Action Taken By PCM
WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 GMC Sierra, 2002 Chevrolet Suburban, and 2002 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
PCM performs the following actions if DTC is set:
- The PCM does not illuminate the MIL.
- The PCM commands increased line pressure.
- The PCM freezes shift adapts.
- The PCM determines a default transmission fluid temperature using the following matrix:
- If the engine run time is less than 60 seconds, then default transmission fluid temperature equals 117°F (47°C).
- If engine coolant temperature is less than 68°F (20°C), intake air temperature is used.
- If the engine coolant temperature is 68-230°F (20-110°C), then default transmission fluid temperature equals engine coolant temperature.
- If the engine coolant temperature is greater than 230°F (110°C), then default transmission fluid temperature is set to 284°F (140°C) and transmission shift pattern is in hot mode.
- If engine coolant temperature and transmission fluid temperature DTCs are both set, then default transmission fluid temperature is 284°F (140°C).
- The PCM records the operating conditions when the conditions for setting the DTC are met. The PCM stores this information as failure records.
- The PCM stores DTC P0713 in PCM history.