P0740

Test 1:

Test 2-6:

SYMPTOM
P0740-TORQUE CONVERTER CLUTCH CONTROL CIRCUIT

WHEN MONITORED
During Electronically Modulated Converter Clutch (EMCC) Operation.

SET CONDITION
Transmission must be in EMCC, with input speed > than 1750 RPM. TCC-L/R Solenoid achieves the maximum duty cycle and can not pull engine speed within 60 RPM of input speed. Also when the transmission is in FEMCC and the engine slips TCC > than 100 RPM for 10 seconds. This DTC can take up to five minutes of problem identification before illuminating the MIL.

POSSIBLE CAUSES
- RELATED DTC P0750 PRESENT
- INTERNAL TRANSMISSION
- TRANSMISSION SOLENOID/TRS ASSEMBLY
- INTERMITTENT WIRING AND CONNECTORS