P1799

Test 647-650:

Test 651:

SYMPTOM:
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 code is set if any of the following conditions exist for three consecutive key starts:The thermistor voltage is out of range (below 0.07 volts or greater than 4.94 volts)
Set Condition: If continuous erratic thermistor voltage is sensed.The thermistor temperature stays below 80 deg. F for an extended period of time.

POSSIBLE CAUSES
- CHECKING SYMPTOMS AND POSSIBLE CAUSES
- LOW BATTERY VOLTAGE CAUSING SYMPTOM
- INTERMITTENT CODE P1799

Test 21-24:

Test 25-28:

Test 29-32:

Test 33-36:

Test 37-40:

Test 41-43:

SYMPTOM:
ADDITIONAL CALCULATED OIL TEMPERATURE IN USE (P1799)

POSSIBLE CAUSES
- TRANSMISSION TEMP SENSOR VOLTAGE OUT OF RANGE IN ANY GEAR
- TRANSMISSION TEMPERATURE SENSOR VOLTAGE NOT CORRECT FOR FLUID TEMP
- INTERMITTENT OPEN OR SHORT IN TRS TO TCM HARNESS
- SPEED SENSOR GROUND CIRCUIT OPEN AT INLINE CONNECTOR
- SPEED SENSOR GROUND CIRCUIT OPEN BETWEEN INLINE AND TRS
- SPEED SENSOR GROUND CIRCUIT SHORTED TO VOLTAGE
- SPEED SENSOR ERROR CAUSES CODE P1799
- TRANS TEMP SENSOR RESISTANCE OUT OF TOLERANCE
- TRS CONNECTOR DAMAGED
- TRS DAMAGED
- TRS TRANS TEMP SENSOR FAULTY
- TRS TRANS TEMP SENSOR SHORTED
- TRANS TEMP SENSOR SIGNAL SHORT TO GND
- TRANS TEMP SIGNAL CIRCUIT OPEN
- TRANS TEMP SIGNAL SHORT TO VOLTAGE
- TRANSMISSION TEMPERATURE CIRCUIT SHORT AT INLINE
- TRANSMISSION TEMPERATURE CIRCUIT SHORT BETWEEN TCM AND INLINE
- TRANSMISSION TEMPERATURE SENSE SIGNAL SHORT BETWEEN TRS/INLINE
- TRANSMISSION TEMPERATURE SENSOR SIGNAL SHORT BETWEEN TCM AND INLINE
- TRANSMISSION TEMPERATURE SIGNAL CIRCUIT OPEN BETWEEN TCM AND INLINE CONNECTOR
- TCM SPEED SENSOR GROUND OPEN
- TCM TRANS TEMP SENSOR SIGNAL SHORTED