Description
OBD-II Trouble Code Description for P0740 Kia
Torque Converter Clutch Circuit/Open
What does this mean?
OBD2 Code P0740 Kia definition:
The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). Lock-up piston operation will then be controlled. When the torque converter clutch solenoid valve is activated, the torque converter lockup clutch will engage creating a 1 to 1 RPM ratio between the transmission input shaft and the rotational speed of the torque converter. Lock-up operation, however, is prohibited when A/T fluid temperature is too low. When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.
Symptoms
Possible sumptoms of OBD code P0740 Kia
– Engine Light ON (or Service Engine Soon Warning Light) – Transmission shift shock – Vehicle may not shift into the highest gear
Causes
Possible causes of OBD code P0740 Kia
– Low transmission fluid level – Dirty transmission fluid – Faulty torque converter clutch solenoid valve – Torque converter clutch solenoid valve harness or connectors – Torque converter clutch solenoid valve circuit is open or shorted The Error code is generally activated on detection of the following conditions: Diagnostic trouble code P0740 Kia is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible Solutions
The OBD2 Code Information Be Applicable For Kia:
2013 Kia Sorento,2013 Kia Provo Concept,2013 Kia Niro Concept,2013 Kia K9,2013 Kia Cross GT Concept,2013 Kia Ceed SW,2013 Kia Ceed,2013 Kia Carens,2013 Kia CUB Concept,2012 Kia Soul,2012 Kia Rio,2012 Kia Ray,2012 Kia Picanto,2012 Kia K2,2012 Kia Grand VQ-R,2011 Kia Sportage,2011 Kia Sorento,2011 Kia Pro Ceed,2011 Kia Optima Hybrid,2011 Kia Optima,2011 Kia Naimo Concept,2011 Kia KV7 Concept,2011 Kia GT Concept,2011 Kia Cadenza,2010 Kia Venga,2010 Kia Soul,2010 Kia Sorento,2010 Kia POP Concept,2010 Kia Forte Koup,2010 Kia Forte,2010 Kia Ceed SW,2010 Kia Ceed,2009 Kia VG Concept,2009 Kia Soul,2009 Kia Optima,2009 Kia No3 Concept,2009 Kia Magentis,2009 Kia Borrego,2008 Kia eco ceed Concept,2008 Kia Pro-cee-d,2008 Kia Picanto,2008 Kia KOUP Concept,2007 Kia cee-d,2007 Kia Rondo,2007 Kia Kue Concept,2007 Kia Carens,2006 Kia Sportage,2006 Kia Spectra
Note:
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