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Fig. 455: Pressure Control Solenoid (PCS)
Courtesy of GENERAL MOTORS CORP.
Transmission Fluid Temperature (TFT) Sensor
The TFT sensor (1) provides the TCM with information on the transmission fluid temperature.
The TCM uses information from the TFT sensor to calculate the gear shift points and to engage the torque
converter loc
k-up function.
2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
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Page 3026 of 5127
Fig. 456: Transmission Fluid Temperature (TFT) Sensor
Courtesy of GENERAL MOTORS CORP.
Input Shaft Speed (ISS) Sensor
The ISS sensor (1) is located on the upper position of the transaxle and detects A/T input speed from the
rotation number of the direct clutch drum. They transmit to TCM as a signal.
2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
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Page 3027 of 5127
Fig. 457: Input Shaft Speed (ISS) Sensor
Courtesy of GENERAL MOTORS CORP.
Output Shaft Speed (ISS) Sensor
The OSS sensor (1) is located on the upper position of the transaxle and detects the vehicle speed from the
rotation number of the differential
gear.
2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
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Page 3028 of 5127
Fig. 458: Output Shaft Speed (ISS) Sensor
Courtesy of GENERAL MOTORS CORP.
Shift Control
When the AFT is below the specified 15°C (59°F), 4th up-shift is prevented.
SPECIAL TOOLS AND EQUIPMENT
SPECIAL TOOLS
Special Tools
IllustrationTool Number/ Description
2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
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Page 3029 of 5127
DT 46450 (DW 240-010)
Auto Transaxle Pressure Gage Set
DT 46451 (DW 240-020)
Brake/Clutch Spring Compressor
DT 46452 (DW 240-030)
Forward Clutch Adapter
DT 46453 (DW 240-040)
Direct Clutch Adapter
2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
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Page 3030 of 5127
DT 46454 (DW 240-050)
Overdrive Brake Adapter
DT 46455 (DW 240-060-01)
Brake Spring Compressor Bolt/Nut
DT 46456 (DW 240-060-02)
Brake Spring Compressor Plate
2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
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Page 3031 of 5127
DT 46457 (DW 240-070)
1st/Reverse Brake Adapter
DT 46458 (DW 240-080)
2nd Brake Adapter
DT 46459 (DW 240-090)
Planetary Ring Gear Remover
2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
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Thursday, July 16, 2009 1:17:34 PMPage 482 © 2005 Mitchell Repair Information Company, LLC.
Page 3032 of 5127
DT 46460 (DW 240-100)
Counter Drive Gear Installation Adapter
DT 46461 (DW 240-130)
Differential Preload Adapter
DT 46462 (DW 240-140)
Transaxle Housing Side Bearing Outer Race
Adapter
DT 46463 (DW 240-150)
Transaxle Case Side Bearing Outer Race Adapter
2006 Chevrolet Aveo
2006 TRANSMISSION Automatic Transaxle - Aisin (81-40LE) - Introduction (2 Of 2) - Aveo
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Thursday, July 16, 2009 1:17:34 PMPage 483 © 2005 Mitchell Repair Information Company, LLC.