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SPN 168 Battery Potential / Power Input 1
This parameter measures the first source of battery potential as measured at the input of the ECM/actuator etc. coming
from one or more batteries, irrespective of the distance between the component and the battery. This SPN is also used
when ECM's are interconnected in a series configuration, where the source of power is coming directly or indirectly from
the same battery/batteries.
Data Length: 2 bytes
Resolution: 0.05 V/bit, 0 offset
Data Range: 0 to 3212.75 V Operational Range: same as data range
Type: Measured
Supporting Information: See Appendix D - PGN 65104
PGN reference: 65271

PGN 65271 Vehicle Electrical Power 1 VEP1
Transmission Repetition Rate: 1 s
Data Length: 8
Extended Data Page: 0
Data Page: 0
PDU Format: 254
PDU Specific: 247 PGN Supporting Information: See Appendix D - PGN 65104
Default Priority: 6
Parameter Group Number: 65271 (0x00FEF7)
Start Position Length Parameter Name SPN
1 1 byte Net Battery Current 114
2 1 byte Alternator Current 115
3-4 2 bytes Charging System Potential (Voltage) 167
5-6 2 bytes Battery Potential / Power Input 1 168
7-8 2 bytes Keyswitch Battery Potential 158