Auxiliary Battery Charging Mode - Mercedes-Benz W211 Manual

Auxiliary Battery Charging Mode

Auxiliary Battery Charging Mode
Kl . 30
CAN-B
N82
Kl . 31
F30
30
F30 Polyswitch fuse
F32 Front prefuse box
F33 Rear prefuse box
- -
G1/7
+ +
87
K57/2
G2
G1
G1/7
G2
- Battery control module detects
F33
insufficient voltage at auxiliary
battery
E
G1
- Auxiliary battery relay (K57/2) is
- -
+ +
activated for a short period of
time if primary system voltage is
above 13.5V
E
F32
- Auxiliary battery is charged
by alternator through auxiliary
battery relay (K57/2)
M1
- This charging cycle will only
occur once per ignition cycle
Battery
Auxiliary battery
Alternator
K57/2 Auxiliary battery relay
M1 Starter
N82 Battery control module
24