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DTC P0740 Torque Converter Clutch (TCC) Enable Solenoid Control Circuit
Circuit Description
The torque converter clutch (TCC) solenoid valve is an electrical device that is used with the torque converter clutch pulse width modulation (TCC PWM) solenoid valve in order to control TCC apply and release. The TCC solenoid valve attaches to the transmission case assembly extending into the pump cover. The TCC solenoid valve receives ignition voltage through the ignition 0 voltage circuit. The powertrain control module (PCM) controls the solenoid by providing the ground path on the TCC solenoid valve control circuit. The PCM monitors the throttle position sensor voltage, the vehicle speed, and other inputs in order to determine when to energize the TCC solenoid valve.
When the PCM detects a continuous open, short to ground or short to power in the TCC solenoid valve circuit, then DTC P0740 sets. DTC P0740 is a type B DTC.
Consult your shop manual. If you don't have one, you can't be doing this job properly, as there are many torque values needed to do it right. Buy a cheap manual to be sure. My 2 cents.
Last I looked around 14 ft lbs. I advise you to convert to inch pounds and evenly tighten as per manual bolt sequence in three steps. I will mention you should double check my memory... I am fairly certain 12 to 18 ft lbs, but just the same go to youtube for a bid showing the correct method of torquing bolts.
For what it is worth many parts stores will let you get a peak at a manual.
Remove belt,center pulley, fan, and three bolts holding pump on. When tightening bolts, find out torque spec first, those little bolts will not take much.
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