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Used the Navigation System's DTC logdata function today and got the following DTC's. Searched web and found possible meaning of these codes, but for other vehicles. Trying to determine what these codes mean on this car. Any help will be appreciated.
The car stores codes until they are cleared. Random codes typically mean nothing. They could have been set when a dying battery was being used. Clear the codes and see what comes back. That's the only way to tell what your issue (assuming something is wrong) could be.
I have some of the same codes in my 06 but the GPS works fine although OnStar has failed. Many of the codes you posted are from the generic Internet and they may not be valid for an 05-06 RL. The PDF only has the P codes. No B codes. There are also red / green light flashes on OnStar showing what is wrong and I have been unable to find codes for that either. Dealer really doesn't want to be bothered it seems.
Example - I get the B2204 also but the NAV tracks us all the time correctly, and the test mode in the NAV shows it using 8 or 9 satellites. B2204 comes up every time I clear the mem but if it was a bad GPS antenna it would not be tracking 8 - 9 satellites.
Re your DTC's. Since three or four years ago we began to feel that Acura did not care about their clients. Some of the most recent customer service surveys show that their service now is pretty bad from what I read. Frankly I would not expect much help from Acura on a 10 year old car using electronics that they have in part abandoned. My opinion these days is that their cars are overly complex, over priced, and lack the support a high end car should have. I'll be surprised if anyone posts what these DTS codes are. Honda/Acura may not even have record anymore on a 10 year old car.
Last edited by merlin the wrench; Nov 16, 2015 at 10:29 AM.
Yea, I've been meaning to update this to say that the referenced Honda.pdf does NOT have the B (body) DTCs.
I've spent more time searching for these codes on the internet, and did find two that differ from what I found before. I believe they are applicable to the Acura, but have not yet got around to checking them. B1227: Open in outside air temperature circuit [Climate Control Unit] B1240: Problem in mode control linkage, doors, or motor [Climate Control Unit]
I totally agree with your assessment re the complexity of the Acuras. I've never worked on a family car this complex before.
When searching the internet I recall a picture showing a Honda manual that had the B codes. When time permits I'm going to spend some more time trying to identify it, and see if one is available at reasonable price.
Yea, I've been meaning to update this to say that the referenced Honda.pdf does NOT have the B (body) DTCs.
I've spent more time searching for these codes on the internet, and did find two that differ from what I found before. I believe they are applicable to the Acura, but have not yet got around to checking them. B1227: Open in outside air temperature circuit [Climate Control Unit] B1240: Problem in mode control linkage, doors, or motor [Climate Control Unit]
I totally agree with your assessment re the complexity of the Acuras. I've never worked on a family car this complex before.
When searching the internet I recall a picture showing a Honda manual that had the B codes. When time permits I'm going to spend some more time trying to identify it, and see if one is available at reasonable price.
I've seen the ones you have listed but two or three explanations and there is always a hand out for money at the bottom of the page as well as a disclaimer these may be wrong... Based on how many RL's for sale there are CPO by dealers in California, Oregon, Texas etc (-0-) one might guess that Acura didn't sell many, and dealers don't care to stock them hence no one has dropped in from Acura to say, "here let me help you with your RL codes." In fact my dealer had trouble finding out what those codes stood for when I asked them twice last month. They said they (service writer and shop foreman both 10 - 15 years with Acura) "THINK" the codes are informational only and not a sign of a problem. So why doesn't my OnStar work...... Pay them $2000 and they MIGHT be able to fix it. If you get the codes please post them. You can clear them and see what comes back. If the car battery is bad or low you will get a plethora of them.
let us know if B codes are there. I am getting B2000, B2204, B2205, B2206 and B1404. OnStar fails to work. The GPS sees 9 satellites and XM works along with traffic so it is hard to believe B2204 is a failed GPS antenna. Also the display always turns with the car.
Got the DVD with the two Acura manuals. It has everything I can think of about the Acura, including a wealth of body and powertrain DTCs.
Anyway, to help you out merlin, I checked out your codes:
B2000: Not found on the DVD
B2004 - 06: Found a note that said DTC 2200 - 2249: "It is an engineering mode and is not for trouble diagnosis."
B1404: Telephone module error. The DTC type is signal error. See troubleshooting image below.
Thank you. Your B code description is the same the dealer service thought they were. They missed the 1404. Time to decide whether to order a new module. $$$$$$$$$$$$$$
In between Glass and Hood. 
