Automatic Transmission Control Module (ATCM)1.5 hr R&Rrelearn only +0.2 hr▸ programming details
📍 Under driver seat or behind center console (automatic transmission only)
🔧 Drive cycle adaptation
⚠️ Only on automatic transmission models from 1987+. Earlier automatics are purely hydraulic/vacuum controlled.
Engine Control Module (ECM)1.2 hr R&Rrelearn only +0.3 hr▸ programming details
📍 Passenger side kick panel, behind trim panel
🔧 Idle relearn procedure (drive cycle)
⚠️ 1984-1986 non-turbo uses different ECM than turbo; 1987+ uses ECCS system. ROM chips can be replaced for tuning but no factory reflashing capability.
Audio Control Unit (Radio/Audio Unit)0.8 hr R&Rno coding
📍 Center dash, integrated with head unit
⚠️ Premium Bose system has separate amplifier in cargo area.
Aftermarket tool coverage varies by software version and vehicle build — treat "aftermarket tool" rows as "usually possible" and verify against your tool maker's coverage list before promising a customer. Spot a wrong location or hour? Tell us — corrections ship fast here.
Size-standard part numbers — verify your connector type before buying. Rear blades are model-specific; check the package's vehicle list.
Fuel economy figures are EPA data via fueleconomy.gov (median across matching trims). Performance figures are compiled estimates for the 1989 Nissan 300ZX 3.0L V6 Turbo and can vary by trim.
🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years.