If your Nissan Tiida suddenly stopped starting, and the starter turns, but the engine does not catch - the problem may lie in the fuel pump relay. This small but critical element is responsible for supplying voltage to the fuel pump, and its failure results in a complete lack of pressure in the system. Unlike fuel pump fuse, which simply burns out during a short circuit, the relay fails gradually: first, “floating” symptoms appear, then complete failure.

In this article we will look at Where is the fuel pump relay located on a Nissan Tiida? (including models C11 And C13 with engines HR15DE And HR16DE), how to check it with a multimeter without dismantling it, and also give typical signs of a malfunction. We will pay special attention A common mistake during diagnostics is confusing the fuel pump relay with the cooling fan relay, which are identical in appearance, but have different pinouts. The material is relevant for owners of cars produced from 2004–2017, including restyled versions.

Where is the fuel pump relay located on a Nissan Tiida?

B Nissan Tiida The fuel pump relay is located in fuse and relay box under the hood (so-called IPDM — Intelligent Power Distribution Module). This unit is located to the left of the battery, next to the air filter. To access it:

  1. Open the hood and disconnect the negative terminal of the battery (required!)
  2. Remove the plastic cover of the unit by pressing the latches on the sides.
  3. Under the cover you will see a diagram of the location of the relays and fuses.

Fuel pump relay Tiida C11/C13 denoted as Fuel Pump Relay and is marked R17 (for models before 2010) or R27 (for restyled versions after 2010). Externally, it is identical to other relays in the block, so refer to the diagram under the cover or the inscription on the relay body.

📊 What year is your Nissan Tiida?
  • Until 2010 (C11)
  • 2010–2013 (C11 facelift)
  • 2013–2017 (C13)
  • I don't know

Important: on some versions Tiida with ABS And ESP The fuel pump relay can be duplicated in the interior fuse box (next to the steering column). You can check this by relay number - original fuel pump relay for Tiida has an article number 25230-JK00A or 25230-4M01A.

Signs of a faulty fuel pump relay

Failure of the fuel pump relay manifests itself in different ways, depending on the nature of the failure. Here are typical symptoms that should alert you:

  • 🔴 The engine does not start, but the starter turns - the most obvious sign. At the same time There is no characteristic buzzing of the fuel pump when the ignition is turned on.
  • 🟡 The car starts only after several attempts. This indicates that the relay contacts are stuck.
  • 🟠 Floating speed or jerking when driving - the relay may periodically turn off, interrupting the fuel supply.
  • 🔵 Lights up Check Engine with errors P0190 (fuel pressure sensor circuit malfunction) or P0300 (multiple misfires).

Please note: similar symptoms may cause faulty fuel pump, clogged filter or wiring problems. To accurately diagnose a relay, you need to check it with a multimeter.

What to do if the relay clicks, but the fuel pump does not work?

If the relay makes a clicking sound when you turn on the ignition, but the fuel pump does not turn on, the problem may be:

1. **Open circuit** between the relay and the pump (check the wiring for breaks).

2. **Oxidized contacts** on the fuel pump connector (cleaning may help).

3. **The pump itself is faulty** (check the fuel pressure).

4. **Engine control unit (ECU)**, which does not send a signal to the relay (scanner diagnostics).

How to check the fuel pump relay with a multimeter

Checking the fuel pump relay for Nissan Tiida takes no more than 10 minutes and does not require special skills. You will need multimeter (or even a simple 12V light bulb) and a screwdriver. Follow the step by step instructions:

Disconnect the negative terminal of the battery|Remove the cover of the IPDM unit|Find the fuel pump relay (R17 or R27)|Prepare the multimeter in the "test" mode-->

Step 1: Check the control circuit (relay coil)

Set the multimeter to resistance measurement mode (200 ohms). Connect the probes to the contacts 85 And 86 relay (see diagram below). A working coil should show a resistance in the range 50–120 Ohm. If there is no resistance or tends to infinity, the coil has burned out.

Step 2. Checking the power circuit (contacts)

Switch the multimeter to dialing mode. Connect the probes to the contacts 30 And 87. When the relay is off, the circuit should be open (resistance is infinite). When 12V is supplied to the contacts 85 And 86 (you can use a battery) the relay should click and the circuit 30–87 close (resistance ~0 Ohm).

Step 3. Checking the voltage at the relay connector

Install the relay back into the block and turn on the ignition. Measure the voltage between the contact 86 (mass) and 85 (control signal from ECU). Must be 12V. If there is no voltage, there is a problem in the wiring or ECU.

Relay contacts Purpose Valid value
85 And 86 Coil (control) 50–120 Ohm
30 And 87 Power contacts (normally open) ∞ (open) / 0 ohm (when triggered)
85 (from ECU) Control signal 12V when ignition is turned on
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If you don't have a multimeter at hand, you can temporarily replace the fuel pump relay with a known good one (for example, a cooling fan relay). If the car starts, the problem is in the relay.

Step-by-step replacement of the fuel pump relay

If the diagnostics confirm that the relay is faulty, it must be replaced. For Nissan Tiida fit original relays from Nissan (article 25230-JK00A) or analogues from Bosch (series 0 332 014 150). The cost of the original is about 800–1200 rubles, the analogue is 300–500 rubles.

Tools:

  • 🔧 Flathead screwdriver (for removing the unit cover)
  • 🔌 Tweezers or small pliers (for removing the relay)
  • 🧤 Gloves (recommended to avoid static discharge)

Sequence of actions:

  1. Disconnect the negative terminal of the battery.
  2. Remove the unit cover IPDM under the hood.
  3. Find the fuel pump relay (R17 or R27) and carefully remove it with tweezers, shaking it left and right.
  4. Install the new relay, making sure it is seated all the way.
  5. Return the unit cover to its place and connect the battery.
  6. Check the operation of the system: when you turn on the ignition, you should hear a click from the relay and a short hum from the fuel pump.
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After replacing the relay, clear errors in the ECU memory by disconnecting the battery for 10-15 minutes or using a diagnostic scanner. This will prevent false positives Check Engine.

Common diagnostic mistakes

Many owners Nissan Tiida make typical mistakes that lead to incorrect diagnosis of the fuel pump relay. That's what can't do:

⚠️ Attention: Never check the serviceability of the relay “for spark” by closing the contacts 30 And 87 metal object. This can lead to a short circuit and failure of the unit. IPDM!
  • 🚫 Ignore fuse check. The relay may be fine, but fuel pump fuse (15A, denoted as Fuel Pump) burned out. It's in the same block IPDM.
  • 🚫 Confuse the fuel pump relay with the fan relay. They look the same, but have different pinouts. Rearrangement will lead to failure of both systems.
  • 🚫 Do not check the voltage at the fuel pump connector. Even if the relay is working properly, the problem may be a broken wire from the relay to the pump.

Another common mistake is do not take into account the state of the contacts in the relay block. Over time they oxidize, resulting in poor contact. If the problem remains after replacing the relay, clean the contacts in the unit socket using WD-40 or special contact fluid.

What to do if replacing the relay did not help

If after replacing the relay the fuel pump still does not work, the problem may lie in other elements of the system. Perform additional diagnostics:

  1. Check the fuel pump: Connect a multimeter to the pump connector (under the rear seat) and measure the voltage when the ignition is turned on. Should be 12V. If there is no voltage, the problem is in the wiring.
  2. Diagnose ECU: Treat errors as a scanner. Codes P0600–P0606 indicate a malfunction of the control unit.
  3. Check the weight: On Tiida The fuel pump mass is attached to the body under the rear seat. Oxidation of the contact can interrupt the chain.

If all checks have failed, but the car still does not start, the reason may be:

  • 🔋 Discharged battery (voltage below 11.5V blocks the operation of the fuel pump).
  • 🔌 Faulty immobilizer (on some versions Tiida it turns off the fuel pump).
  • 🛢️ Clogged fuel filter (creates excessive load on the pump).

FAQ: Frequently asked questions about the Nissan Tiida fuel pump relay

Is it possible to drive with a faulty fuel pump relay?

No. If the relay fails completely, the fuel pump will not work and the engine will not start. In the case of “floating” faults (the relay periodically turns off), driving is possible, but it is fraught with a sudden stop of the engine, which is dangerous on the highway.

How to distinguish a faulty relay from a blown fuse?

Fuel pump fuse (15A) when burnt out, it is visually identified by a broken thread inside. The relay can only be diagnosed by checking the resistance or replacing it with a known good one. If after replacing the fuse the problem remains, the relay or the pump itself is to blame.

Which relay can be used instead of the original one?

Instead of the original relay 25230-JK00A analogues are suitable:

  • Bosch 0 332 014 150
  • Hella 4RA 007 607-121
  • Meat & Doria 2523005000

The main thing is that the relay is 4-pin with normally open contacts and coil voltage 12V.

Why does the fuel pump relay click but the pump does not work?

This indicates that the relay is activated (the coil is good), but power circuit does not close. Reasons:

  • Oxidation of contacts 30 And 87 inside the relay.
  • Broken wire from the relay to the fuel pump.
  • Malfunction of the pump itself (wear of brushes, jamming of the rotor).

Check the voltage at the pump connector with the ignition on.

Where to buy a fuel pump relay for Nissan Tiida?

The original relay can be ordered from official dealers Nissan (article 25230-JK00A) or in online stores:

  • Exist.ru
  • Autodoc.ru
  • Emex.ru
  • AliExpress (search by item)

Cost - from 300 to 1200 rubles, depending on the manufacturer.