Before diagnosing the failure of any of the circuits, check the condition of the fuses and circuit breakers protecting it (if the latter are provided). Make sure the battery is fully charged and check the quality of the contact connections of the wires coming from its terminals (see chapter Vehicle settings and routine maintenance).
When looking for a failure of a particular 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.
Designations of colors of electrical wiring insulation *
Characteristic | Meaning |
ВLK | Black |
BLU | Blue |
BRN | Brown |
GRY | Grey |
GRN | Green |
LT | Light (shade) |
NCA | Indefined |
ORG | Orange |
PNK | Pink |
PPL | Purple |
RED | Red |
TAN | Golden |
VIO | Violet |
WHT | White |
YEL | Yellow |
* OR = OR. For example: YEL OR ORG = Yellow or Orange |
List of abbreviations used in the notation on the diagrams
Characteristic | Meaning |
AT | automatic transmission |
D/V | Sensor-switch |
K/V | air conditioner |
K/L | Pilot lamp |
PR-L | Fuse |
EM | Electromagnetic |
DLC | Diagnostic connector |
DRL | Daytime running lights |
ECM | Electronic control module |
ECU | Electronic control unit |
EGR | (System) exhaust gas recirculation |
EVAP | (System) trapping fuel vapors |
IAT | (Sensor) intake air temperature |
IGN | Ignition |
IND | Indicator/Indicator lamp |
J/B | Connection block |
J/C | Connector |
R/B | Mounting block |
VSS | Vehicle speed sensor |
VSV | Vacuum switch valve |
Automatic transmission
Characteristic | Meaning |
FLOOR A/T | AT with a floor arrangement of the selector lever |
COLUMN A/T | АТ with the selector lever located on a steering column |
NORM | Normal mode of operation of AT |
PWR | Sports mode of functioning of AT |
Circuit breakers
Characteristic | Meaning |
A/C | air conditioner |
ALT | Generator |
AM1 | |
AM2 | |
CIG, CIGAR | cigarette lighter |
DOME | Interior lighting |
DRL | Daytime running lights |
ECU | Electronic control module |
ECU-B | |
ECU-IG | |
EFI | fuel injection system |
ENGINE | Engine |
GAUGE | Meters |
HAZ-HORN | Av. alarm - klaxon |
HEATER | heater |
HORN | Klaxon |
LEFT HI HEAD | High beam left headlight |
LEFT LO HEAD | Dipped beam left headlight |
LH HEAD | Left headlight |
OBD | On-board self-diagnosis system |
PANEL | Dashboard |
POWER | Nutrition |
RADIO | Radio |
RH HEAD | Right headlight |
RIGHT HI HEAD | High beam right headlight |
RIGHT LO HEAD | Dipped beam right headlight |
STA, STARTER | Starter |
STOP | Stop lights |
TAIL | Rear lights |
TURN | direction indicators |
WIPER | Windscreen wipers |
Ignition switch positions
Characteristic | Meaning |
OFF | Turned off |
LOCK | Steering column lock |
ACC | Parking |
ON | Included |
START | launch |
Tempostat operation control switch positions
Characteristic | Meaning |
RESUME/ACCEL | Return / Acceleration |
SET/COAST | Installation/Coasting |
CANCEL | Reset |
Positions of the heater fan speed selector switch
Characteristic | Meaning |
OFF | Off |
LO | Low speed mode |
M1 | Intermediate mode 1 |
M2 | Intermediate mode 2 |
HI | High speed mode |
Some of the terminals of the electronic control units
Characteristic | Meaning |
AC | air conditioner |
BATT | Battery |
+B | Positive battery terminal |
EGR | Exhaust gas recirculation system |
GND | Weight |
HT | A heating element (oxygen sensor) |
KNK | Knock sensor |
OIL | Oil |
OX | Oxygen sensor |
SL | Solenoid valve |
SP | Speed sensor |
STA | Starter |
TAC | Tachometer |