P1738

Test 1 Through 3:

Test 4 Through 5:

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 116°C transmission oil temp. (240°F. trans oil temp).

POSSIBLE CAUSES
INCORRECT FLUID LEVEL
TRANSMISSION OIL PUMP FLOW
ENGINE COOLING SYSTEM MALFUNCTION
HIGH TEMPERATURE OPERATIONS ACTIVATED