Normal Operation
1. TORQUE CONVERTER CLUTCH (TCC) APPLICATION CONDITIONS:Engine coolant temperature must be above 70°C (158°F).
Moreover, TCC is ON in 2nd gear during kick down operation when engine coolant temperature is above 70°C (158°F).
Also, TCC is always ON in 2nd, 3rd & 4th gear when transmission oil temperature is above 140°C (284°F).
2. ATF WARNING LAMP
The ATF warning lamp will be constantly on (not flashing) if the transmission oil temperature is above 145°C (293°F).
The ATF warning lamp goes off again when the transmission oil temperature is below 125°C (257°F).
3. SPECIAL SHIFT PATTERN WHEN THE ENGINE IS COLD:
A special shift pattern is activated when the engine coolant temperature is below 70°C (158°F). (3-4 shifts for example are delayed for small throttle openings and will occur a few MPH higher)
4. SHIFT ALTERATION WITH TECH1 DIAGNOSTIC TOOL CONNECTED:
Shifts will be harsh when TECH1 is connected to TCM: Connection of TECH1 automatically forces maximum line pressure during shifts only.