Suzuk's Full Wiring Diagram

Full Wiring Diagram of Suzuki V-Strom SX 250 (BS6 / EFI)

I'm going to explain it systematically as a train mechanic, from entry light → control → start → charge → injection system → ABS.

1️⃣ Power Source System

🔋 12V battery

Duty:

Power the whole system.

Use the lights when starting.

Backup the light when the device is not stuck

Fire Trail:

Code

Battery → Main Fuse (Main Fuse) → Key Switch → Distributed to ECU and various devices

🔥 Main Fuse.

Protection of short circuits

If absent = whole car extinguished

🔌 Sub Fuse Box

Separate the fuse into parts such as:

Headlight

ECU

Tick pump

ABS

Turn signal

If one of the systems does not work → check the sub fuse first.

2️⃣ Ignition System

🔑 Ignition Switch

When twist the key ON:

Send + 12V to ECU

Power the house, Miles.

Turn on various relay circuits.

If ON then the fire is not up:

Main fuse check

Check the red wires from the battery

3️⃣ Primary Control System (ECU System)

🧠 ECU (Engine Control Unit)

Is the "mechanical brain" of the car.

Duty:

Nozzle control

Ignition control

Control the light walking cycle

Get values from different sensors.

Get a signal from:

Crankshaft sensor

TPS (Speeding Tongue)

O2 sensor

Machine temperature

Wheel Speed (ABS)

Send a signal to:

Fuel Injector

Spark plug coil

Gas station

Warning lights

4️⃣ Start System

🟢 Start button (Right Hand Switch)

Press the → power button.

⚡ Starter Relay.

Duty:

It's a high-voltage switch.

Get a small light from the start button.

Order the strong light from the battery to start the motor.

Working order:

Copy the code.

Press Start → Relay Works → Rotary Motor → Stuck Machine

If pressed and not rotated:

Check relay

Check the battery.

Check Brake / Clutch Switch

5️⃣ Charging System

⚙️ Stator / Alternator

Stay in the engine.

Create AC power when the machine rotates.

🔄 Regulator-Rectifier

Duty:

Convert AC → DC

Control pressure not exceeding ~ 14.5V

Charge back into battery

If not charged:

Measure the fire at the accelerated battery should get 13.5-14.5V.

If you get the same 12V = broken charging system

6️⃣ Fuel Injection System

⛽ Fuel Injector

The ECU ordered the nozzle:

Open according to the rhythm around the machine

Control the amount of oil

Sequence:

Code

Twist Key → Tick Pump Works → Generate Pressure → ECU Order Nozzle

7️⃣ ABS system

🛑 ABS Control Module

Get information from:

Front Wheel Sensor

Rear Wheel Sensor

Working on:

The wheels will lock.

ECU ABS Rhythmic Brake Pressure Release

If ABS light is on:

Wheel Sensor Check

ABS Line Check

ABS Fuse Check

8️⃣ Lighting / Signal System

💡 Turn Indicators

Control from the left switch.

🔔 Horn (Horn)

Fire from Bat → Horn Button → Ground → Loud

🛑 Front / Rear Brake Switch

Brake press → Brake light stick

Send a signal to the ECU.

9️⃣ Hand Switch System

Left

High / Low Light

Turn signal

Horn

Right.

Kill switch

Start button

Kill switch directly cut ECU power

🔟 The whole fire flow structure.

Code

Battery

⚡

Main Fuse

⚡

Ignition Switch

⚡

Sub Fuse

⚡

ECU

⚡

(Control the entire system)

📌 to chase a professional circuit.

Main Entry Light Check (Battery)

Check the fuse.

Check the lights after the key twist.

ECU power check

Ground check (very important)

Measure the pressure while starting.

# Electrical circuit # Automotive # lemon 8 diary # RitSpeed