P1738

Test 1 Through 3:

Test 4 Through 9:

Test 10 Through 11:

Symptom:
P1738-HIGH TEMPERATURE OPERATION ACTIVATED

When Monitored and Set Condition:
P1738-HIGH TEMPERATURE OPERATION ACTIVATED

When Monitored:
Whenever the engine is running.

Set Condition:
The code will set if transmission oil temperature is greater than 240°F and an Overheat Shift Schedule is activated.

POSSIBLE CAUSES
CHECKING SYMPTOMS AND POSSIBLE CAUSES
LOW BATTERY VOLTAGE
TRANSMISSION OVERFILLED WITH OIL
ENGINE COOLING FANS MALFUNCTIONING
ENGINE COOLING SYSTEM MALFUNCTIONING
INTERMITTENT CODE P1738
TRANS OIL COOLING CAPACITY TOO LOW
TRANSMISSION OIL COOLER PLUGGED