Introducing the Jatco 6-Speed
with a 2.0L, 4-cylinder engine, and the 2010-and-later Scenic and Grand Scenic behind a 2.0L, 4-cylinder. The Renault designation for this transmis- sion is AJO. Mitsubishi — the only manufac-
turer offering the Jatco 6-speed in the U.S. market — uses it in their 2007-and-later Outlander equipped with a 2.4L, 4-cylinder or 3.0L V6 engine. The Mitsubishi designation is F6AJA. You’ll find this transmission model
listed in some scan tools, although the information available is limited. There’s plenty of excellent informa- tion available from Mitchell, Alldata, and through factory manuals. And cur- rently there’s at least one supplier that’s working on a rebuild kit for this unit.
Internal Components The component identification is
shown in figure 1. The geartrain is based on the Lepelletier planetary sys- tem. There are three driving elements: • Low Clutch — applied in 1st, 2nd, 3rd, and 4th gears. The Low Clutch transfers input torque from the 3-5 Reverse Clutch drum to the front internal gear (driven).
• 3-5 Reverse Clutch — applied in 3rd, 5th, and reverse. This clutch transfers the reduction internal gear input torque to the front sun gear (driven).
Figure 2
• High Clutch — applied in 4th, 5th, and 6th gears. The High Clutch transfers torque from the input shaft to the rear planet assembly (driven).
The three holding elements: • Low/Reverse Brake Clutch — applied in 4th, 5th, and 6th gears. It transfers the input shaft torque to the rear planet assembly (hold- ing).
• 2-6 Brake Clutch — applied in 2nd and 6th gears. The 2-6 Brake holds the rear sun gear stationary.
• One-Way Clutch — locked in 1st gear during acceleration. The One-Way Clutch holds the rear planet assembly stationary.
The component function and apply
chart are shown in figure 2. Failsafe is usually 3rd gear in drive, depending on the failure. The Transmission Control
14 Figure 3 GEARS January/February 2012
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