P0204 on Nissan: Symptoms, Causes & Fix
Official technical diagnostic wire for fault code P0204 specifically affecting Nissan vehicles (Altima, Rogue, Sentra, Pathfinder, Frontier).
Select Your Nissan Model for P0204:
1. Common Symptoms on Nissan Vehicles
When Nissan Engine Control Modules (ECM) trigger fault code P0204, drivers typically report:
2. Root Causes on Nissan Engines
Historical diagnostic claims across Nissan engines point to the following failure distribution:
3. Step-by-Step Fix Protocol for Nissan
Measure resistance across pins (12–16 ohms). on Nissan engines.
Check that ECM pulse reaches the connector. on Nissan engines.
Replace the faulty injector with OEM unit. on Nissan engines.
Clear DTC memory and confirm smooth operation. on Nissan engines.
Equipment for Diagnosing Nissan (P0204)
Nissan OEM Replacement Sensor
Direct-fit replacement assembly engineered to OEM tolerances for Nissan.
AstroAI Auto-Ranging Digital Multimeter
Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.
BlueDriver Bluetooth Pro OBDII Scan Tool
Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.
4. Nissan P0204 Frequently Asked Questions
What does code P0204 mean on a Nissan?
On Nissan vehicles, P0204 indicates that the Engine Control Module (ECM) detected injector circuit malfunction - cylinder 4. This typically points to Faulty Cylinder 4 fuel injector or Broken wiring harness.
Can I continue driving my Nissan with code P0204?
No. Cylinder 4 is disabled, causing rough running and unburned fuel delivery issues. Because this code carries a Critical severity rating on Nissan powertrains, we recommend scanning live data values promptly to prevent secondary damage.
How much does it cost to fix code P0204 on a Nissan?
Estimated DIY parts cost ranges from $150 - $550 (DIY: $40 - $180), while professional shop repairs at an authorized Nissan dealership or independent specialist typically range from $180 to $380 including diagnostic labor.