VW Caddy | 2020-2026

Looking for Volkswagen Caddy fuse box diagrams? This article covers the fourth-generation Volkswagen Caddy (Model Code: SB), available from 2020, and includes fuse box diagrams for Volkswagen Caddy 2020, 2021, 2022, 2023, 2024, 2025 and 2026, along with details about the location of the fuse panels inside the vehicle and a clear explanation of the assignment of each fuse and relay (fuse layout), helping you quickly identify circuits and carry out electrical troubleshooting.

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Fuse Box (A)

Location and Diagram

High voltage fuses is located near the main battery in the engine compartment.

High Voltage Fuses

Assignment of the high voltage fuses on the battery (Fuse Box A)

Fuse Data
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No.AmpsDescription
SA1150AFuse holder B
SA250A
100A		Radiator fan (50A for models with single fan, 100A for models with dual fan)
SA3200ANot used
508–Connection and distribution box 2, Battery
SA4125AFuse holder C
SA5125AFuse holder C

Fuse Box (B)

Fuse Box Location

Fuse box B is located in the engine compartment on the driver side.

Fuse Box Diagram

Fuses

Assignment of the fuses in the engine compartment (Fuse Box B)

Fuse Data
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No.AmpsDescription
SB180APower steering control unit
SB27.5AABS control unit, Main relay (petrol), Terminal 30 voltage supply relay (diesel), Engine/motor control unit
SB37.5A
–		up to May 2022: Not used
from Jun 2022: Fuel tank shut-off valves 1-5 (engine code DHFA)
SB415AFront left headlight
SB515AFront right headlight
SB6–Not used
SB730AGearbox oil cooling pump
SB840ABrake servo
SB915AHorn relay
SB1030AWiper motor relays 1 & 2, Windscreen wiper motor
SB11–Not used
SB1215AMechatronic unit for dual clutch gearbox
SB1325AABS control unit
SB1420AAuxiliary heater control unit
SB1540AABS control unit
SB16–Not used
SB1740AAuxiliary air heater element (diesel)
SB1840AAuxiliary air heater element (diesel)
SB19 – SB20–Not used
SB217.5AEngine/motor control unit
SB2230AStarter
SB2315AEngine/motor control unit
SB247.5A (petrol)
10A (diesel)		Petrol: Oil level and oil temperature sender, Fuel pump relay, Activated charcoal filter solenoid valve 1, Exhaust camshaft control valve 1, Valve for oil pressure control, Inlet/Exhaust cam actuators for cylinders 2 & 3, Inlet camshaft control valve 1, Radiator fan, Relay for gas shut-off valves (engine code DHFA from Jun 2022), Gas tank valve (engine code DHFA from Jun 2022)
Diesel: Oil level and oil temperature sender, Automatic glow period control unit, Control unit for reducing agent heater, Relay for reducing agent metering system, Fuel pressure regulating valve, Fuel metering valve, Radiator fan
SB257.5AInjectors cylinders 1-4, Gas injection valves 1-4 (engine code DHFA from Jun 2022)
SB2610A / 15APetrol: Charge air cooling pump (10A)
Diesel: Heater element for crankcase breather, Valve for oil pressure control, Coolant regulating valve, Piston cooling jet control valve, Auxiliary pump for heating, Coolant pump for low-temperature circuit (from Jun 2022) (10A for engine code CRVD / 15A for engine codes DTRC, DTRE, DTRF)
SB2710A (petrol)
15A (diesel)		Petrol: Lambda probes 1 before/after catalytic converter
Diesel: Particulate sensor, NOx sender 3, Lambda probe 1 before catalytic converter, Control units 1 & 2 for NOx sender
SB2820AIgnition coils 1-4 with output stage (petrol)
SB2915A (petrol)
20A (diesel)		Fuel pump control unit, Fuel delivery unit
SB30 – SB32–Not used
F3340AAuxiliary air heater element (diesel)
F3430AHeated windscreen relay, Heated windscreen, Heated windscreen relay 2 (models with heated windscreen)
F3530AHeated windscreen relay 2, Heated windscreen (models with heated windscreen)

Relays

Assignment of the relays in the engine compartment (Fuse Box B)

Fuse Data
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No.Description
R1Main relay (petrol), Terminal 30 voltage supply relay (diesel)
R2High heat output relay
R3Horn relay
R4Starter relay 1
R5Starter relay 2
R6Fuel pump relay, Relay for gas shut-off valves (engine code DHFA)
R7Automatic glow period control unit (diesel)
R8Low heat output relay (models with auxiliary air heater element)
R9Heated windscreen relay 1
R10Heated windscreen relay 2
R11Wiper motor relay 1
R12Wiper motor relay 2

Fuse Box (C)

Fuse Box Location

Left-Hand Drive

For left-hand drive vehicles, Fuse Box B is located in the instrument panel on the driver side, to the left under the steering wheel.

Right-Hand Drive

For right-hand drive vehicles, Fuse Box B is located behind the glove compartment on the passenger side.

Fuse Box Diagram

Fuses

Assignment of the fuses in the passenger compartment (Fuse Box C)

Fuse Data
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No.AmpsDescription
C1–Not used
C230ARear fresh air blower control unit
C325ATrailer detector control unit
C430AControl unit for reducing agent heater (diesel)
C525AParking lock actuator
C6 – C730AOnboard supply control unit, Heater and air conditioning system control unit
C825ASpecial vehicle control unit
C930ADriver door control unit (LHD), Front passenger door control unit (RHD)
C1025A
–		up to May 2023: Special vehicle control unit
from Jun 2023: Not used
C1115ATrailer detector control unit
C12 – C1340AOnboard supply control unit
C1440ADC/AC converter with socket, 12 V – 230 V
C15–Not used
C167.5AAirbag control unit, Control unit for wireless connection of seat occupied sensors
C1710ARelay for reducing agent metering system, Delivery unit for reducing agent metering system, Reducing agent tank (diesel)
C1810A
7.5A		up to Feb 2021: Control unit for electronic steering column lock, Entry and start authorisation control unit, Control units 2-5 for break-in protection (10A)
from Mar 2021: Same components (7.5A)
C197.5ADash panel insert, Emergency call module control unit and communication unit
C207.5AStorage compartment with interface for mobile telephone, Transmission and reception stabilisation control unit, USB connection 1
C217.5AInterior light relay, Blind Spot Monitor control units 1 & 2, Rear overhead view camera
C22–Not used
C2315AContact strip in left B-pillar
C2415AAll-wheel drive control unit
C2525ASpecial vehicle control unit
C2630AFront passenger door control unit
C2725ASpecial vehicle control unit
C28–Not used
C2915ATrailer detector control unit
C3020A
30A		up to Feb 2021: Control unit 1 for information electronics (20A)
from Mar 2021: Control unit 1 for information electronics (30A)
C3125ATrailer detector control unit
C3215ARear lid control unit
C3315AContact strip in right B-pillar
C34–Not used
C3540AOnboard supply control unit
C3640AFresh air blower control unit
C37 – C39–Not used
C407.5AAlarm horn
C417.5A
5A		up to Feb 2021: Data bus diagnostic interface (7.5A)
from Mar 2021: Data bus diagnostic interface, Intermediate circuit capacitor 1 (from Jun 2022) (5A)
C427.5ASelector mechanism, Selector lever position display
C4310AHeater and air conditioning system control unit, Vehicle interior temperature sensor, Heated rear window relay, Tyre Pressure Monitoring System control unit, Remote control receiver for auxiliary heater
C447.5AElectromechanical parking brake button, Centre switch module in dash panel, Operating unit for lighting, Anti-theft alarm sensor, Air humidity/rain/light sensor, Front interior light
C457.5ASteering column electronics control unit
C467.5ADisplay unit for front information display and operating unit control unit
C47–Not used
C487.5Aup to Feb 2021: USB charging socket 1
from Mar 2021: Not used
C49 – C51–Not used
C5220ACigarette lighter, 12 V sockets U5, U19, U20
C53 – C57–Not used
C587.5AAdaptive cruise control unit, Parking aid control unit, Front camera for driver assist systems
C597.5AElectromechanical parking brake button, Reversing light switch, Pressure sender for refrigerant circuit, Relay for power sockets
C607.5ADiagnostic connection
C617.5AClutch position sender, Starter relays 1 & 2
C62–
7.5A		up to Feb 2021: Not used
from Mar 2021: USB charging socket 1
C63 – C65–Not used
C6615ARear window wiper motor
C6730AHeated rear window

Relays

Assignment of the relays in the passenger compartment (Fuse Box C)

Fuse Data
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No.Description
R1Relay for power sockets
R2Terminal 15 voltage supply relay
R3Heated rear window relay
R4Relay for reducing agent metering system (diesel)
R5 – R6Not used

Battery Fuses

Location and Diagram

The fuse box is located directly on the battery (+) in the engine compartment.

High Voltage Fuses

Assignment of the high voltage fuses on the battery (+)

Fuse Data
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ID.AmpsDescription
A400AStarter -B-
Alternator with voltage regulator -CX1-
B225ARelay and fuse carrier J for special vehicles -SRSJ- (for models with preparation for 2nd battery)

Single Fuses

Location and Diagram

For left-hand drive vehicles, the fuse box is located under the steering wheel, near the Fuse Box C.

For right-hand drive vehicles, the single fuses are located behind the glove compartment, near Fuse Box C.

Fuses

Assignment of the individual fuses in the passenger compartment

Fuse Data
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ID.AmpsDescription
A15AFront left lumbar support adjustment switch -E752- (Thermal fuse 1)
B15AFront right lumbar support adjustment switch -E753- (Thermal fuse 2)

Taxi Fuses

Location and Diagram

Taxi fuses are located in the passenger compartment near Fuse Box C, on the bottom right side of Fuse Box C.

Fuses

Assignment of the taxi fuses in the passenger compartment

Fuse Data
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ID.AmpsDescription
A20Aup to Oct 2022: Not assigned
from Nov 2022: Special vehicles control unit
B–Not assigned
C10ATaximeter, Mirror taximeter, Two-way radio
D10ATaximeter, Mirror taximeter

Sliding Doors Relay

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