P1799

Test 541 Through 544:

Test 545:

Symptom:
P1799-CALCULATED OIL TEMPERATURE IN USE

When Monitored and Set Condition:
P1799-CALCULATED OIL TEMPERATURE IN USE

When Monitored:
Whenever the engine is running.

Set Condition:
The code will set if the thermistor voltage is out of range (below 0.07 volts or greater than 4.94 volts). The code will also set if continuous erratic thermistor voltage is sensed and/or thermistor temperature stays below 80 deg F. for an extended time.

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

Test 28 Through 32:

Test 33 Through 37:

Test 38:

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
SPEED SENSOR GROUND CIRCUIT SHORTED TO VOLTAGE
TRANS TEMP SENSOR SIGNAL SHORT TO GND
TRANS TEMP SIGNAL CIRCUIT OPEN
TRANS TEMP SIGNAL SHORT TO VOLTAGE
TRANS TEMP SENSOR RESISTANCE OUT OF TOLERANCE
TRS CONNECTOR DAMAGED
TRS TRANS TEMP SENSOR FAULTY
TRS TRANS TEMP SENSOR SHORTED
TCM SPEED SENSOR GROUND OPEN
TCM TRANS TEMP SENSOR SIGNAL SHORTED
TCM TRANS TEMP SIGNAL OUTPUT HIGH
TCM TRANS TEMP SIGNAL OUTPUT LOW