Designations on electrical equipment diagrams (Skoda Yeti 5L)

Contents: Designations on "A" and "B"…⬇ Designations "C" - "E" (generator,…⬇ Designations on "F" (sensors, sensor…⬇ Designations on "G" (sensors) ⬇ Designations with "H" (sound signals) ⬇ Designations on "J" (electronic…⬇ Designations on "K" and "L" (K/L,…⬇ Designations on "N" and "Q"…⬇ Designations on "S" and "T" (fuses,…⬇ Designations on "V" (electric…⬇

Numerical designations (points and connections of mass)

Note: The number in the rectangle at the end of the wire indicates the coordinate (within the same scheme) continuation of this wire.

1	Ground wire between battery and body
12	Ground point, in engine compartment, left
14	Ground point, on transmission
15	Mass point on cylinder head
78	Mass point, lower part of the right B-pillar
281	Ground connection #1, in the engine compartment wiring harness
283	Ground connection #2, in the engine compartment wiring harness
306	Mass connection (ignition coils), in the engine compartment wiring harness
327	Mass connection (sensor mass), in the engine compartment wiring harness
366-389	Ground connection #1-#24, in the main wiring harness
410	Mass connection #1 (sensor mass), in the main wiring harness
458	Ground point #3, in the engine compartment wiring harness
474	Mass connection (sensor mass), in the engine compartment wiring harness
607	Mass point, in the air intake chamber on the left
671	Mass point #1 at the front on the left side member

Designations on "A" and "B" (battery, starter, connections)

Note: All connections listed are located in the main wiring harness.

A	Battery
IN	Starter
B273	Positive connection (15)
B276	Positive connection (50)
B277-B282	Positive connection #1-#6 (15a)
B315-B327	Positive connection #1-#13 (30a)
B335	Compound 1(54)
B340	Compound 1(58d)
B344	Compound 1(61)
B350-B353	Connection 1-4 (87a)
B383-B385	Connection #1-#3 (cAN-P high bus)
B390-B392	Connection #1-#3 (cAN-P low bus)
B626/B627	Connection 2/3 (15)

Designations "C" - "E" (generator, connections, switches)

Note: All connections listed are located in the engine compartment wiring harness.

SH1	Generator with voltage regulator
D141	Connection (5V)
D174	Connection 2 (5V)
D189	Connection (87a)
D196	Compound 2 (87a)
E618	Hill Descent Control Switch

Designations on "F" (sensors, sensor switches)

F	D/W brake lights
F1	D/V engine oil pressure
F22	Engine oil pressure sensor
F47	Brake pedal position sensor
F378	Low pressure engine oil pressure switch

Designations on "G" (sensors)

G	Fuel gauge sensor
G1	Fuel gauge
G3	Coolant temperature gauge
G5	Tachometer
G6	Fuel supply system filling pump
G21	Speedometer
G28	Crankshaft speed sensor
G31	Turbo Boost Pressure Sensor
G39	Lambda probe
G40	SMR sensor
G42	IAT sensor
G61	Knock Sensor #1
G62	Coolant temperature sensor
G70	Mass Air Flow Sensor
G71	Intake manifold pressure sensor
G79	Accelerator pedal position sensor
G83	Coolant temperature sensor at the radiator outlet
G85	Steering wheel angle sensor
G130	Post-catalytic lambda probe
G169	Fuel gauge sensor #2
G185	Sensor #2 of the gas pedal position
G186	Throttle actuator
G187/G188	Throttle Position Angle Sensor #1/#2
G247	Fuel pressure sensor
G266	Engine oil level and temperature sensor
G273	Anti-theft alarm cabin volume sensor
G299	Intake air temperature sensor #2
G336	Intake manifold flap potentiometer
G384	Vehicle tilt sensor
G397	Rain and light sensor
G419	ESP sensor block
G476	Clutch position sensor
G581	Boost Pressure Regulator Position Sensor

Designations with "H" (sound signals)

H12	Anti-theft alarm siren

Designations on "J" (electronic control units, relays)

J59	Terminal X Load Relay
J104	ABS/ESP control unit
J151	Continuous coolant circulation relay, under driver's seat
J162	Heater control unit
J217	DSG transmission control unit
J234	SRS control unit
J245	Upper hatch cover drive control unit
J255	Control unit of the climate control system Clima-tronic
J271	ECM Motronic Power Relay (main relay)
J285	Control unit in the instrument cluster
J293	Radiator Fan Control Unit
J301	Climate control unit (with refrigeration unit)
J329	Power supply relay terminal 15
J338	Throttle body module
J345	Trailer Recognition Unit
J362	Immobilizer control unit
J364	Additional heater control unit
J367	Battery Monitoring Control Unit
J386/J387	Driver/Front Passenger Door Control Unit
J388/J389	Rear left/right door control unit
J394	Sunroof blind drive control unit
J400	Windscreen wiper motor control unit
J412	Mobile phone control electronics control unit
J446	Parking assistance system control unit
J453	Multifunction steering wheel control unit
J492	All-wheel drive control unit
J496	Additional coolant pump relay
J500	Power Steering Control Unit
J503	Control unit (with display) audio/navigation system
J519	On-board power supply control unit
J520	Control unit #2 for on-board power supply
J527	Steering Column Electronics Control Unit
J533	Diagnostic interface of data transmission buses
J538	Fuel pump control unit
J543	Driver's seat and left outside mirror adjustment control unit
J583	NOx Sensor Control Unit
J587	DSG Mode Selector Lever Sensor Control Unit
J623	ECM
J650	Multimedia system control unit
J667/J668	Left/Right Headlight Power Supply
J682	Terminal 50 Power Supply Relay
J743	DSG Transmission Mechatronic Unit
J745	Control unit for adaptive lighting and headlight range control
J757	Engine Compartment Component Power Relay
J791	Parking autopilot control unit

Designations on "K" and "L" (K/L, indicators, lamps)

TO	Instrument cluster
K3	K/L low pressure engine oil
K28	K/L overheating and low coolant level
KZ 8	K/L low engine oil level
K83	K/L MIL
K105	Low fuel indicator
K132	K/L electronic power control malfunction
K250	K/L anti-rollback system
L76	Key illumination lamp

Designations on "N" and "Q" (electromagnetic valves, injectors, actuators, spark plugs)

N30-N33	Injectors for cylinders No. 1-4
N70	Ignition coil #1 with output stage
N75	Turbocharger Pressure Regulating Valve
N80	EVAP canister purge solenoid valve No. 1
N127	Ignition coil #2 with output stage
N152	Ignition module
N₂05	Intake camshaft adjustment valve 1
N₂49	Turbocharger Air Recirculation Valve
N₂76	Fuel pressure regulating valve
N₂91/N₂92	Ignition coil #3/#4 with output stage
N316	Intake manifold flap valve
N428	Solenoid valve for regulating engine oil pressure
N492	Solenoid valve of the coolant circuit
Q23-Q26	Spark plugs for cylinders No. 1-4

Designations on "S" and "T" (fuses, connectors)

SA	Fuse holder A (see above)
SAx	Fuses No. x in holder SA (see above)
SB	Fuse holder B (see above)
SBx	Fuses No. x in holder SB (see above)
SC	Fuse holder C (see above)
SCx	Fuses No. x in holder SC (see above)
T1	1-pin connector
T2	2-pin connector etc.
T16	16-pin diagnostic connector