Volkswagen Polo Service & Repair Manual: Support Mode with Battery Charger -VAS5903
| The support mode provides the vehicle electrical system with
voltage when the battery is removed or disconnected. |
| For more information. Refer to Battery Charger -VAS5903-
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 -VAS5903-
WARNING
...
Note
If the battery is discharged by an electrical consumer
during maintenance charging, the Battery Charger -VAS5903-
automatically supplies the ...
Other materials:
Interior monitoring system and anti-tow alarm
Fig. 26 Next to the driver seat: button
for switching off the interior monitoring system and anti-tow alarm
First read and observe the introductory information
and safety warnings
The interior monitoring system will trigger an alarm if movement is detected
inside the vehicle when the vehicl ...
Critical Point
Vehicle air conditioning systems make use of the
vaporization and condensation process. In this case, one works
with a substance which boils easily, designated as refrigerant.
The refrigerant employed is tetrafluoroethane R134a, which
bo ...
Possible Concerns
Note
The A/C system is functioning correctly when the air flowing
from the instrument panel vents has a temperature of 70C
or lower.
Setting on Climatronic “LO”.
Setting on A/C system ...
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Severely Discharged Battery, Charging with Battery Charger -VAS5903
Battery Charger -VAS5903- Maintenance Charging