Q: Codes

asked by on April 10, 2016

What you think—is this oil? I have these codes: PO741. Torque converter clutch circuit performance stuck off. Transmission control module TCM. Ignition advanced.

With all those codes the odds are that you have an electronic problem. With those that you have in particular, it can easily be a transmission control module (TCM). TCM is a problem. Have a mechanic give that component a full inspection first. You will want to get this checked sooner than later to prevent more damage in the future.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Key not working

There are many questions that should be answered before diagnosing this type of question. Does the key not turn the ignition, or does the ignition turn but the engine will not crank, or does the engine crank but with no...

Transmission is slipping

Hello. From what you describe it would appear that your vehicle may be experiencing more than one issue. The trouble code you have listed appears to be for an issue with the vehicle's fuel pressure sensor or circuit. It may...

Transmission damage

If you have a manual transmission this shouldn't matter - both the transmission and rear differential take 75W-90 gear oil. If however, you have an automatic transmission, filling the front differential with CVT transmission fluid could be a real issue....

Related articles

What Causes Spark Plugs to Wear Out?
Without operational spark plugs, your engine won’t run. If even just one plug were to fail, the change in functionality would...
How a Clutch Engages and Disengages
In In your car transmission, the clutch is a device that works to engage and disengage the moving parts of your drive shaft. For purposes of this discussion, we’ll focus on manual transmissions. The moving parts are the transmission input...
How Long Does a Glow Plug Last?
A A diesel engine is a very powerful and complicated piece of machinery. There are a variety of things that have to work together in order for the diesel engine to fire off and run as intended. Just like a...