DTC P0740: Notes
DTC P0740 DETECTION CONDITION AND POSSIBLE CAUSES
| DTC P0740 |
Torque converter clutch (TCC) system malfunction |
| DETECTION CONDITION |
- RPM difference between crankshaft (engine speed signal) and reverse clutch drum (input/turbine speed sensor signal) exceeds the pre-programmed value.
Diagnostic support note:
- This is continuous monitor (CCM).
- MIL illuminates if TCM detects the above malfunction conditions in two consecutive drive cycles.
- PENDING CODE is available.
- FREEZE FRAME DATA is available.
- O/D OFF indicator light does not flash.
- DTC is stored in TCM memory.
|
| POSSIBLE CAUSE |
- Low ATF level
- Deteriorated ATF
- Stuck TCC solenoid valve and pressure control solenoid
- Low line pressure
- Oil pump malfunction
- Stuck control valve
- Torque convert clutch malfunction
- TCM malfunction
|