Error code P1320 - one of the most common problems in ignition systems Nissan, which may appear on models from Qashqai to X-Trail and even GT-R. This error indicates a malfunction in the ignition coil control circuit, but its true causes often remain a mystery to owners. Unlike universal codes like P0300 (misfires), P1320 is specific to Nissan and requires a special diagnostic approach.

Many drivers mistakenly attribute this error to an “electronics glitch” and reset it through a scanner, but without eliminating the root cause, it returns after just a few kilometers. In this article we will look at why P1320, how to diagnose it correctly (including hidden nuances for different models Nissan), and what steps to take for repair - from simply cleaning the contacts to replacing the ignition module.

What does error P1320 mean on Nissan?

Code P1320 stands for "Ignition Signal Primary" — a problem in the primary ignition control circuit. Unlike misfire errors (e.g. P0301-P0304), this code indicates a malfunction to moment of sparking: in the circuit between ECU (electronic control unit) and ignition coils.

In systems Nissan with individual coils (for example, Qashqai J10/J11 or X-Trail T31/T32) ECU sends a signal to the coils through transistors in the ignition module. If the block detects an anomaly in this signal - for example, an open circuit, a short circuit, or a discrepancy with the expected voltage - it records P1320 and can put the engine into emergency mode.

  • 🔧 Primary circuit - this is the way from ECU to the coils (wires, connectors, transistors).
  • ⚡ Secondary circuit - high-voltage wires and spark plugs (error here P1320 does not occur).
  • 🚗 Typical models: Qashqai, X-Trail, Note, Juke, Pathfinder (with engines MR20DE, QR25DE, HR16DE).

It is important to understand that P1320 - this is not a death sentence for the engine, but a signal of a problem in management ignition. Ignoring the error may lead to misfires (P0300), loss of power and even damage to the catalyst.

📊 Which Nissan model did you encounter error P1320 on?
  • Qashqai
  • X-Trail
  • Note
  • Juke
  • Pathfinder
  • Other model

The main causes of P1320

Reasons for the error P1320 are divided into two groups: electric (problems with wiring, connectors, ECU) and mechanical (malfunction of coils, ignition module). Below is a complete list with clarifications for different engines Nissan.

Reason How it manifests itself Models/engines
Ignition coil malfunction Misfires, error appears when cold Qashqai J11 (MR20DD), X-Trail T32 (QR25DE)
Damage to wiring or connectors The error appears after rain or washing Note E12, Juke F15 (HR16DE)
Malfunction of the ignition module (IPDM) The error is accompanied by P0340 (camshaft position sensor) Pathfinder R51 (VQ40DE), Murano Z51
ECU problems The error does not reset, random codes appear (P0605, P0607) GT-R R35, 370Z

Particularly insidious corrosion in coil connectors - on Qashqai J10 And X-Trail T31 with engines MR20DE this is the most common reason. Moisture penetrates through microcracks in the seals, oxidizing the contacts. In this case, visually the connector may look normal, but the problem will only appear when checked with a multimeter.

⚠️ Attention: If the error P1320 appears along with P0340 (camshaft sensor), most likely the problem is in the ignition module IPDM. On models Pathfinder R51 And Murano Z51 this module often fails due to overheating.

How to Diagnose Error P1320: Step-by-Step Instructions

Diagnostics P1320 requires a systematic approach. Start with a visual inspection, then move on to checking the electrical circuits and only test last ECU and an ignition module. Below is a checklist for self-diagnosis.

1. Check for other errors (especially P0300, P0340, P0605)

2. Inspect the ignition coils for cracks, melting, corrosion

3. Check the connectors of the coils and the ignition module (IPDM) for oxidation

4. Measure the resistance of the coils with a multimeter (standard: 0.5–1.5 Ohm primary winding)

5. Check the integrity of the wiring from the ECU to the coils (break, short circuit) -->

To check coil resistance:

  1. Remove the coil from the engine (disconnect the connector and unscrew the mounting bolt).
  2. Connect the multimeter in ohmmeter mode to the contacts 1 and 2 (primary winding). Normal resistance - 0.5–1.5 Ohm.
  3. Check the secondary winding (contact 3 and high voltage terminal). Norm: 6–15 kOhm (depending on the coil model).

If the resistance is outside the normal range, the coil must be replaced. On Qashqai J11 And X-Trail T32 Often there are fake coils with low resistance - they fail after 10-20 thousand km.

How to check the coil control circuit with a multimeter?

1. Disconnect the connector from the coil.

2. Turn on the ignition (without starting the engine).

3. Measure the voltage between the contact 1 connector and weight. Must be 12 V.

4. Check for pulses on the contact 2 (you need an oscilloscope or LED probe). If there are no pulses, the problem is in the ECU or wiring.

For models with ignition module IPDM (For example, Pathfinder R51) additionally check:

  • 🔌 Availability 12 V on the module connector (contact B+).
  • 📶 Signal from camshaft position sensor (contact CMP).
  • 🔥 Condition of transistors in the module (if they overheat, they fail).

Common mistakes when repairing P1320

Many owners Nissan make critical mistakes when eliminating P1320, causing the code to reappear or the problem to get worse. Here are the most common mistakes:

  1. Replacing coils without checking wiring. If the problem is an oxidized connector or a broken wire, the new coils will quickly fail.
  2. Ignoring ECU Errors. If P1320 accompanied by P0605 (memory error ECU), first you need to reflash the block.
  3. Installation of non-original coils. On Qashqai J11 And X-Trail T32 cheap analogues often have the wrong resistance, which leads to an error P1320.
  4. Incorrect assembly after repair. For example, they forget to connect the ignition module connector IPDM on Pathfinder.
⚠️ Attention: On engines VQ35DE (For example, Murano Z51) error P1320 may appear due to a faulty camshaft position sensor. If replacing the coils does not help, check the sensor with an oscilloscope - its signal should be stable without gaps.

Another common mistake is error reset without test drive. After repair, you need to drive at least 50 km to make sure that P1320 not returned. On some models (for example, GT-R R35) the code can “hide” and appear only at high speeds.

💡

Before replacing ignition coils on a Nissan Qashqai or X-Trail, be sure to check the ECU firmware version. On some cars with firmware before 2015, error P1320 may be false due to a bug in the software. The solution is to update the software from an official dealer.

How to resolve error P1320: solutions for different cases

The repair method depends on the cause of the error. Below are step-by-step instructions for the most common scenarios.

1. Oxidation or damage to coil connectors

This problem is typical for Qashqai J10/J11 And X-Trail T31/T32 with engines MR20DE And QR25DE.

  • 🛠️ Disconnect the connectors from all coils.
  • 🧹 Clean your contacts special liquid (for example, CRC Contact Cleaner).
  • 🔧 Check the seals - if they are cracked, replace them.
  • 🔌 Apply dielectric grease on the contacts before assembly.

2. Malfunction of the ignition coil

If the coil resistance is not correct or cracks are visible on it, it must be replaced. For Nissan original coils have article numbers:

  • 📌 Qashqai J11 (MR20DD): 22448-4M015.
  • 📌 X-Trail T32 (QR25DE): 22448-3M000.
  • 📌 Pathfinder R51 (VQ40DE): 22448-AL500.

When replacing coils with Qashqai J11 And X-Trail T32 use only original parts or proven analogues (for example, Denso or NGK). Cheap reels without a brand often become the reason for repeated P1320.

3. Problems with the ignition module (IPDM)

On models with module IPDM (For example, Pathfinder R51, Murano Z51) if the transistors are faulty, the unit needs to be replaced. Article number of the original module: 28530-4M000.

Before replacing, check:

  • 🔋 Availability 12 V on contact B+ connector IPDM.
  • 📡 Signal from ECU (contact IGT).
  • 🌡️ Module temperature - if it overheats, the problem may be in the cooling system.
⚠️ Attention: On Pathfinder R51 And Murano Z51 module IPDM often fails due to corrosion inside the housing. If the block is wet or shows signs of oxidation, replace it entirely - repairing transistors will not provide long-term results.

4. ECU problems

If the error P1320 accompanied by codes P0605 or P0607, the problem may be in the firmware or hardware failure ECU. Solutions:

  • 🔄 Update the firmware from an official dealer.
  • 🔧 Check ECU power circuits (contacts B+ And GND).
  • 💻 Reflash the block with the help Consult-III Plus or XPROG.
💡

If P1320 returns after replacing the coils and checking the wiring, be sure to diagnose the ECU. On Nissans with VQ engines (such as the Pathfinder R51), a faulty control unit can simulate ignition problems.

Repair cost: original parts vs analogues

The cost of repair depends on the cause of the error P1320 and selected spare parts. Below is a cost comparison table for popular models Nissan (prices are valid for 2026, Russia).

Detail Original (₽) Analogue (₽) Models
Ignition coil 4 500–7 000 2 000–3 500 (Denso, NGK) Qashqai J11, X-Trail T32
Ignition module (IPDM) 12 000–18 000 8,000–12,000 (used or refurbished) Pathfinder R51, Murano Z51
Coil connector (repair kit) 1 200–2 500 500–1 000 (TE Connectivity) All models with MR20DE, QR25DE
Diagnostics + error reset 1 500–3 000 800–1,500 (unofficial service) All models

Savings on analogues are justified only for ignition coils (provided you choose proven brands). For module IPDM And ECU It is better to use original parts or refurbished units with a guarantee.

For example, on Qashqai J11 Replacing all 4 coils with original ones will cost 18 000–28 000 ₽, and analogues from Denso - in 8 000–12 000 ₽. However, cheap reels without a brand (1 500–2 500 ₽ per piece) often become the reason for repeated P1320 after 10–20 thousand km.

Preventing error P1320 on Nissan

To avoid reappearance P1320, follow these guidelines:

  • 🚿 Avoid high-pressure engine washing — water gets into the coil connectors.
  • 🔌 Clean your contacts once a year coils and ignition module with a special liquid.
  • ⚡ Use quality fuel — bad gasoline accelerates wear of the coils.
  • 🔧 Change spark plugs every 30–40 thousand km — worn spark plugs increase the load on the coils.
  • 📊 Read errors regularly scanner (for example, ELM327) - this will help identify P1320 at an early stage.

On models with engines MR20DE And QR25DE (For example, Qashqai J10, X-Trail T31) pay special attention to the seals of the coil connectors. Over time, they lose elasticity and moisture penetrates inside. Replace them at the first sign of cracking.

💡

On Nissan Qashqai and X-Trail with MR20DE engines, after replacing the ignition coils, be sure to perform the ECU “learning” procedure. To do this, disconnect the battery for 10 minutes or reset the errors with a scanner. This will help the control unit adapt to the new coils.

FAQ: Frequently asked questions about error P1320

Is it possible to drive with error code P1320?

Short term - yes, but not recommended. Error P1320 may lead to misfires (P0300), which increases the load on the catalyst and reduces its life. On some models (for example, GT-R R35) long driving with this error can damage ECU.

Why does error P1320 only appear when it is cold?

This is a typical sign contact oxidation or coil malfunction. At low temperatures, the resistance in oxidized connectors increases and ECU fixes the error. After warming up, the contacts expand and the problem temporarily disappears. The solution is to clean the connectors or replace the coils.

Could P1320 be caused by bad gasoline?

Directly - no, but indirectly - yes. Bad fuel leads to carbon deposits on the spark plugs, which increases the load on the coils. Over time, this can cause them to overheat and fail, which will lead to P1320. If the error appears after refueling, check the spark plugs and coils.

How can you tell the difference between a bad coil and an ECU problem?

If there is an error when replacing coils P1320 switches to another cylinder - the problem is in the coil. If the error remains on the same cylinder, it’s the fault ECU or wiring. Associated errors also indicate a malfunction of the control unit. P0605, P0607.

Do I need to update the ECU firmware for error code P1320?

Only if the error is accompanied by codes P0605, P0607 or appears after chip tuning. On some models (for example, Qashqai J11 until 2015) P1320 may be false due to a bug in the firmware. A software update from the dealer solves the problem.