16/09/2026
Infiniti 07A (RE7R01A) 7‑speed transmission TCM is one of the most frequent failure parts on many Infiniti models.
Typical symptoms: harsh shifting, no upshift, speedometer malfunction, stuck in gear.
Common DTCs: P0720, P0500, P1574
Applicable vehicles: Q50, Q70, QX50, QX70, G25, G35, FX35, FX37, FX50
Many owners waste money on full transmission rebuild while the real issue is just the TCM module.