Fuel pump fuse <em>Nissan Cefiro A32</em>: location, check and replacement

Nissan Cefiro A32 (V30/V31 body) is a legendary Japanese sedan that is still in demand due to its reliability and maintainability. However, even such cars eventually develop typical problems, one of which is fuel pump failure due to a blown fuse. If your Cefiro suddenly stalls or does not start, while the starter turns, but the engine does not catch, the culprit may be this small but critical element.

In this article you will find exact location of the fuel pump fuse for Nissan Cefiro A32 (including versions with engines VQ20DE, VQ25DE And RB20E/RB25E), step-by-step instructions for checking and replacing it, as well as common mistakes, which owners allow during diagnosis. We will also look at why a fuse may blow repeatedly and what to do about it.

Where is the fuel pump fuse located? Nissan Cefiro A32

B Cefiro A32 The fuel pump fuse is located in main fuse box, which is located inside the car. The exact location depends on the year of manufacture and configuration, but in 90% of cases it is:

• 🔧 Under the instrument panel on the driver's side (to the left of the steering column). The block is hidden by a plastic cover, which must be removed by prying it off with a screwdriver.
• 📍 In the glove compartment (less common) - in some versions for the Japanese market, the fuse box is located on the right side of the dashboard, behind a plastic trim.
• 🔋 Near the battery - in modifications with RB25DE the additional unit may be under the hood, but the fuel pump fuse is there never installed.

To avoid guessing, pay attention to fuse marking. B Cefiro A32 it is designated as:

• FUEL PUMP (on the block cover or in the manual),
• FP (abbreviated)
• Number 17 or 20 (depending on the year).

Fuse rating - 15 Amps (on all versions A32, including restyled ones). If you find a fuse with a different rating (for example, 10A or 20A), this not original — it needs to be replaced with the correct one!

Fuse box diagram Nissan Cefiro A32 (1994–2003)

Below is the current diagram for most versions A32. Please note that fuse locations may vary slightly depending on market (Japan, Europe, Middle East).

Number	Purpose	Denomination (A)	Notes
17	Gasoline pump (FUEL PUMP)	15	Main fuse for all engines
20	Injection system (EFI)	10	Responsible for the ECU, but not for the pump
25	Radiator fan	20	Often confused with pump fuse
30	Cigarette lighter	15	The denomination is the same, but the purpose is different!

Important! If there is no diagram on the block cover, take a photo of it before removing it or download the manual for your version Cefiro. On the Internet you often come across diagrams from other models. Nissan (For example, Maxima or Teana), where the location of the fuses is different.

How to distinguish the Cefiro A32 fuse box from other Nissans?

On the cover of the original block Cefiro A32 there should be an inscription CEFIRO or A32 in the upper right corner. If it is not there, it is a block from another model (for example, Primera P11, where the pump fuse number 15).

How to check the fuel pump fuse: 3 reliable ways

If the engine does not start, but the starter turns, first check the fuse. Here three methods, from simplest to most precise:

1. Visual inspection

   Take out the fuse and look at the light: if the jumper inside is burned out (broken), it needs to be replaced. However, this method not always accurate - sometimes the break is visible only under a microscope.

2. Testing with a multimeter

   Switch the tester to circuit test mode (diode icon) and touch the fuse contacts with the probes. If resistance 0 ohm - he is correct. If OL (break) - burned out.

3. Replacing with a known good one

   Take a fuse with the same rating (15A) from another socket (for example, from a radio) and insert it in place of the suspect. If the car starts, the problem is confirmed.

Warning: never use “bugs” (foil or wire jumpers) for testing. B Cefiro A32 this could lead to fire — the fuel pump circuit is not protected from short circuits on some versions!

Step-by-step instructions for replacing the fuel pump fuse

If the fuse is blown, you can replace it in 5 minutes. You will need:

• 🔧 Flat-head screwdriver (for removing the unit cover),
• 🔋 New 15A fuse (original Nissan 24540-31U00 or equivalent),
• 📸 Flashlight (so as not to confuse the nests).

Algorithm of actions:

1. Open the driver's door and remove the plastic trim under the steering wheel (pry it up with a screwdriver from below).
2. Find the fuse box - it is located to the left of the steering column, below the pedal assembly.
3. Remove the unit cover (it is secured with two latches).
4. Find the fuse FUEL PUMP (number 17 or 20).
5. Use tweezers or your fingers to remove the burnt-out fuse.
6. Insert the new one (pay attention to the polarity - the metal legs must line up with the guides in the socket).
7. Close the block cover and check the operation of the pump (when you turn on the ignition, you should hear a characteristic hum in the area of the gas tank).

Critical error: If after replacement the fuse burns out again, do not try to install a fuse of a higher rating (for example, 20A). This will lead to overheating of the wiring and possible fire. We need to look for the cause of the short circuit!

Why the fuel pump fuse blows: 5 main reasons

If the fuse blows repeatedly, the problem lies deeper. Here most common reasons for Nissan Cefiro A32:

• ⚡ Short circuit in the pump circuit - most often due to frayed or melted wiring under the rear seat (where the wires to the pump pass).
• 🔥 Faulty fuel pump — if the pump is jammed or is overloaded, the current consumption increases and the fuse blows.
• 💧 Corrosion in the pump connector — oxidized contacts create additional resistance, which leads to overheating.
• ⚠️ Incorrect alarm installation - many installers connect the pump blocker through a fuse, which leads to its overload.
• 🔋 Voltage surges in the on-board network - for example, due to a faulty generator or bad battery.

How to diagnose? If the fuse blows immediately after replacement:

1. Disconnect the fuel pump connector (it is located under the rear seat, under the hatch).
2. Insert a new fuse.
3. If it does not burn out, the problem is in the pump or its wiring.
4. If it burns out, look for a short circuit in the circuit from the fuse box to the pump connector.

⚠️ Attention: in Cefiro A32 with engines RB25DE A common problem is that the fuse block melts due to poor contact. If the plastic is around the socket FUEL PUMP darkened or deformed, the block must be replaced!

What to do if replacing the fuse does not help

If after replacing the fuse the fuel pump still does not work, check the following items:

• 🔌 Fuel pump relay - it is located in the same block (usually under number 5 or 6). When you turn on the ignition, you should hear a clicking sound. If not, the relay is faulty.
• 📶 Wiring from fuse box to pump — check the integrity of the wires (especially at the point where they cross the threshold of the body).
• 🛢️ The fuel pump itself — if you don’t hear a hum from the gas tank when you turn on the ignition, the pump could be faulty. Check the voltage at its connector (should be 12V with the ignition on).
• 🔧 Fuel level sensor - in rare cases, its malfunction blocks the operation of the pump.

Fuel pump relay diagnostics:

To check the relay, remove it from the block and apply 12V to contacts 85 (mass) and 86 (plus). Between 30 And 87 a contact should appear (checked with a multimeter in dial mode). If not, the relay needs to be replaced.

How to extend the life of the fuel pump and its fuse

To avoid repeated problems with the fuse and pump, follow these recommendations:

• ⛽ Don't drive with an empty tank — the fuel pump is cooled by fuel, and if there is not enough fuel, it overheats.
• 🔧 Clean your contacts pump connector every 50 thousand km (use a cleaner WD-40 or CRC).
• 🚗 Check the wiring under the rear seat for chafing (especially if the car is often driven off-road).
• 🔋 Use quality fuses - cheap Chinese ones often have high resistance, which leads to overheating.
• 🛠️ Change the fuel filter every 30 thousand km - a clogged filter causes the pump to work with overload.

Advice for owners Cefiro A32 with RB25DE: if you often refuel at dubious gas stations, install an additional fine filter in front of the pump. This will extend his life by 30–40%.

⚠️ Attention: If you have installed gas equipment, make sure that the gas pump does not run dry when switching to gas. B Cefiro A32 This is a common cause of pump failure.

FAQ: Frequently asked questions about the fuel pump fuse Nissan Cefiro A32

Is it possible to drive without a fuel pump fuse if it is blown?

No! Without a fuse, the pump circuit is not protected from short circuits. If a short circuit occurs, the wiring may burn out or even the gasoline in the tank may ignite. Always carry a spare 15A fuse with you.

What fuse can be used instead of the original one?

Any high-quality 15A fuse with flat contacts will do (standard ATO/ATC). Popular brands: Bosch, Hella, Littlefuse. Avoid no-name fuses - they are often inaccurately rated.

Why does the fuel pump work after replacing the fuse, but the car does not start?

Possible reasons:

1. Faulty fuel pump relay (does not supply voltage constantly).
2. Clogged fuel injectors or filter.
3. Out of order crankshaft position sensor (the engine does not receive a signal for injection).
4. Problems with immobilizer (if any).

Start by checking the fuel rail pressure (should be 2.5–3.0 kg/cm²).

Where to buy an original fuse for Cefiro A32?

Original fuse Nissan has an article number 24540-31U00. It can be ordered:

• At official dealerships Nissan (but they often refuse to work with Cefiro as with the outdated model).
• In online stores: Exist.ru, Autodoc, Emex.
• In auto electrical stores (for example, Chip and Dip).

Cost - from 50 to 150 rubles. Analogs are cheaper, but the original is guaranteed to fit in size and denomination.

Can the fuel pump fuse burn out due to bad gasoline?

No, the fuse does not blow due to bad gasoline. However, low-quality fuel can:

• Clog the filter, which will cause the pump to work with overload (which in the future will lead to its failure).
• Disable the pump itself (for example, due to the presence of abrasive particles in gasoline).

If, after refueling at a questionable gas station, the car becomes difficult to start, check the fuel filter first, not a fuse.