My 04 FX 35 has 87k miles and is a joy. My SES light has been coming on every week or so for the past couple of weeks, always with a different code? It came on two days ago, then just went out all on it's own? I'm stumped?

What are the codes?

I can't give you the exact numbers but the first one indicated there was a communication problem in the system. The second one said there was a leak in the A/C system. But after reset, neither one has returned. Then, I had the SES light come on yesterday for a while, then it went out on it's own?

Have you ever drunk any liquids or spilled any liquids inside the vehicle?

Q45tech wrote:Have you ever drunk any liquids or spilled any liquids inside the vehicle?

jbharris317 wrote:I can't give you the exact numbers but the first one indicated there was a communication problem in the system. The second one said there was a leak in the A/C system. But after reset, neither one has returned. Then, I had the SES light come on yesterday for a while, then it went out on it's own?

It's a bit vague from your description but I have an idea of what you can do to fix this. What you need to do is remove the combination meter and tighten the ground on the interior bulkhead. There is also another common ground that should be retightened behind the glove box. If you need details on how to remove these things let me know and I'll get you some pictures and directions. It is not very difficult and requires a 10mm deep 3/8 socket a 12" extension ratchet and a phillips screwdriver.

Just take your FX to a reputable Infiniti dealership to have the codes interpreted and have the problems fixed.

do what stevethetech said to do that helps get rid of those comm codes