P1550
TCC Solenoid Valve
2007-2012 Nissan Altima 2.5L I4
Moderate SeverityPowertrain
Description
Fault in torque converter clutch solenoid for converter lockup.
Symptoms
- CEL
- No TCC lockup
- Poor highway fuel economy
- Shudder at cruise
- RPM flare
Common Causes
- Faulty TCC solenoid
- Damaged wiring
- Contaminated fluid
- Faulty TCM
Diagnostic Steps
- Test solenoid resistance
- Check fluid condition
- Inspect connector
- Monitor with scan tool
Repair Notes
Replace TCC solenoid.
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P1550 on Other Vehicles
Nissan 200SX
1995-1998 1.6L I4 GA16DE
Nissan 200SX SE-R
1995-1998 2.0L I4 SR20DE
Nissan 240SX
1995-1998 2.4L I4 KA24DE
Nissan 300ZX
1990-1996 3.0L V6 VG30DE
Nissan 300ZX Twin Turbo
1990-1996 3.0L Twin-Turbo V6 VG30DETT
Nissan 350Z
2003-2006 3.5L V6 VQ35DE
Nissan 350Z
2007-2009 3.5L V6 VQ35HR
Nissan 370Z
2009-2020 3.7L V6 VQ37VHR
Common Questions
What does code P1550 mean on a 2007-2012 Nissan Altima?
P1550 stands for "TCC Solenoid Valve". Fault in torque converter clutch solenoid for converter lockup.
What are the symptoms of P1550 on a Nissan Altima?
Common symptoms of P1550 include: CEL, No TCC lockup, Poor highway fuel economy, Shudder at cruise, RPM flare.
What causes P1550 on a 2007-2012 Nissan Altima?
Common causes of P1550 include: Faulty TCC solenoid, Damaged wiring, Contaminated fluid, Faulty TCM.