P1799

SYMPTOM
P1799 - CALCULATED OIL TEMP IN USE

WHEN MONITORED
Whenever the engine is running.

SET CONDITION
The DTC will set if any of the three conditions are present. Thermistor voltage (Transmission Temperature Sensor) out of range. Continuous erratic thermistor voltage is sensed. Thermistor Temperature stays low for an extended period of time.

POSSIBLE CAUSES
- INTERMITTENT WIRING , 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 - CALCULATED OIL TEMP IN USE
- TCM - TRANSMISSION TEMPERATURE SENSOR HIGH
- TCM - TRANSMISSION TEMPERATURE SENSOR LOW