Where is the smart fuse box located? - 2008 Smart fortwo

Unlikely to have a fuse covering it and the diagrams say there isn't one. It has a very low current use.

Check the pump itself for voltage using a test meter. It could also be the switch that is faulty.

https://www.google.com/search?q=Smart+Forfour+washer+pump+location

Fuse Box Diagram

https://fuse-box.info/smart/smart-fortwo-forfour-w453-2014-2018-fuses-and-relays

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What type headlamps ?
HEADLAMP (FOR USA) - XENON TYPE -..................46
HEADLAMP (FOR USA) - CONVENTIONAL TYPE -.
The headlamp operation is controlled by the lighting switch which is built into the combination switch and smart entrance control unit. And the headlamp battery saver system is controlled by the smart entrance control unit. OUTLINE NHEL0198S01 Power is supplied at all times I to headlamp LH relay terminals 1 and 3 I through 15A fuse (No. 68, located in the fuse and fusible link box), and I to headlamp RH relay terminals 1 and 3 I through 15A fuse (No. 69, located in the fuse and fusible link box), and I to smart entrance control unit terminal 49 I through 10A fuse [No. 13, located in the fuse block (J/B)]. When the ignition switch is in the ON or START position, power is supplied I to smart entrance control unit terminal 27 I through 10A fuse [No. 10, located in the fuse block (J/B)]. When the ignition switch is in the ACC or ON position, power is supplied I to smart entrance control unit terminal 26 I through 10A fuse [No. 1, located in the fuse block (J/B)] Ground is supplied I to smart entrance control unit terminals 43 and 64 I through body grounds M9, M25 and M87. Power Supply to Low Beam and High Beam NHEL0198S0101 When lighting switch is in 2ND or PASS position, ground is supplied I to headlamp LH relay terminal 2 from smart entrance control unit terminal 21 I through smart entrance control unit terminal 22, I from lighting switch terminal 12, and I to headlamp RH relay terminal 2 from smart entrance control unit terminal 59 I through smart entrance control unit terminal 60, I from lighting switch terminal 12. Headlamp relays (LH and RH) are energized and then power is supplied to headlamps (LH and RH).

Hi, you need to check fuses 10 and 15 in the engine bay fuse box. As a guide it is good practise to check all fuses if you think you have blown one, sometimes the fuse listings are wrong and sometimes a circuit is protected by more than one fuse.

Sorry but it is non - serviceable , location smart junction box ! If the relay were bad you would need to replace the smart junction box . Is the air bag light lit ! ( possible clock spring )
Inspection and Verification

1. Verify the customer concern.

1. Visually inspect the following for obvious signs of mechanical or electrical damage.

Visual Inspection Chart Mechanical Electrical

• Horn
• Horn switch (part of the steering wheel)

• Battery junction box (BJB) fuse 2 (50A)
• Smart junction box (SJB) fuse 14 (20A)
• Circuitry
• Clockspring
• BJB
• SJB

Symptom Chart Condition Possible Sources Action

• The horn is inoperative

• Fuse
• Circuitry
• Steering wheel switch harness
• Horn
• Clockspring
• Horn switch (part of the steering wheel)
• Smart junction box (SJB)

• Go To Pinpoint Test A .

It is located in the SJB smart junction box , it's a fuse / relay center / microprocessor ! Fuse # F2.10 30 amp . location -behind left side dash panel . Also check the accessory relay . Top relay left side , same location SJB .
Visual Inspection Chart Mechanical Electrical

• Door window regulator and motor
• Door glass top run
• Door window glass

• Loose, corroded connectors
• Circuitry
• Window control switch
• Battery junction box (BJB) fuse(s):
  • 1 (60A)
  • 3 (60A)
  • 11 (50A)
• Smart junction box (SJB) fuse(s):
  • 7 (20A)
  • 27 (10A)
  • 30 (10A)
• SJB circuit breaker 10 (30A)
• SJB rear window defrost relay 1
• Relay center box 1 rear window defrost relay 2
• Delayed accessory relay
• Battery saver relay
• Rear window defrost grid

Fuse/Relay Location: 24
Fuse Amp Rating: 20A
Passenger Compartment Fuse Panel Description: Horn Relay Feed

http://www.fordservicecontent.com/Ford_Content/catalog/owner_guides/08f23og1e.pdf

On this websites you find fuse box diagram and descriptions for Smart Fortwo (2008)

Smart Fortwo 2009 2010 fuse box diagram Auto Genius

http://www.carknowledge.info/smart-fortwo-2009-2010-fuse-box-diagram

hi fuse box is located at the passangers footwell the battery is under the carpet also at the left side footwell

Fuse #23 is a 15 amp fuse in the smart junction box. This fuse protects the lights in your question as well as the exterior rear view mirror lamps. the smart junction box is located under dash on driver side kick panel.