Contents Wiring diagrams Section: Automatic Trans All sections

Automatic Transmission: Overview Honda Fit I

Automatic Trans 1 illustration ~263 words

Special Tools Chart. Scheme 1

Scheme 1: Special Tools Chart

General Operation

The automatic transmission is a combination of a three-element torque converter and a triple-shaft electronically controlled unit which provides five speeds forward and one reverse. The entire unit is positioned in line with the engine.

Gear Operation

Gears on the mainshaft

  1. 3rd gear is engages/disengaged with the mainshaft by the 3rd clutch.
  2. 5th gear is engaged/disengages with the mainshaft by the 5th clutch.
  3. Reverse gear is engaged/disengaged with the mainshaft by the 5th clutch.
  4. Idler gear is splined with the mainshaft, and rotates with the mainshaft.

Gears on the countershaft

  1. Final drive gear is integral with the countershaft.
  2. 1st, 2nd, 3rd, and park gears are splined with the countershaft, and rotate with the countershaft.
  3. 4th-5th gear and reverse gear rotate freely from the countershaft. The reverse selector engages 4th-5th gear and reverse gear with the reverse selector hub. The reverse selector hub is splined to the countershaft so 4th-5th gear and reverse gear engage with the countershaft.

Gears on the secondary shaft

  1. 1st gear is engaged/disengaged with the secondary shaft by the 1st clutch.
  2. 2nd gear is engaged/disengaged with the secondary shaft by the 2nd clutch.
  3. 4th gear is engages/disengages with the secondary shaft by the 4th clutch.
  4. Idler gear is splined with the secondary shaft, and rotates with the secondary shaft.

The idler gear on the idler gear shaft transmits power between the mainshaft and the secondary shaft.

The reverse idler gear transmits power from the mainshaft reverse gear to the countershaft reverse gear, and changes rotational direction of the countershaft reverse.