In addition to the main fuse wire (Fusible Link) in the engine compartment, there is a main fuse box under the dashboard.

Overview

1972 USA Owners manual (Page 35 ... ):

[[1972#toc|]]

If a fuse needs to be replaced, refer to the specifications listed on the fuse box cover.

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Fuses

B110 uses the standard cylindrical fuses used by all cars until around 1980. The numbers are:

Nissan 25461-89901 or 08941-11000 FUSE (10A) Nissan 25415-89900 or 08941-11500 FUSE (15A)

AGC Type (All Glass, C length 1.25 inch), 1/4" diameter (approximately 6mm diameter x 30mm long). SFE20 type is the same.

IG: Ignition Switch Circuit > only HOT when key is in IGN position * 'W' 15 AMP Wiper, Washer, Heater * 'M' 10 AMP Meter, Reverse Lights, Alternator Regulator

Battery/Alternator Circuit > always HOT * 'L' 15 AMP Head Lamp * 'PT' 10 AMP Park lights, Tail lights * 'C' 15 AMP Radio, Clock, Cigarette lighter, Room lamp * 'H' 15 AMP Horn, Stop lights, Hazard lights

There are also two empty holes in the fuse box to hold two spare fuses.

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Location

It is located under the dash above the driver's right knee. It is bolted to a bracket on the bottom of the dash frame:

LHD

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Late Model

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Variations

#1 Buy at BProjects 15A 10A (with HEAD LAMP fuse marking) 15A 15A 10A 15A Album 23312 Original type

#2 (2nd source - up to '71-Mar) ___ no HEAD LAMP fuse 15A 15A 10A 15A Album 25765 GL,GX type

#3 (620 type: headlamp changed to 20A) 20A 10A (if used in a 1200, change to 15A HEAD LAMP fuse) 15A 15A 10A 15A Album 25767 620 type

Late Ute

Utes from 1982 feature rectangular fuses. Also eliminates the plug-in connectors on the back of the fuse box, which was a problem spot in older 1200s (now the harness wires go directly to the individual fuses, whereas formerly they ended at large spade connectors).

Album 23308 Album 23320

8110-8910 Variation 1 8910- Variation 2

The "ENGINE CONTROL" fuse was also used by B310 and other 1980s Datsuns. It is the main Ignition-switched feed for the engine harness. Feeds the vacuum cut, fuel cut, and auto-choke relay.

Australia

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B140

B140 1400 Bakkie

Unknown year fuse box used all ten fuses, unlike Japan or Australia

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15A-10A-10A-10A-15A-10A-10A-15A-15A-15A

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1982-1989

8110-8910 Variation 1 24311-G1900

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts/24311-G1900.jpg Album 27517

IGNITION イグニッション 10A COIL イグニッションコイル 10A ENGINE CONTROL インジンコントロール 10A METER REVERSE メーターバックランプ --- ACCESSORY アクセサリー 15A RADIO HEATER WIPER ラジオヒーターウイパー 15A LIGHTER シガライター BATTERY バッテリー 10A FLASHER　フラッシャー 10A TAILLAMP ROOMLAMP テールランプルームランプ 15A HORN STOPLAMP ホーンストップランプ 15A HEADLAMP ヘッドランプ指定した容量以外ノヒューズは入れないで下さい。 Please do not use other than specific capacity fuse.

G1900

http://i297.photobucket.com/albums/mm219/ddgonzal/sightings/forum/24311-G1900.jpg

1990-1994

95W type (late square fuse type) 24311-95W00 COVER,FUSE BLOCK Album 25772 IGNITION [ ] 10A Ignition Coil 10A Engine Control 10A Meter BackLamp ACCESSORY 15A Radio Heater Wipers 15A Cigar Lighter BATTERY 10A Flasher 10A TailLamp RoomLamp 15A Horn StopLamp 15A HeadLamp Please do not use other than specific capacity fuse. 24311 95W00 Fuse ??? ->

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Troubleshooting

Main: Blown Fuse

Wiring

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The instrument panel wiring harness has individual connectors to the Fuse Box:

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Battery Feed

BATTERY FEED powers L, PT, C and H fuses

http://i297.photobucket.com/albums/mm219/ddgonzal/Wiring_Battery-Feed.jpg

15A L Fuse: * Light Switch (head lamp circuit) http://i297.photobucket.com/albums/mm219/ddgonzal/Wiring_L.jpg

10A PT Fuse: * Light Switch (park & tail light circuits) http://i297.photobucket.com/albums/mm219/ddgonzal/Wiring_PT.jpg

15A C Fuse: * Cigarette Lighter * Radio * Clock * Room Lamp http://i297.photobucket.com/albums/mm219/ddgonzal/Lighter_Wiring.jpg

15A H Fuse: * Horn * Stop Lamps (brake lights) * Flashers (turn signals) http://i297.photobucket.com/albums/mm219/ddgonzal/Wiring_H.jpg

Ignition Feed

IGNITION FEED powers M and W fuses

http://i297.photobucket.com/albums/mm219/ddgonzal/Wiring_Ignition.jpg

10A M Fuse: * Voltage Regulator * Instrument Panel Gauge Regulator * Brake Lamp * Oil Pressure Lamp * Charge Lamp * Reverse Lamp * Hazards http://i297.photobucket.com/albums/mm219/ddgonzal/Wiring_Meter.jpg

15A W Fuse: * Wiper * Washer * Heater http://i297.photobucket.com/albums/mm219/ddgonzal/Wiring_W.jpg

Fusible Link

The Fusible Link ("Main Fuse") connects to the POS battery terminal about six inches from the battery. The fusible link is a special length of wiring that will melt if its rating is exceeded and is there to stop the electrics if the car is drawing too much power, like an open short circuit.

Main: Fusible Link

Cleaning

If your fuse box gets HOT or starts melting (but the fuse does not blow), then remove the fuse box and CLEAN it. Soak it in vinegar for 10 minutes.

Or if you are getting electrical equipment not working, clean the fuse box.

Why? Dirty connections cause undue resistance, eventually leading to overheating and partial melting:

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The reason that fuse lead is getting hot is because of resistance. This is pretty common with old-styled glass fuse boxes. You get resistance at either the fuse itself, or the connection between the fuse and the terminal — along with whatever other resistance is present in the wiring. The corrosion is at the fuse box connections, which is why it gets hot, and why it melts.

Disconnect the battery NEG terminal

Remove all the wires from the fuse box (take a photo first, or write down carefully which wire goes where). Mark each wire with a piece of tape.

Take the Fuse Box in the house and soak it. Fill a small bowl with distilled white vinegar from the grocery store. Soak for 10 minutes.

Rinse with water with a little Baking Soda mixed in -- this will nuetralize the acid from the vinegar. Then rinse with plain water

Dry thoroughly, or let dry overnight

Put a little dielectric greaseᴳ (a LITTLE not a LOT) on each copper terminal (front and back of fuse box). This will help prevent moisture corrosion

Part Numbers

B110

B110: 6-FUSE BOX -- Buy at BProjects 25410-H1000 BLOCK-FUSE B5415-H1000 COVER-FUSE BLOCK

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25410-H1100 ASS'Y-BLOCK, fuse (2 系統)(up to '71-Mar) GL,GX [no HEAD LAMP fuse] B5415-H1100 COVER-fuse block (2 系統)(up to '71-Mar) GL,GX [no HEAD LAMP marking] NILES FB206N-1 set

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/FB206N-1a.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/FB206N-1b.jpghttp://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Parts2/FB206N-1c.jpg Album 16900 Album 16901

25410-B5102 BLOCK-FUSE

08510-51212 SCREW, fixing fuse box (2) 08915-13510 WASHER-SPRING, fixing fuse box (2)

25461-89901/08941-11000 FUSE (10A) 25415-89900/08941-11500 FUSE (15A)

620

Datsun 620 USA FUSE BOX 25410-H1000 -0746 25410-B8000 0974-0476 25410-B8001 0576-0776 25410-B8002 0876-0877 25410-B8060 0878-

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* Original Manufacturer: NILES brand No. FB 206N * Fits B110 and 620. If used in B110, a 15A headlamp fuse should be fitted

B210

B210 * 25410-H6200 ASSY-BLOCK FUSE -0974 ** 25411-H6200 COVER-FUSE BLOCK -0974 * 25410-H7200 ASSY-BLOCK FUSE (YAZAKI) 1074- ** 25411-H7200 COVER-FUSE BLOCK (YAZAKI) 1074- * 25410-H7205 ASSY-BLOCK FUSE (SUMITOMO) 0476- ** 25411-H7205 COVER-FUSE BLOCK (SUMITOMO) 0476-

B310

B310: 8-FUSE BOX 08941-12000 20A FUSE * 25410-W5801 USA BLOCK ASSY-FUSE 25411-W5801 USA COVER-FUSE BLOCK * 25410-H9400 JDM BLOCK ASSY-FUSE 24511-H9400 JDM COVER-FUSE BLOCK * 25410-W5001 JDM BLOCK ASSY-FUSE YAZAKI * 24511-W5001 JDM COVER-FUSE BLOCK YAZAKI

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