P1799

Symptoms:
P1799-CALCULATED OIL TEMP IN USE

When Monitored and Set Condition: P1799-CALCULATED OIL TEMP IN USE
When monitored: Whenever the engine is running. The DTC is set if any of the following conditions exist for three consecutive ignition starts: The thermistor voltage is out of range (below 0.70 volts or greater than 4.94 volts)
Set condition: If continuous erratic thermistor voltage is sensed. The thermistor temperature stays below 27°C or 80°F for an extended period time.

POSSIBLE CAUSES:
INTERMITTENT WIRING AND CONNECTORS
SPEED SENSOR GROUND CIRCUIT OPEN
TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT OPEN
TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT SHORT TO GROUND
SPEED SENSOR GROUND CIRCUIT SHORT TO VOLTAGE
TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE
TRANSMISSION TEMPERATURE SENSOR INOPERATIVE
TCM - HI TRANSMISSION TEMPERATURE SENSOR
TCM - LO TRANSMISSION TEMPERATURE SENSOR