Function: 4-speed longitudinal transmission (Aisin-Warner design) for SUV/RWD platforms (e.g., Suzuki Grand Vitara).

Key Features:

• Torque Capacity: 330Nm (paired with J24B engines)

• Gearset: Simpson planetary + overdrive unit

• Shift Logic: Adaptive learning for throttle pattern recognition

Failure Modes:

• 3-4 Clutch Burnout: Delayed shifts cause overheating (P0760)

• Valve Body Wear: Shift solenoid B sticks (harsh 2-3 shifts)

• Extension Housing Leaks: Rear seal degradation (fluid loss)

Critical Maintenance:

• Fluid: Suzuki ATF 3317 or Dexron III

• Band Adjustment: 1.5-2 turns past finger tight (every 60k km)

• TCU Reset: Required after fluid change

Pro Tip: Check converter clutch apply piston – worn rings cause TCC shudder (P0741).

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