P1550moderate severityPowertrain
TCC Solenoid Valve
on 2002 Infiniti QX4 3.3L V6 · RWD
What this code means
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 on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0011
Intake Camshaft Position Timing Over-Advanced Bank 1
P0012
Intake Camshaft Position Timing Over-Retarded Bank 1
P0013
Exhaust Camshaft Position Actuator Circuit/Open Bank 1
P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1