i drive 2004 volvo S40, it doesn't move smoothly, most often when decelerating. engine check is on and the drive sign keeps blinking. i checked and the system gives this two codes: P0740, P0700

Asked by Oct 27, 2014 at 05:38 AM about the 2004 Volvo S40 1.9T

Question type: Maintenance & Repair

ENGINE CHECK IS ON
DRIVE INDICATOR KEEPS BLINKING

1 Answer

24,665

P0740 - Torque Converter Clutch Malfunction Possible causes - Low transmission fluid level - Dirty transmission fluid - Faulty torque converter clutch solenoid valve - Torque converter clutch solenoid valve harness is open or shorted - Torque converter clutch solenoid valve circuit poor electrical connection Read more: http://engine-codes.com/p0740.html#ixzz3HLGH0SVN http://engine-codes.com/p0740.html P0700 Volvo - Transmission Control System Malfunction Possible causes - Shorted or open circuit within Transmission Control Module (TCM) - Faulty Transmission Control Module (TCM) Read more: http://engine-codes.com/p0700_volvo.html#ixzz3HLFVeEjP

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