Abbreviations of Signal and Circuit Designations
VAbbreviation 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
58 Tail/parking lamp circuit
58d Instrument illumination
58k Instrument illumination, unprocessed
61 Generator 'running' signal
61e Generator 'running' signal
81 Reverse gear signal
81a Reverse gear signal (after transmission switch)
85 Relay control signal
85EDC IFI relay control
85EDC Relay control signal, Electronic Diesel Control
85F Horn relay control
85LP Air pump relay control
86 Relay control signal
86KP Fuel pump relay control
87 Relay output (unspecified)
87ABS Power supply for ABS
87EGAS EA voltage supply
87GES Voltage supply fused
87KP Fuel pump voltage supply
87LP Air pump voltage supply
87MOTR ME-SFI voltage supply
875A Power supply for optional equipment
87UG Relay output, unfused
87Z Relay output, fused
-4 -> Indicates number of wires connected to the appropriate terminal block or connector sleeve
* Asterisk marks connector sleeve with not all wires shown