Manual Gear Range Selection
Upshifts in the manual gear ranges are controlled by the shift solenoids. perform the following tests by accelerating at a 10% throttle angle.1. With vehicle stopped, move gear selector to manual third and accelerate. Check for a 1-2 shift and then a 2-3 shift.
2. With vehicle stopped, move gear selector to manual second and accelerate to 35 mph. Check for a 1-2 shift, make sure that 2-3 shift does not occur and that the TCC does not apply.
3. With vehicle stopped, move gear selector to manual first and accelerate to 20 mph and check that no upshifts occur and that the TCC does not apply.
4. With vehicle stopped, move gear selector to reverse and check that the 1-2 shift solenoid is on and 2-3 shift solenoid is off.