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3
Remove foot support on
passenger side
4
Measure battery voltage at
battery terminals
5
Withdraw ignition key
6
Switch off all consumers on
board the vehicle
7
Disconnect all external
consumers (e.g. chargers, MP3
player, amplifier etc.)
8
Open doors and liftgate
9
Lock rotary tumblers on doors
and liftgate
10
Lock the vehicle using the
central locking with open doors
and liftgate
Measure
11
Set multimeter to highest
possible current measurement
range
12
Connect multimeter between
ground line (1) and negative
terminal on battery (G1)
without any interruption
13
Measure no-load current
14
Remove fuses one by one from
the SAM control unit and
localize the faulty control unit
or defective consumer
Left-hand drive vehicles
Right-hand drive vehicles
Standard digital multimeter
gotis://E_15/54_06.0
If the battery voltage is less
than 12.2 V:
v
Charge battery (G1)
The interior illumination in
the vehicle must go out.
A waiting time of at least 6
mins. must be waited after
locking the vehicle.
Standard digital multimeter
gotis://E_15/54_06.0
To prevent any voltage
reset, the current flow must not
be interrupted. When fitting
the multimeter, bridge the
negative terminal of the
battery (G1) beforehand.
If the value for the no-load
current measurement:
On vehicles without
l
code (V01) Antitheft
alarm system (FFO)
exceeds 40 mA.
On vehicles with code
l
(V01) Antitheft alarm
system (FFO) exceeds
50 mA.
Wait in each case for at least 6
mins. until the next
measurement to enable the
activated bus to return to idle.
If the fuse of the defective
AR68.30-P-1340MCC
AR68.30-P-1340MCE
AR54.10-P-1130MCC
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