C311, C318 and TCM 58P connectors are in the engine compartment near the transmission:

Inline connector C310 is not very far away from them:

 

This is totally awesome!

Thank you very much.

 

Glad you got a relatively quick resolution, and accurate root cause with a simple fix!

 

Looks like you have a really good dealer - Which one did you take it to? Curious because I am in N. Atl and have taken mine to GP Honda with mixed results so looking for alternatives. Thx.

 

I'm going to give you a very long answer with a lot of context.

When I bought my Ridgeline my primary vehicle was broken and I needed a brand new vehicle pronto!

Because we are in the South I did not want a vehicle with a black interior.

I wanted either a gray or beige interior.

That meant I was limited in the vehicles I could consider.

The bottom line is I bought my vehicle from Gwinnett place Honda but was never in love with them...... They simply had the first available vehicle that had a gray or beige interior.

I actually had to wait for it to be built and shipped because there were no units on the ground that met my requirements.... Or if they did, the dealers wouldn't budge off of their $3,000 to $4,000 accessory packages which I had no interest in.

Once I took possession of my truck I made Honda Mall of Georgia my exclusive location for service.

They are very close to my house and that makes it pretty convenient.

I have dealt with them for warranty issues and also a flat tire repair.

I want to emphasize that every time I've dealt with them that every service advisor has been very professional.

They know that I have prior OEM experience and have a very technical background.

Sometimes the shop foreman has had to become involved in my situations not because I'm special, but because they wanted to make sure things were repaired properly.

I wholeheartedly endorse Honda Mall of Georgia for service.

I get no benefit by mentioning them but I will say that I've had very good experiences with them for the last 23 months.

 

All seems well.

Multiple cold starts and hot restarts.

Have driven it gently and driven it hard.

County roads and the interstate.

No glitches.

Looks like the diag and repair was successful.

Going from GA to FL tomorrow in the truck after all.

 

All is well that ends well.

Enjoy your trip!

 

Great to hear that you're back on the road, @ATL RL!

Did you happen to locate the offending connector on your Ridgeline? According to the drawings @BeshmoHandes posted, connector C318 appears to be right behind the starter motor. I'll have to look back there at some point to see if I can find it.

 

Great to hear that you're back on the road, @ATL RL!

Did you happen to locate the offending connector on your Ridgeline? According to the drawings @BeshmoHandes posted, connector C318 appears to be right behind the starter motor. I'll have to look back there at some point to see if I can find it.

This has been a busy week and I have not had time to poke around while the engine is cool.

It will be over a week before I can do it.

My goal is to find it and take a picture.