Hello, I have an accurate MDX 2002. My husband water pres...


Hello, I have an accurate MDX 2002. My husband water pressure the engine and now my check engine light is on. We put the computer on and code P 0604 came out Mechanic's Assistant: Does the light stay on, or does it blink? ...

Hello, I have an accurate MDX 2002. My husband water pressure the engine and now my check engine light is on. We put the computer on and code P 0604 came out Mechanic's Assistant: Does the light stay on, or does it blink? Stays on the car turns on , but if I drive it decreases the acceleration Mechanic's Assistant: Are you fixing your MDX yourself? What have you tried so far? Yes he is fixing it


Good afternoon
Automotive Expert
Hi! My name is \*\*\*\*\* \*\*\*\*\* I will be able to assist you. I’m sorry that you’re having trouble with your vehicle. Don’t worry though, we’ll be able to figure this out. Please understand that I do not know your knowledge or capabilities so I **may** need to ask questions to find out basic information to help solve your specific problem. Sometimes it may take a moment for me to respond because I may have to look up information about your concern. I appreciate your patience and will provide responses as soon as possible. That is most likely an erroneous code. It's a code for a random access memory problem. I would clear the code and see if it comes back on. If it does then the wiring for the PCM must have gotten wet and you will have to replace the PCM (powertrain control module). My goal is to earn a 5 star rating experience. I hope that I have given you the information you needed. If you have any further questions about this concern, please feel free to reply back to me. If I’m not online at the time, I will respond ASAP when I get back. Thanks for being awesome and thank you for using JustAnswer!

How can I clear the code?
Automotive Expert
You can use a scan tool. The same one you used to retrieve the code.

Ok
Automotive Expert
Let me know if you need any more help. Thanks!

if for some reason I have to replace the PCM. Is it expensive, can he do it himself ?
Automotive Expert
It's not cheap. The PCM is about $600 and then it would have to be programmed by the dealership once it's installed before the engine will run. It's not very difficult to change it out though.

OK thank u
Automotive Expert
You're very welcome.

What others are asking

Smoke coming from muffler
Hi. Consider the weather, as this can change the diagnosis. Hot steam is a product of the operation of the gasoline engine. As the vehicle is running in cold weather, the hot air may be much more noticeable. On a...
AC Blower not Working
The most common failure for this problem is the blower control module (also known as the linear power module). The module should be replaced with a new one, after which you may notice the blower speeds higher than they were...
2012 GMC Sierra 2500HD No Blend Door Working
Hello, you are going to need a diagnostic chart for this type of issues. The chart gives you a process to a path of repair or replacement for each code. When you have many system codes (https://www.yourmechanic.com/article/how-to-read-and-understand-check-engine-light-codes-by-jason-unrau) you would first...
After i full with gas I got code P0420
Hello, thank you for writing in. When there are issue with the vehicle's gas recirculation system, the engine may pull in excess exhaust fumes. This will cause the engine to run rich and make the catalytic converter unable to compensate...
Hello, I have a 2011 chevy Cruze that beds the valve cover replaced. I already have the part. Will you please email me a quote for
Hi, I will be glad to help you with this. If you already have a new cover, the required service is valve cover gasket replacement as that service already includes removal and re-installation of the existing valve cover and, in...
My car will be in neutral but still stays at 1500 or 2000 rpms while driving
There are a number of things that can make a car jerk while you are cruising. Many of them would bring up a check engine light, but there are a few, like fuel pressure problems, that might not. With a...
Why is my car not accelerating Normal
The metallic noise could arise from a variety of sources; anything from the brakes to the engine. The origin could definitely be pinpointed by a certified mechanic during a vehicle noise diagnostic (https://www.yourmechanic.com/services/car-is-making-a-noise-inspection). Slow acceleration (https://www.yourmechanic.com/services/car-is-slow-to-accelerate-inspection) has a variety of...
hello, i was just informed that my actuator for my heat/air needs to be replaced. I see from other internet sites that people with
The manufacturer will not have a recall on anything that does not pose a safety hazard to the vehicle or persons when operating the vehicle. You will need to contact your warranty company directly to get them to look at...
Coolant is brown
The coolant level should be checked when the engine is cold. Typically you will check the level in the plastic recovery tank. If the level is low, or keeps dropping even after you top off the system, you might have...