Volkswagen Polo Service & Repair Manual: Support Mode with Battery Charger -VAS5900
| The support mode provides the vehicle electrical system with
voltage when the battery is removed or disconnected. |
| For more information. Refer to Battery Charger -VAS5900-
Operating Instructions. |
| The support mode is used for the following situations |
| Vehicle electrical system support mode with the battery not
installed |
| Maintaining the voltage when the battery is being replaced |
| Testing without the battery |
WARNING
| Risk of injury. Follow all Warnings and Safety
Precautions. Refer to
→ Chapter „Warnings and Safety Precautions“. |
|
WARNING
| Batteries that have a light yellow visual indicator
do not have to be tested or charged. Jump starting must
not be used! |
| There is a risk of explosion during testing,
charging or jump starting. |
| These batteries must be replaced. |
|
| – |
Turn off the ignition and all electrical consumers. |
Caution
| The polarity protection of the charger clamps is not
active in the operation mode “charging severely
discharged batteries/Support mode”. Connect the charger
clamps to the battery terminals correctly according to
polarity! |
| It can result in sparks due to short circuit. |
| This constitutes an explosion risk. |
| Make sure the charger clamps are secure. |
| Do not touch START/STOP
when battery cables are incorrectly connected! The
charger can be damaged. |
|
| – |
Plug in the electrical system connector of the charger. The
last selected operation mode is shown on the display. Refer to
→ Chapter „Battery Charger -VAS5900- Device Description“. |
Caution
| Whenever the battery is removed, be careful to
prevent contact between the connected charge clamp on
the positive terminal and the body ground. Likewise
prevent contact between the battery terminals. |
|
| – |
Connect the red charging clamp “+” to the vehicle positive
terminal. |
 Note
| In the case of vehicles with a start/stop function and an
installed Battery Monitoring Control Module -J367-, the black
charging clamp (-) must be connected to the body ground. The
start/stop system will malfunction if it is connected to the
negative terminal on the battery. |
| – |
Connect the black charging clamp “+” to the vehicle negative
terminal. |
| – |
Press START/STOP for
approximately 5 seconds. The menu item “Charging severely
discharged batteries/Support mode” is activated. |
| – |
Press the corresponding button “Up”↑
or “Down”↓, to set the respective
battery voltage (6 V, 12 V or 24 V). |
Note
| If no button is touched within five seconds, the battery
charger will return to the main menu (operating mode selection). |
| – |
Confirm the selected battery voltage by pressing
START/STOP. |
| Then the inquiry about the correct polarity of the charging
clamps is made. |
| – |
Verify that the charger clamps are connected to the correct
polarity. |
| – |
Confirm that the charger clamps are connected to the correct
polarity by pressing START/STOP. |
| The battery charger starts the battery support mode. |
| – |
Remove the black charging clamp “-” of the charger from the
negative battery terminal of the vehicle. |
| – |
Remove the red charging clamp “+” of the charger from the
positive battery terminal of the vehicle. |
| – |
Pull out the electrical system connector of the charger. |
|
|
|
Special tools and workshop equipment
required
Battery Charger -VAS5900-
WARNING
...
Note
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during maintenance charging, the Battery Charger -VAS5900-
automatically supplies the ...
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Severely Discharged Batteries, Charging with Battery Charger -VAS5900
Battery Charger -VAS5900- Maintenance Charging