P0741 is a very common trouble code. It’s know to affect the Chevy Silverado quite often. Here’s what it means:
2002 Chevy Silverado Z71 ext cab 5.3 150000 miles ABS lights and Brake light came on then the speedo went off and transmission wouldn't shift. Got the comp scanned and it said vehicle speed sensor problem. I was told there was only one on the transfer case but I found two. Figured out which one was bad and replaced. The P0700 code indicates that there’s a malfunction with your vehicle’s Transmission Control Module (TCM). This computer monitors your transmission and works with the Powertrain Control Module (PCM) and Engine Control Module (ECM) to shift gears when necessary. It’s an integral part of any modern automatic transmission.
P0741: Torque Converter Clutch Circuit → Performance or Stuck Off
The Silverado uses a clutch in the torque converter to lock the engine and transmission together at highway speed. P0741 can register whenever this connection is not happening at all or happening properly.
P0741 will not affect the way that your Chevy Silverado’s engine performs at all. It is purely a transmission related code. Although, the engine response may “feel” different without the torque converter locking.
P0741 Definition
The vehicles PCM (Powertrain Control Module) will throw the P0741 trouble code in the Chevy Silverado if there is a difference that is greater than 200 rpm between the transmission input shaft and the torque converter speed.
It is a generic powertrain code, which means that it has the same meaning regardless of who manufactured the vehicle (Silverado or not).
With P0741, the code gives you two reasons as to why the code has registered. They are:
- Performance– The clutch, like all clutches, is failing.
- Stuck Off– Somewhere in the Silverado’s wiring, there is an error that is keeping the TCC from engaging. More often than not, this is going to be the issue.
With this knowledge, there can only be so many things that are causing the P0741. We’ll discuss them directly below.
See Also: P0700 Chevy Silverado
Chevy Silverado P0741 Diagnosis
These are the most common problems that can cause the P0741 in the Silverado:
2016 Chevy Silverado P0700
- Bad Torque Converter Lock up Solenoid– The solenoid that allows the torque converter to lock up is often the culprit. Here’s a good article on how to diagnose and repair the TCC Solenoid. This can be a tough problem for the shade tree mechanic to deal with. It involves a lot of checking for circuit resistance and testing the wiring. That being said, it sure doesn’t hurt to follow the wiring and see if you can find any noticeable issues. Here’s how to use a scanner to diagnose it:
- Bad Torque Converter Clutch– The clutch itself can go bad, just like a manual transmission. The good news is that when this clutch goes out the transmission will still take you to where you need to go. Even if it does so at a slightly higher RPM.
- Short in the TCC– A short in the wiring going from the TCC to the TCM can cause the P0741.
- Bad TCM– The transmission control module itself can be the cause of P0741 in your Silverado. Although, it’s probably not going to be the first place that you should check. The wiring should be the first place that you should check, as it will most likely be the problem.
Silverado P0741 Symptoms
Here are the three main symptoms of P0741 in the Chevy Silverado: Whatsfake apk pro.
- Decrease in MPG– Since the converter cannot lock properly, fuel efficiency will decrease as highway RPM increases.
- Slightly Higher RPM at Speed– Increased RPM at higher speed is usually the most noticeable sign that there is something wrong with the TCC. It’ll feel like driving an older car. Locking torque converters only caught on in the late 70’s.
- Service Engine Soon– Even if there are no other symptoms of the P0741 OBDII code in your Chevy Silverado, the service engine soon light can cause it to fail inspection.
Good luck with the P0741 and your Chevy Silverado. If there is anything that you would like to add, please feel free to leave a comment below.
Chevy Silverado 2007 Code P0700
P0700 Chevy Silverado 2010
I have a 2009 Silverado truck and I put a 2010 Yukon Denali 6l80e trans in it. The truck previously had a 6l80e trans in it before and it went out. found a 2010 Yukon Denali 6l80e trans and it appeared to be a fit and that it would work. I've had it installed for 6 months and it shifts fine and never had any problems. But from day 1 of putting the 2010 trans in, the check engine light came on and has not gone off. I hooked my snap on scanner to it and it read a code of p0700 'TCM requested MIL illumination (symptom 00)- current DTC. Test failed since DTC Clear, history DTC, test not passed since power up, curent DTC since power up' on the engine side and a code of p2535 'ignition 1 high voltage' on the trans side. I did an hp custom tune on it and was able to delete the p0700 code from the engine side, but it will not let me delete the p2535 code from the trans side. I replaced the ignition switch and did troubleshooting on all other aspect's of the ignition switch and relays and it still did not turn the check engine light off or remove the code.
It also shows the p2535 code is 'undocumented' on the scanner. GM's transmission code manual does not even have the p2535 code listed as a code that a scanner could pick up for a problem.
Anyone have any idea how to remove this p2535 code and get the check engine light off? Everything has been tested and everything is running proper voltage in the ignition switch and entire ignition area. Battery is running proper voltage. No wires are corroded in the the ignition switch or on the battery. All relays and fuses are good. Replaced ignition switch just to see if it would work and clear the code and turn the check engine light off, but it didn't work.