Consumer Shut Off Function Sequence
- BCM activates the consumer shut off function when the on-board electrical system voltage drops below 11.8 V in 5 seconds while ignition switch is ACC or ON.
- BCM shuts off one consumer every 5 seconds if the condition does not change.
- The shut off sequence is shown in the following table.
Shut off step
Consumers with reduced or no power
Responsible control unit
Maximum current
1
PTC heater heating level 6 (Passenger side)
A/C auto amp.
18.5 A
2
PTC heater heating level 5 (Driver side)
A/C auto amp.
18.5 A
3
PTC heater heating level 4 (Passenger side)
A/C auto amp.
18.5 A
4
PTC heater heating level 3 (Driver side)
A/C auto amp.
18.5 A
5
PTC heater heating level 2 (Passenger side)
A/C auto amp.
18.5 A
6
PTC heater heating level 1 (Driver side)
A/C auto amp.
18.5 A
7
Heated seat level 3
- Driver seat control unit
- Passenger seat control unit
13.2 A
8
Heated seat level 2
- Driver seat control unit
- Passenger seat control unit
13.2 A
9
Door mirror defogger
- Left front door control unit
- Right front door control unit
3.5 A
10
Rear window defogger
A/C auto amp.
30.0 A
11
Front blower P=50%
A/C auto amp.
16.0 A
12
Radiator fan P=50%
A/C auto amp.
31.0 A
13
Power sockets
BCM
6.0 - 8.0 A
14
Heated seat level 1
- Driver seat control unit
- Passenger seat control unit
3.3 A
15
Residual heat utilization function
A/C auto amp.
8.0 A
16
Radio
AV control unit
3.0 A
- The consumer shut off is not canceled even if the on-board electrical system voltage stabilizes at a value above 11.8 V. The shut off consumers are switched on again only after ignition switch is turned OFF once.