Volvo Trucks FM Electrical system Manual — part 1
Example of wiring diagram
Component wiring diagram title, variant/subtitle and symbol.
Coordinates (B 1).
30 Voltage battery, kl.30.
15 Voltage with starter key in drive position, kl.15.
DR Voltage with starter key in drive position, preheat
position and start position, kl.DR.
61 Voltage when alternator charges, kl.61.
Splice.
Fuse.
Reference arrow, for diagram BA, coordinates 0 C,
component A17, connector PA pin 29.
2
The maximum of variants are drawn, think about that all
wires and components are not standard for all markets or
vehicle models.
Switch.
Relay.
Conductor on circuit card.
Connector MB terminal 9.
Wire area and colour.
Thin lines, wires.
3
Earth connection point 4, earth connection 1 and wire 2.
Earth connection to circuit card.
Earth connection without wire.
Same splice can be drawn on several diagrams. The wire
from the splice to the earth connection point will only be
drawn and coded on one diagram. On the other diagrams
will only the earth connection point be written besides the
splice.
4
Component wiring diagram index
AA
Power supply, starting system . . . . . . . . . . . . . . . . . .
AB
Main switch . . . . . . . . . . . . . . . . . . . . . . . . . .
AC
Power distribution . . . . . . . . . . . . . . . . . . . . . . ...
AE
ADR, main switch . . . . . . . . . . . . . . . . . . . . . . ...
AF
ADR, main switch, ADR3 . . . . . . . . . . . . . . . . . . . .
BA
Vehicle ECU . . . . . . . . . . . . . . . . . . . . . . . . ...
BE
Driver Assistance System, ACC . . . . . . . . . . . . . . . . . .
BI
Instrument cluster . . . . . . . . . . . . . . . . . . . . . . ...
BM
Tachograph in dash . . . . . . . . . . . . . . . . . . . . . .
BN
Tachograph in shelf . . . . . . . . . . . . . . . . . . . . . .
BU
Dynafleet TIS-BAS/TIS-MED/TIS-HIGH . . . . . . . . . . . . . . .
BX
FMS Gateway . . . . . . . . . . . . . . . . . . . . . . . . .
BZ
Toll collect . . . . . . . . . . . . . . . . . . . . . . . . . ...
BZ RHD
Toll collect . . . . . . . . . . . . . . . . . . . . . . . . . ...
CJ
Engine interface . . . . . . . . . . . . . . . . . . . . . . . ..
CO
Engine D11A, D11B, D13A . . . . . . . . . . . . . . . . . . . .
Engine D11C, EM-EU5 . . . . . . . . . . . . . . . . . . . . ...
Engine D11C, EM-EU5 . . . . . . . . . . . . . . . . . . . . ...
Engine D13B, EGR-C, EM-EC06 . . . . . . . . . . . . . . . . ...
Engine D13B, EGR-C, EM-EC06 . . . . . . . . . . . . . . . . ...
Engine D13H, EM-JPN10 . . . . . . . . . . . . . . . . . . . ...
Engine D13H, EM-JPN10 . . . . . . . . . . . . . . . . . . . ...
Engine D13C, EM-EU5 . . . . . . . . . . . . . . . . . . . . ...
Engine D13C, EM-EU5 . . . . . . . . . . . . . . . . . . . . ...
CP
12V trailer ABS converter, VERS-AUS, TABS-12V . . . . . . . . . .
CR
SCR+DPF, EM-JPN10 . . . . . . . . . . . . . . . . . . . . .
CV
SCR . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC
Gear selector ECU (I-SHIFT/POWERTRONIC) . . . . . . . . . . . .
DI
Powertronic . . . . . . . . . . . . . . . . . . . . . . . . . .
DM
Retarder manual gearshift . . . . . . . . . . . . . . . . . . . ..
DP
I-shift . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
DQ
Power take off . . . . . . . . . . . . . . . . . . . . . . . . .
DU
Diff-lock . . . . . . . . . . . . . . . . . . . . . . . . . . ...
EE
ABS basic, E-version . . . . . . . . . . . . . . . . . . . . . ..
EE RHD
ABS basic, E-version . . . . . . . . . . . . . . . . . . . . . ..
EF
ABS 6x2 VERS-SAM . . . . . . . . . . . . . . . . . . . . . ..
EO
EBS ECU . . . . . . . . . . . . . . . . . . . . . . . . . .
EO RHD
EBS ECU . . . . . . . . . . . . . . . . . . . . . . . . . .
5
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