On-Car Exercises

Connect a Scan Tool to the vehicle you are testing and bring up the transmission information. (You may find it in the engine section.)

Which scan tool are you using:

Hanatech

Which vehicle are you using:

Mitsi Galant 1996

2.2 With the vehicle safely on jack stands or a lift (use the proper worksheet for that), safely drive the vehicle to allow it to shift up and down through the gears. View the solenoids as the vehicle shifts up and down. Record which solenoids are on in which gears:

With the shift lever in Drive or Overdrive:

First gear solenoids:

2nd / OD

Second gear solenoids:

LR / OD

Third gear solenoids:

2ND / LR

Fourth gear Solenoids:

LR / UN

View the Torque Converter Clutch as you safely drive the vehicle. Record when it is when it is on or off:

Torque Converter Clutch ON:

The torque converter clutch didn't come on until 1400rpm in 3rd gear.

Torque Converter Clutch OFF:

It remained off from start up to 1400rpm in 3rd gear.

What effect does the brake pedal have on the Torque Converter Clutch operation?

When the brake pedal was pressed, the slip RPM spiked from 33RPM to 204RPM

Create Shift Chart for your vehicle. Based on the operation of the shifting above, create a shift chart that describe what solenoids are on in which gear:

Gear 1st 2nd 3rd 4th

LR Solenoid 0.00% 99.47% 99.47% 99.47%

UR Solenoid 0.00% 0.00% 0.00% 99.47%

2nd Solenoid 99.47% 0.00% 99.47% 0.00%

OD Solenoid 99.47% 99.47% 0.00% 0.00%

DCC Solenoid 0.00% 0.00% 49.76% 77.11%