Update. Battery fan was replaced earlier this week and charging system and AWD lights are now off. AWD is working again. I am cautiously optimistic that this is a long term fix.
See post #4 on the first page of this thread.Not sure why the AWD error is connected with the Charging system error...
First post to the Ridgeline Owners Club!
2017 Ridgeline as well. 31K miles. Has been used about 10-15 miles/ week since the start of this "Stay at Home" order here in PA. Battery charging and AWD errors also came on just this past Monday. Went to my dealership and they said that I am currently out of warranty so just to diagnose will be $135 - left to do more research before giving up. Has there been any update for any of the previous posts that had their battery fan replaced? I'm interested in getting one ordered and replaced if that helps to resolve this issue.
Good news, the dealer change the battery fan and the problems went away. With diagnostic, part and labor, it costed me 470$CAD. Very expensive... I am happy with the dealer for finding the problem and fixing it but not happy with Honda unless they recall and refund. Mine was not on warranty anymore (71,000km). The good thing about this is a saw how it feels running a front wheel drive Ridgeline without torque vectoring... Now I appreciate it even more !I had last week the same errors as described since and got the same diagnostic from the dealer today. They will replace the battery fan tomorrow. I will let you know if it fixes the problem. Thanks for the posts and replies, very very useful! I think there should be a recall on this.
I would be willing to bet that Honda charges way more than $3.So a shorted $3 fan can confuse the PCM into thinking the alternator isn't charging. Remember when cars/trucks didn't require a fan to keep a battery cool?
Sorry I am late replying to your post, but listen... I have had two RLs since 2005. Minus a break for about 2 years between Gen 1 & Gen 2, that's 14 years. Zero issues other than a back seat plastic cam failure and a RF headlight that burned out after about 5 years. Seriously, other than oils and a timing belt (that I pushed to 11 years vs 7/9 on Gen 1), I have had nothing go wrong. And even the timing belt is a known wear item.I have twice had "Charging system fault" and "AWD problem" come up at the same time on my 2017 sport.
Man a live I have had enough problems with this truck! I like it but I think this may be the last straw. I got messes around with the dealership On the back up camera that I ended up changing myself. I've had to replace battery At my own expense earlier this year at the dealers diagnosis that turn out to be faulty Injectors. Yes you read that right...
Very disappointed with what will likely be my first and last Honda.