Default Temperatures
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 1998 GMC Savana Special, 1998 GMC Savana Camper Special, 1998 GMC Savana, 1998 Chevrolet RV Cutaway, and 1998 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
- If engine run time is less than one minute, VCM substitutes a transmission fluid temperature value equal to Intake Air Temperature (IAT) value, plus 5 degrees.
- If Engine Coolant Temperature (ECT) is less than 185°F (85°C), VCM substitutes a transmission fluid temperature value equal to IAT value, plus 10 degrees.
- If ECT is 185-230°F (85-110°C), VCM substitutes a transmission fluid temperature value equal to ECT value, plus 10 degrees.
- If ECT is more than 230°F (110°C), VCM substitutes a transmission fluid temperature value of 284°F (140°C) and transmission shift pattern is in hot mode.
- If ECT and TFT DTCs are both set, VCM substitutes a transmission fluid temperature value of 284°F (140°C).