P1738

Test 1 Through 3:

Test 4:

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:Immediately when the Overheat shift schedule is activated (240 degrees trans oil temp).

POSSIBLE CAUSES:
TRANSMISSION OIL COOLER PLUGGED
ENGINE COOLING SYSTEM MALFUNCTION
HIGH TEMPERATURE OPERATIONS ACTIVATED
INCORRECT FLUID LEVEL