Many sedan owners Nissan Almera are faced with a situation where when you turn the key in the ignition switch, only a quiet click or silence is heard, and the engine does not start. At such a moment, the thought often arises that the starter itself is faulty, but the problem may be hidden in a much simpler and cheaper element - starter relay. This compact component is responsible for supplying high current from the battery to the traction relay, and its failure will paralyze the engine from starting.
Determining the exact location of the starter relay is critical for quick diagnosis. On different generations Nissan Almera (classic G15, restyling or model on the B0 platform) the arrangement of elements may differ, which causes confusion among inexperienced car enthusiasts. Erroneous attempts to check the starter without ensuring that the control element is in good working order lead to wasted time and unnecessary dismantling of the unit.
The right approach to troubleshooting starts with understanding your vehicle's electrical system architecture. You need to know how the mounting block is designed, which fuses are responsible for what, and how to visually distinguish the engine start relay from other similar elements.
General electrical diagram and relay purpose
Engine starting system Nissan Almera is built according to a classical scheme, where the high voltage current is controlled through a small signal from the ignition switch. Starter relay acts as a powerful electronic switch that closes the circuit between the battery and the starter motor. Without its operation, the current simply will not reach the mechanism, despite the serviceability of the battery and the starter itself.
It is important to understand that in modern vehicles the relay is often integrated into the main mounting block under the hood, rather than mounted separately on the body. This is done to protect against moisture, dust and mechanical damage. In the case of Nissan Almera generators and starters have specific wiring that requires careful study of the circuit specifically for your modification.
If you hear a distinctive click under the hood but the engine does not turn over, this may indicate that traction relay inside the starter does not work, or the control signal from the main relay is not supplied. It is necessary to distinguish between these two components, since replacing one will not solve the problem if the other is faulty.
- 🔋 Battery: Power supply that provides the required starting current.
- 🔑 Ignition switch: Provides a low strength control signal to the relay coil.
- ⚡ Starter relay: Amplifies the signal and closes the high current circuit.
Exact location of the relay block on different generations
The most common mistake owners make is looking for a relay in the passenger compartment or trunk. On all versions Nissan Almera (G11, G13, G15) The main relay and fuse box containing the starter control element is located in the engine compartment. It is covered with a black plastic casing and is usually located closer to the radiator or to the wall of the engine compartment (on the right side, when viewed in the direction of travel).
To access the relay, you must remove the unit cover. The lid is secured with latches that need to be carefully pressed out with a screwdriver or by hand. Under the cover you will find a layout diagram on which all the elements are indicated. The starter relay is usually marked START or ST, and sometimes a color code corresponding to the scheme.
If you have a model with a 1.6 liter engine (HR16DE series), the location may be identical, but the number of relays in the block may vary depending on the configuration. In some cases, the starter relay may be integrated into the engine control unit (ECU), which requires professional diagnostics, but in 90% of cases it is a separate module.
⚠️ Attention: Before removing the unit cover, be sure to disconnect the negative terminal of the battery to avoid short circuit if metal tools accidentally touch the contacts inside the unit.
- 📍 Location: Engine compartment, right side (along the wing).
- 🔧 Access: Removing the plastic cover with snaps.
- 📋 Marking: Look for the designation
STorSTARTon the cover diagram.
How to visually identify a faulty element
Once you have opened the relay block, you need to find the specific element. Externally, the starter relay is a small plastic cube with several terminals (usually 4 or 5 contacts). Unlike some other relays, the starter relay often has larger contacts inside due to high loads. Visual inspection allows you to identify obvious signs of damage, such as a melted body or signs of burning.
Sometimes the fault is not visible from the outside. In such cases, it is recommended to use the replacement method. If you have a spare relay with similar markings (for example, from the headlights or fan, if they are identical in design), try swapping it. If the car starts after replacement, it means the old relay has failed.
It is important not to confuse the starter relay with the fuel pump relay or ignition system relay, as they may be adjacent and similar in size. Diagram on the inside of the lid - your main guide. Check the pin locations and markings.
Проверка схемы:1. Найдите обозначение START на крышке.
2. Найдите соответствующий слот в блоке.
3. Убедитесь, что реле вставлено плотно.
⚠️ Attention: Do not try to remove the relay using too sharp tools, as you can damage the contacts in the socket, which will lead to poor contact even with a new, working element.
- The car won't start at all
- I hear a clicking sound, but the starter doesn't turn over.
- The starter turns but does not engage
- Difficult to find relay in block
Diagnostics and testing of relays with a multimeter
If the visual inspection is unsuccessful, an electrical test must be carried out. For this you will need a multimeter. Remove the relay from its seat and switch the device to resistance measurement mode (Ohm). Connect the probes to the relay coil (usually two of the four or five contacts). Normal resistance coils should be in the range from 60 to 100 ohms.
If the multimeter shows infinity (open) or zero (short circuit), the relay is faulty and must be replaced. You can also check the operation of the mechanical part: apply 12 volts to the coil (you can use a battery), and you should hear a clear click, indicating the closure of the power contacts.
To check power contacts, use the dialing mode. When not in use, the contacts must be open (infinite resistance). After applying power to the coil, the contacts should close (the resistance tends to zero). This confirms the functionality switching mechanism inside the relay.
- 🔌 Checking the coil: Resistance 60-100 Ohm.
- 🔔 Click test: Trigger sound when 12V is supplied.
- 📏 Checking contacts: Short when triggered.
What to do if the relay is OK, but the starter does not work?
If the relay is triggered, but no current flows, the problem may be in the starter itself (wear of the brushes, broken windings) or in the power circuit from the battery to the starter. Check the power cable for oxidation or breakage, as well as the engine ground.
Step-by-step instructions for replacing the relay
The replacement process does not require special skills and takes no more than 10 minutes. Start by preparing your tool: you may need tweezers or a thin screwdriver to remove the relay if it is tight. Open the hood and locate the relay box in the engine compartment.
Remove the block cover, following the diagram as a guide. Pull out the faulty relay by gently pulling it up. Do not use excessive force to avoid breaking the plastic clips. Insert the new relay into the same socket, making sure it is fully seated and the contacts are aligned.
After installing the cover, replace the battery. Try starting the engine. If the starter starts to rotate, then the problem has been solved. Checking work should include several starting cycles to ensure that the contact is stable.
☑️ Replacing the starter relay
Signs of malfunction and indirect symptoms
The problem does not always manifest as a complete startup failure. Sometimes starter relay begins to work unstably, especially in cold weather or high humidity. This may mean that the car starts the first time in the morning, but takes several tries during the day. Such symptoms are often ignored until the problem becomes critical.
Another sign may be a sound different from the usual clicking sound. If you hear a crackling or frequent clicking sound when you try to start, this indicates that the contacts inside the relay are burnt and are not making a reliable connection. The current flows intermittently, which causes the protection to trip or unstable operation of the starter traction relay.
Also pay attention to the burning smell in the engine compartment. If you notice a burnt plastic smell after a failed start attempt, the relay may have overheated due to a poor connection or short circuit. In this case, operation of the vehicle is prohibited until the malfunction is eliminated.
Additional reasons for not starting
If replacing the relay does not help, the problem may be deeper. Often the culprit is oneself starter traction mechanism, which is located directly on the engine. It may become stuck or have worn brushes. In this case, the relay may operate, but not transmit torque.
Don't forget about the wiring. Oxidation of the battery terminals, poor contact at engine ground, or damage to the power cable running from the relay to the starter can prevent starting. Check all connections visually and tighten the bolts.
There is also a possibility of a malfunction in the ignition switch or immobilizer unit. If the security system does not recognize the key, it will not send a signal to the starter relay. In this case, only diagnostics from a specialist with the connection of a scanner will help.
⚠️ Attention: If you have replaced the relay, but the problem remains, do not try to briefly bridge the power contacts with a screwdriver to test the starter if you are not confident in your skills - this can lead to sparking and damage to the electronics.
Before purchasing a new relay, be sure to check the part number with the old element. Relays from different modifications of Nissan Almera may look the same, but have different electrical characteristics.
Choosing a high-quality analogue and original
When choosing a replacement part, it is important not to make a mistake with the manufacturer. Original relay Nissan has a number that can be found in the catalog. It is characterized by high reliability and durability of contacts. However, there are high-quality analogues from brands Denso, Stanley or Hitachi, which are often used as OEM suppliers.
Avoid buying cheap non-original relays without markings. They often use low-quality coil and contact materials, which quickly fail. Saving 200-300 rubles can lead to repeated breakdowns and the need to crawl under the hood again.
Pay attention to the packaging and the presence of protective holographic stickers. Make sure the number of pins on the new relay matches the old one. Different modifications may have different pinouts, even if the body is identical.
The correct choice of relay, taking into account the catalog number and markings, is the key to reliable engine starting for many years of operation without the need for repeated replacement.
Table of main relay characteristics
For ease of comparison and selection of parts, below is a table with the main parameters of the starter relay, characteristic of the line Nissan Almera.
| Parameter | Meaning | Note |
|---|---|---|
| Voltage | 12 Volt | Standard for passenger cars |
| Number of contacts | 4 or 5 | Depends on the scheme |
| Load current | up to 200 A | High starting current |
| Coil resistance | 60-100 Ohm | At room temperature |
| Housing type | Plastic | Moisture insulation |
Frequently asked questions and answers (FAQ)
Where exactly is the starter relay located on the Nissan Almera G15?
It is located in a black plastic block in the engine compartment, usually on the right side as the car moves, next to the battery or radiator. The block cover has a diagram with signatures.
Is it possible to start the engine if the starter relay is burned out?
In an emergency, you can carefully close the power contacts of the relay with a screwdriver (short circuit), but this is dangerous due to sparks and can damage the contacts. It is better to replace the element immediately.
Why does the relay click but the starter does not turn?
This may mean that the relay is working properly, but voltage is not supplied to the starter itself (poor contact, broken wire) or the traction mechanism inside the starter is faulty.
How to check the starter relay without removing it from the car?
You can try to gently tap the relay body, sometimes this helps restore contact, or use a multimeter to test the circuit, but it’s safer to remove it and check it on the table.
How much does it cost to replace the starter relay?
The cost of the relay itself varies from 1000 to 3000 rubles depending on the brand, and replacement takes 10-15 minutes, so the service will charge a minimum amount for the work.