Question about 2004 Kia Sedona

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Where is wiring for torque converter located

Torque converter stuck off

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There is no electric torque converter you mean the lock up for torque which is inside the transmission pan you should see connector outside the the top of transmission but it is inside the lockup switch i have seen the wires break or burn but sometimes the switch itself burns out you can remove the pan and test the wire harness with a multimeter on ohms to see if the harness is good

Posted on Apr 07, 2014

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I have 2003 toyata Camry 4 cylinder fail diagnostic test p0741 code torque converter clutch circuit performance or stuck off but car drive like new so what is the solution to fix it


This code refers to a faulty torque converter clutch solenoid valve which is located in the transmission ( pan ). The code can be set if the transmission fluid is low/dirty causing the valve assembly to gum up and stick. The code can also be set if the valve is defective or the wiring to it has a problem. The most common problem is a bad valve

Sep 12, 2015 | Cars & Trucks

1 Answer

How to fix


P0741 Torque Converter Clutch Circuit Performance or Stuck Off OBD-II Trouble Code Technical Description Article by Dan Weller ASE Certified Master Technician Torque Converter Clutch Circuit Performance or Stuck Off This diagnostic trouble code (DTC) is a generic OBD-II powertrain code. It is considered generic because it applies to all makes and models of vehicles (1996-newer), although specific repair steps may vary depending on the model. What does that mean? Modern vehicles equipped with automatic transmissions / transaxles use a torque converter between the engine and transmission to increase the engine torque output and drive the rear wheels. The engine and transmission are actually connected by a fluid coupling mechanism inside of the torque converter which is what multiplies the torque until the speeds equalize and create a "stall" speed where the difference in actual engine RPM and transmission input RPM is around 90% efficient. Torque converter clutch (TCC) solenoids commanded by the Powertrain control module/Engine control module (PCM/ECM) or the Transmission control module (TCM) to direct hydraulic fluid and engage the torque converter clutch to create a solid coupling and increase efficiency. The transmission control module has detected a fault with the circuit that operates the torque converter clutch solenoid. Note: This code is similar to codes P0740, P0742, P0743 and P0744. There may be other diagnostic trouble codes associated with the transmission control module that can only be accessed by using an advanced scan tool. If any additional transmission related DTC's appear in addition to the P0741, an electrical failure is likely. Symptoms Symptoms of a P0741 trouble code may include: Performance or Stuck Off Indicator Lamp (MIL) illuminated (a.k.a. Check Engine Light) Minimal decrease in fuel economy, this will not affect engine performance Potential Causes Causes of this DTC may include: Wiring harness to transmission shorted to ground Torque converter clutch (TCC) solenoid internal short Transmission control module (TCM) Diagnostic Steps for P0741 DTC Wiring harness - Check transmission wiring harness for damage or loose connections. Use a factory wiring diagram to locate the appropriate power source and all connection points between circuits. The transmission may be powered by a fuse or relay, and triggered by the TCM. Disconnect the transmission harness at the transmission connector, power source and TCM. Check for a short to ground inside the transmission internal wiring harness by locating the appropriate + and - pins for the torque converter clutch solenoid. Using a digital volt ohm meter (DVOM) set to ohms scale, check for a short to ground in the circuit with the positive lead on either pin and the negative lead to a known good ground. If resistance is low, suspect a short to ground the internal harness or the TCC solenoid - removing the transmission oil pan may be necessary to further diagnose the TCC solenoid. Test the wiring between the TCM and the wiring harness connector at the transmission case using the DVOM set to ohms. Check for a possible short to ground by moving the negative lead on the DVOM to a known good ground, resistance should be very high or over limit (OL). Torque converter clutch (TCC) solenoid - Check the resistance in the TCC solenoid and internal transmission wiring at the transmission case after removing the transmission harness plug (if applicable, some makes/models use a TCM bolted directly to the transmission case). Some makes/models use a transmission wire harness with the TCC solenoid and internal harness as a single unit. Using the DVOM set to ohms, check for a short to ground with the positive lead on either circit to the TCC and the negative lead on a known good ground. Resistance should be very high or over limit (OL), if it is low, suspect a short to ground. Check for voltage on the power side circuit of the TCC solenoid or at the wire harness connector at the TCM with the DVOM set to volts scale, positive lead at the wire being tested and the negative to a known good ground with the vehicles key on/engine off, battery voltage should be present. If no voltage is present, determine the loss of power back through the circuit using the manufacturers wiring diagrams for reference. Transmission control module (TCM) - Since the torque converter clutch is only activated during certain driving conditions, it will be necessary to monitor the TCM with an advanced scan tool to determine if the TCM is commanding the TCC solenoid and what the actual feedback reading is at the TCM. The TCC solenoid is normally controlled by a duty cycle to engage a more comfortable torque converter cluch engagement. To test if the TCM is actually sending the signal, a graphing multimeter set to duty cycle or a digital storage oscilloscope will be required as well. The positive lead is probed into the wiring harness plugged into the TCM and the negative lead to a known good ground. The duty cycle shold be the same as being commanded by the TCM in the advanced scan tool reading. If the cycle stays at 0% or 100% or is intermittent, re-check connections and if all wiring / solenoid is OK, the TCM may be at fault.

Read more at: http://www.obd-codes.com/p0741
Copyright © OBD-Codes.com

May 16, 2015 | Cars & Trucks

2 Answers

What is the meaning of code 1744 in 2004 mercury sable


torque converter clutch stuck or not working properly

May 27, 2014 | 2004 Ford Explorer

1 Answer

2002 ford escape v6 with trans code p1744 and 741


Unfortunately, the possible issues are numerous. The problem is most likely either your torque converter, or electrical issues with your transmission. Without knowing how the vehicle is acting, if it's drivable, when it trips the codes, etc, it makes it more difficult to accurately diagnose.

Here is what ford says about those codes...

SERVICE PROCEDURE
The torque converter clutch may not engage if one or more of the following conditions exist:
- Stuck converter regulator valve
- Stuck solenoid regulator valve
- Stuck bypass clutch control valve
- Stuck pressure failsafe valve
- Pump bore ring groove depth incorrect
- Worn pump shaft or damaged pump shaft seals
- Pump shaft internal sleeve loose (rattles)
- Turbine shaft seals damaged or missing
- Incorrect Torque Converter Clutch (TCC) solenoid
- TCC solenoid mechanically stuck or electrically inoperable
- Damaged internal wiring harness
- Incorrect gear ratio (wrong sprockets)
- Damaged or worn stator support
- Worn torque converter hub bushing
- Torque converter clutch worn or damaged
Use a scan tool to monitor the following PID's:
- TCC = Commanded duty cycle for TCC solenoid
- TCCMACT = Actual slip across the TCC, measured in RPM
- RPM = Actual engine speed
- TSS_SRC = Actual turbine shaft speed
- TCCRAT = Speed/Gear ratio of torque converter/transaxle

Hope this helps.

Feb 16, 2014 | 2002 Ford Escape

1 Answer

Torque converter circuit stuck on where is it located


it is part of the transmission torque converter clutch this is inside the bell housing, the trans must be removed to change the torque converter

Jul 26, 2010 | 1999 Buick Century

2 Answers

2004 kia spectra new trans & torque converter code po741 after install why


it could be wiring fault, check connections and for damaged or trappet wiring,or it can be torque convertor clutch solenoid

May 28, 2010 | 2004 Kia Spectra

2 Answers

Where is the Torque Converter clutch solenoid located on a 2005 Chevy Cavalier Auto Transmission?


Actually, the Torque Converter Clutch Solenoid is located within the transmission housing that is easily accessible through the transmission oil pan. The TCC solenoid may vary in location dependent upon manufacture but generally it is located as aforementioned. It can cause your vehicle to stall if stuck open or close because it controls loads to the engine via your torque converter which is located between the vehicle's engine and transmission. Also, make certain that you attempt to change the transmission fluid and filter before changing the TCC solenoid because that may be your underlying issue. If not, simply reuse your fresh oil and change the TCC soleniod.

Apr 27, 2010 | 2005 Chevrolet Cavalier

3 Answers

1999 Buick Park Ave Ultra Service Engine Light Code #P0742


The code PO742 indicates the torque converter clutch is stuck on.
The torque converter is what connects the engine to the transmission.
It engages and disengages according to signals from the pcm, to aid in
smooth shifting. There are a couple of things you can try. make sure trans. fluid is full, if thats ok check the 20 pin connector, located on left
side of car on top of transmission bell housing. Make sure there's no
corrosion or bent pins. If this clears the code your all set, if not you may
want to ask your mechanic and see what he/she recomends.
Hope this helps.
Good luck

Jan 19, 2010 | 1999 Buick Park Avenue

2 Answers

Yellow check engine light came on; code; P0741 refers to possible torque converter problem. car runs fine. what else could it be?


Audi code P0741 Torque Converter Clutch Circuit Performance or Stuck Off, THIS IS IN MOST CASES A STUCK TORQUE CONVERTER LOCK UP CLUTCH, U MAY NOT EVEN NOTICE THIS AS ALL GEARS WILL WORK JUST NO TORQUE CONVERTER LOCK UP, U WILL NEED TO VERIFY THE TORQUE CONVERTER CLUTCH CIRCUIT IS OK AND IF SO REPLACE THE TRANSMISSION TORQUE CONVERTER.

Jun 30, 2009 | 2001 Audi A6

2 Answers

Need to know what the trouble code numbers are


P0743 is the Torque Converter Circuit Solenoid.The solenoid plug is on the front of the transmission and has a dark green/white and orange/black wire. The dark green/white should have 12V on it from fuse #10 when the ignition is on. The orange/black is a grounding wire from pin 79 of the powertrain controller which should only be grounded when the car is going over 45 mph or so. You could check that the wire is patent between the plug and the powertrain plug (near 0 ohms). The solenoid is a coil or wire so it would have a low, but non-0 resistance, maybe less than an ohm, but still not 0. To really test it you would need an impedence meter, but a good digital ohmmeter should show it to be slightly more resistance than is shown when you test the resistance of the meter leads themselves.If the resistance, the patency, and the 12V supply is all shown to be OK, then I would suspect the solenoid is not functing properly. If you are getting torque converter lock up when you accelerate slowly from 40 to 50 mph then it is working and the code is false. P1899 Park or neutral position switch stuck in park or gear. Recap: P0743 Torque converter clutch circuit faulty, P1899 Position switch to park and nutral stuck. Check the wire harness and look for any clips may be lose or disconnected and wires condition. Good luck and keep me posted. be glad to help

Jun 06, 2009 | 2000 Plymouth Neon

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