K 1500 Truck 4WD V8-4.8L VIN V (2003)
Transmission Temperature Sensor/Switch: Description and Operation
TRANSMISSION TEMPERATURE GAGE
The IPC displays the transmission temperature as determined by the PCM. The IPC receives a class 2 message from the PCM indicating the
transmission temperature. The transmission temperature gage will default to 40°C (100°F) or below if:
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The PCM detects a malfunction in the transmission temperature sensor circuit.
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The IPC detects a loss of class 2 communications with the PCM.
