S 500 4MATIC (220.184) V8-5.0L (113.966) (2003)
VAF - YE
Abbreviations of Signal and Circuit Designations
V
Abbreviation
Designation
B+
Generator output voltage, hot when engine is running
D+
Generator 'running' signal (same as 61)
DFA
Speed signal output
DFAHL
Left rear VSS output
DFAVL
Left front VSS output
DFHL
Left rear VSS sensor
DFHR
Right rear VSS output
GES
Vehicle speed signal (VSS)
R50
Starter solenoid signal (after starter lockout switch)
-
Minus
+
Plus
12 VDC
Battery voltage or regulator voltage when engine is running
15
Switched battery power, hot in positions 2 & 3
15C
Switched battery voltage, hot until key is removed
15g
Switched battery voltage, fused
15R
Switched battery voltage, hot in positions 1, 2 & 3
15u
Switched battery voltage, unfused
15X
Switched battery voltage, hot in position 2
15Z
Switched battery voltage, hot in positions 2 & 3
30
Unswitched battery power
30a
Unswitched battery voltage
30A
Unswitched battery voltage, 'A' side
30B
Unswitched battery voltage, 'B' side
30E
Unswitched battery voltage, for electronics
30Z
Switched battery voltage, hot in positions 2 & 3
31
Ground
31e
Ground for electronics
49
Flasher signal
49a
Pulsed flasher signal
50
Starter solenoid signal
53
Wiper speed low
53b
Wiper speed high
54
Brake light signal
54
Brake lamp circuit
56
General lighting circuit
56a
High beam circuit
56b
Low beam circuit