P0740

Symptom: P0740-TCC OUT OF RANGE

When Monitored and Set Condition:

When Monitored: The Torque Converter Clutch (TCC) is in FEMCC or PEMCC, Transmission temperature is hot, Engine temperature is greater than 38° C or 100° F, Transmission Input Speed greater than 1750 RPM, TPS less than 30°.

Set Condition: The TCC is modulated by controlling the duty cycle of the L/R Solenoid until the difference between the Engine and the Transmission Input Speed RPM or duty cycle is within a desired range. The DTC is set after the period of 10 seconds and 3 occurrences of either: FEMCC - with slip greater than 100 RPM or PEMCC - duty cycle greater than 85%.

POSSIBLE CAUSES
- RELATED DTC's PRESENT
- INTERNAL TRANSMISSION
- INTERMITTENT WIRING AND CONNECTORS

Test 1:

Test 2 - Test 5: