2021 Infiniti Qx56 Repair Guides
P04452021 Infiniti QX56 P0445 — EVAP Purge Control Valve Short Diagnosis & Fix
EVAP purge control valve circuit short detected in your Infiniti's evaporative emissions system.
Moderate
1-2 hours
P06202021 Infiniti QX56 P0620 — Generator Voltage Regulator Circuit Diagnosis & Fix
Generator voltage regulator circuit issues affect charging system in your Infiniti.
Moderate
1-2 hours
P07312021 Infiniti QX56 P0731 — Gear 1 Incorrect Ratio Diagnosis & Fix
Gear 1 incorrect ratio in your Infiniti transmission indicates internal mechanical issues.
Advanced
3-4 hours
P11482021 Infiniti QX56 P1148 — Closed Loop Fueling Control Bank 1 Diagnosis & Fix
Closed loop fueling control Bank 1 issues in your Infiniti's engine management.
Moderate
1-2 hours
U01712021 Infiniti QX56 U0171 — Lost Communication with CD DVD Module Diagnosis & Fix
Lost communication with module in your Infiniti. Check CAN bus wiring and modules.
Advanced
2-3 hours