2009 Infiniti Qx56 Repair Guides
P04422009 Infiniti QX56 P0442 — EVAP System Small Leak Diagnosis & Fix
EVAP system small leak detected. This is often a loose gas cap or small purge line issue in your Infiniti.
Moderate
1-2 hours
P06042009 Infiniti QX56 P0604 — Internal Control Module Random Access Memory Error Diagnosis & Fix
Internal control module RAM error in your Infiniti's engine computer.
Advanced
2-3 hours
P07232009 Infiniti QX56 P0723 — Output Speed Sensor Intermittent Diagnosis & Fix
Output speed sensor intermittent signal affecting your Infiniti's speedometer and ABS.
Advanced
2-3 hours
P11332009 Infiniti QX56 P1133 — Air Fuel Ratio Sensor 1 Bank 1 Response Diagnosis & Fix
Air fuel ratio sensor Bank 1 response issues affecting your Infiniti's fuel economy.
Moderate
1-2 hours
U01592009 Infiniti QX56 U0159 — Lost Communication with Front Sensor Module Diagnosis & Fix
Lost communication with module in your Infiniti. Check CAN bus wiring and modules.
Advanced
2-3 hours