Volkswagen Caddy 1.6L Diesel Engine (CAYD) Electrical Wiring Diagrams – Sensors, ECU & Circuits (2011–2015)

This Volkswagen Caddy 1.6L Diesel Engine (CAYD) Electrical Wiring Manual provides detailed schematics and diagrams for the 2011–2015 Caddy models. It is designed for professional technicians and workshops needing accurate factory-level wiring documentation.

⚙️ Systems Covered

• Engine Wiring Harness – Complete routing, pin-outs, and connector layouts

• ECU & Control Units

  • J623 – Engine Control Unit

  • J285 – Instrument Cluster

  • J519 – Onboard Power Supply Unit

  • J533 – Diagnostic Interface

• Sensors & Actuators

  • Oil Level & Temperature Sensor (G266)

  • Coolant Temperature Sensor (G3)

  • Fuel Level Sensor (G1)

  • Accelerator Pedal Module (G79/G185)

  • Brake Fluid Level Switch (F34)

• Indicator Lamps & Functions

  • Glow Plug Indicator (K29)

  • DPF Warning (K231)

  • Oil Pressure Warning (K3)

  • Check Engine Lamp (K83)

  • Electronic Throttle Control Lamp (K132)

• Electrical Circuits – CAN Bus communication lines, ground points, fuse assignments

📊 Technical Highlights

• Engine: 1.6L CR TDI CAYD, Euro 5

• Output: 75–105 HP versions

• Diagrams: ECU, sensors, fuses, relays, CAN Bus

• Color-coded wiring with OEM electrical codes

• Includes diagnostic testing points and fault-trace paths