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Posted on Sep 16, 2011
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Obd 2 code p0741. What would cause this code???

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Marvin

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  • Cadillac Master 85,242 Answers
  • Posted on Sep 16, 2011
Marvin
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HERE IS THE DIFINTION
Automatic transmission torque converter clutch stuck off.
Possible causes - 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
- Transmission internal mechanical problem

2 Related Answers

Anonymous

  • 2049 Answers
  • Posted on Sep 06, 2009

SOURCE: OBD MIL STATUS RESULT

Po1860 will cause a false p0741. The diagnostics for p0741 requires that
po1860 is not a current code.

Po1860 is the Torque Converter Clutch circuit.
It means that the converter isn't locking up. Your mileage will suffer, but running without the converter locked will cause excessive heat and eventually will kill the transmission...that would be what i'd be most worried about...
there could be a number of reasons for this...could be as simple as the tcc solenoid, or as complex as the converter itself failing...which would mean you'd have to drop the cradle and seperate motor and trans to replace the converter...

Testimonial: "Yes very helpful. Thanks for the info. It will help me a decision whether or not to keep it or trade it in. "

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Anonymous

  • 1010 Answers
  • Posted on Jun 25, 2008

SOURCE: OBD 2 code showing 301

P0300, P0301, and P0302 are all misfire codes (cylinders #1 and #2, and a multiple/random misfire). The only time I've heard of this being related to a crank sensor is if the sensor were loose. Furthermore, a crank sensor issue should affect all cylinders equally. So I'd expect you'd have the P0300 only, or all the codes you have plus P0303 and P0304 (and P0305 and P0306 if a V6).

You should continue checking your secondary ignition system. Presuming the wires and plugs made no difference in the codes or condition, check the coil. You'll want to do your checking when the problem is occurring. Perhaps even mist the wires and coil with water to see if you can see a spark jumping. If you do indeed see a spark jumping, that is the location of your problem.

Another strategy you can use is to take the #1 and #2 plug wires (if accessible) off the plugs and just set them back in place without clipping back onto the plugs. Then, start the car, and gradually pull the wire(s) off the plug(s). The spark should come out of the end of the wire onto the plug. If it comes out of the coil or the side of the wire, then the problem is in the location of the spark.

If you're unable to find a secondary ignition problem, then you should begin investigating whether you have a fuel delivery or internal engine problem causing the misfire. Most engine issues will show up with a compression test. If you indeed are only misfiring on cylinders 1 and 2, you can swap those injectors with the others to see if the misfire follows the injectors.


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Related Questions:

0helpful
1answer

Should I worry about code P0741 still if the check engine light hasn't came back on?

Question edited for clarity. You don't need 'So' as the beginning of a sentence, dive straight in :>D
Please always include full 'year make model' in all questions as the first 3 words.

Sometimes codes can be transient, they are just at the point of flagging the code because many codes are based on time. For example, my car threw a code for the thermostat the Lexus dealership said I needed a new thermostat fitted.. I said to my Tire Guy / mechanic who is more honest than most, I have no problems, no over heating etc. He read the code and it was something like 'the coolant temperature does not rise to 92' F within 90 seconds. I got him to change it all all was fine.

So ignore the code unless it comes back. If your mystery vehicle has a transmission dipstick, check the fluid level

One reason for requesting 'year make model' is that some faults are common to a particular vehicles, a 'known issue'. Google

year make model P0741


P0741 OBD-II Trouble Code: Torque Converter Clutch ...

YourMechanic https://www.yourmechanic.com > Articles
P0741 is a diagnostic trouble code (DTC) for "Torque Converter Clutch Circuit Performance or Stuck Off". This can happen for multiple reasons and a mechanic ...

..
0helpful
1answer

2006 Hyundai Santa Fe 2.7. This is the one about the torque converter solenoid. Which one is it code P0741/P0742/P0743? I had it scanned said that was the problem on the valve body.

Question edited for a lot more clarity. Codes are P-Zero (0) not P-oh (o). Spelling also fixed.
Question moved to model category.

Here are your 3 codes with explanations and fixes. There are also a couple of videos, but one is in Spanish.


Hyundai Santa Fe P0743: Meaning, Causes, + Diagnosis

700r4transmissionhq.com https://www.700r4transmissionhq.com > p0743-hyund...
May 1, 2022 - P0743 is a generic OBD2 code that can occur in the Hyundai Santa Fe. It indicates that your ECU/TCM has found an issue with the torque ...

P0742 OBD-II Trouble Code: Torque Converter Clutch ...

YourMechanic https://www.yourmechanic.com > Articles
P0742 code means that the torque converter clutch circuit is behaving abnormally often due too dirty transmission fluid or valves.

Hyundai Santa Fe P0741 OBDII Transmission Code ...

700r4transmissionhq.com https://www.700r4transmissionhq.com > p0741-hyund...

Dec 11, 2018 - The vehicle's PCM (Powertrain Control Module) will throw the P0741 trouble code in the Santa Fe if there is a difference that is greater than ...
0helpful
1answer

P0741 code goes on and off.

vehicles do not throw codes, if they did you would have to pick them up. vehicles display or how codes


P0741 OBD II Trouble Code Torque Converter Clutch Circuit Performance or...
0helpful
1answer

2006 pontiac montana sv6 code p0741

The code is for a problem with the torque converter lockup circuit.
The circuit would need to be checked with a meter.
0helpful
1answer

Kia sportage 2008 4x4 is always on / always engaged

is a faulty transmission solenoid
pan off to replace it
Torque Converter Clutch Circuit Performance or Stuck Off

The Powertrain Control Module (PCM) will set the P0741 diagnostic trouble code when it notices a difference between the rotational speed of the torque converter and the transmission input shaft that is greater than 200 revolutions per minute (RPM).


P0741 OBD II Trouble Code Torque Converter Clutch Circuit Performance or...
2helpful
1answer

OBD MIL STATUS RESULT FAIL STATE INSPECTION CODE P0741 P1860

Po1860 will cause a false p0741. The diagnostics for p0741 requires that
po1860 is not a current code.

Po1860 is the Torque Converter Clutch circuit.
It means that the converter isn't locking up. Your mileage will suffer, but running without the converter locked will cause excessive heat and eventually will kill the transmission...that would be what i'd be most worried about...
there could be a number of reasons for this...could be as simple as the tcc solenoid, or as complex as the converter itself failing...which would mean you'd have to drop the cradle and seperate motor and trans to replace the converter...
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