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Every control module on the 1981-1984 Toyota Cressida — where it lives, replacement time, and what it takes to program a replacement.
Engine Control Unit (ECU)1.2 hr R&Rno coding
📍 Passenger kick panel, behind glove box
⚠️ 5M-GE EFI engine only (1981-1984). Carbureted 5M-E models have no ECU. Early Toyota EFI system with analog control, blink-code diagnostics via check engine light. Plug-and-play replacement.
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 1981 Toyota Cressida 2.6L I6 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.