GR/Bl", "B/W" burned down
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Table of diagnostics of malfunctions V-4. Verification of the electrical circuitry of a bulb "Food" (the Food indicator burns steadily)
Scheme of an electrical wiring
See the Table B-3 in this section.
Identification of malfunctions
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Step
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Action
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Yes
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No
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1
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Check position of the switch of switching "Food/norm"
The button of the switch is in "normal" situation?
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You pass to a step 2
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Install the switching switch "Food/norm" in "normal" situation
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2
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Check a bulb chain for short circuit
Switch off the ignition key and disconnect sockets of an electronic control unit
Turn on the ignition key
The bulb "Food" burns steadily?
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The chain of "GR/Bl" is closed on "earth"
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You pass to a step 3
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3
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Check a switching switch chain "Food/norm"
At the switched-off switching switch "Food/norm" check resistance between contact of E61-31 (at G16/J20 engines) the disconnected hitch of an electronic control unit and grounding of a body
There is a connection?
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You pass to a step 4
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Check a chain of grounding of an electronic control unit for a gap. If a chain as it should be, replace with the serviceable block of electronic control and recheck
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4
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Check work the switching switch "Food/norm"
Remove the switching switch "Food/norm"
Check connection between contacts of "a" and "b" in each situation provided below:
Normal situation: there is no connection
Situation "Food": there is a connection
Result of check satisfactory?
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The chain of "Or/Bl" is closed on "earth"
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Replace the switching switch "Food/norm"
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The drawing [A] for a step 1
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1 — normal situation
2 — situation "Food"
3 — to press
4 — again to press to release |
The drawing [B] for a step 4
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5 — the switching switch "Food/norm" |
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