What does code P1550 mean on Nissan vehicles?
The ECU detects a malfunction in the torque converter clutch (TCC) solenoid valve.
OBD-II Code Nissan
P1550 — Nissan — Torque Converter Clutch Solenoid Valve
The ECU detects a malfunction in the torque converter clutch (TCC) solenoid valve.
Common symptoms
- Shudder
- engine stalling
Possible causes
- TCC solenoid failure
Initial recommendation
Service transmission and replace TCC solenoid if necessary.
Safety notice
This information is for guidance only. Brand-specific codes may vary by model, year, engine, transmission and vehicle configuration. It does not replace a physical inspection or diagnosis by a qualified mechanic. If the vehicle is unsafe to operate, avoid driving it and seek professional inspection.
Analyze this code with MecaOBD
Use the app to combine Nissan code P1550 with your vehicle's actual symptoms for more complete diagnostic guidance.
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