Designations on electrical equipment diagrams (Audi A4 B6)

Table of contents: Electrical Wiring Insulation Color… ↓ List of abbreviations used in… ↓ Russians ↓ Latin ↓ Ignition switch positions ↓

When searching for a failure of a specific circuit, first of all also check the quality of the contact connections of its electrical wiring. When disconnecting electrical connectors, try to pull only by their housings, and in no case by the wiring harness.

Electrical Wiring Insulation Color Codes

Code	Color
BLK	Black
BLU	Blue
BRN	Brown
GRN	Green
GRY	Grey
LT	Light (shade)
NCA	Any
ORG	Orange
PNK	Pink

List of abbreviations used in diagrams

Russians

Reduction	Meaning
AT	Automatic transmission
D/V	Sensor switch
D/SWITCH	Sensor switch
K/V	Air conditioner
K/L	Control lamp
K/LAMP	Control lamp
LF	Low frequency
PR-L	Fuse
Manual transmission	Manual gearbox
SC	Midrange
Heating element	Thermoelectric heating element
EM	Electromagnetic
E/MOTOR	Electric motor
ELECTRIC DRIVE	Electric drive

Latin

Reduction	Meaning
ABS	Anti-lock brake system
AIR	(System) of secondary air mixing
CMP	(Sensor) of position of the camshaft
CVT	AT variable speed type
DLC	Diagnostic connector
ECM	Engine Control Module
ECT	(Sensor) engine coolant temperature
EVAP	(System) for capturing fuel vapors
GPS	(Navigation) global positioning system
IAC	(System) of stabilization of speed of idle
IAT	(Sensor) intake air temperature
KS	Knock sensor
LDP	Leak localization pump
MAF	(Meter) mass air flow
MAP	Absolute pressure in the intake manifold
MIL	(Control lamp) failures ("Check Engine")
MOTRONIC	Fuel injection control system
PNP	Start Permission Switch Sensor
SERVOTRONIC	Speed-dependent power steering
SRS	Additional security system (airbags, emergency seat belt tensioners)
TCM	AT control module
TELEMATIC	Emergency call system
TIPTRONIC	A device that enables manual, forced gear shifting of an automatic transmission
TPS	Throttle position sensor
VSS	Vehicle speed sensor