VSA / PCM error code 126-4 on honda ridgeline

SOURCE: 2007 honda ridgeline vibration in the steering wheel

that is definitely not normal,i have been a Honda technician for may years and have seen this problem several times.most Honda dealer have a funky new tire balance that does match balancing with road force,have them match balance the tires and do road force,this will take the heavy point of the tire and the light point of the rim,they will index these points and break down the tire and turn the tire to match the light point of the rim,this will also show any non visible bad tire,there is a roller that comes down on the tire as its being balanced and puts approx 9000 pounds of pressure on tire,and measures any excessive internall run out that is not visible,anything above 40lbs of road force after this procedure is not normal,and the tire is no good,most bigger Honda dealer within any major city should have this machine and will know what you are talking about,good luck,Honda should cover that under warranty,especially if it has low kms,don't take no for an answer,go to customer relations

SOURCE: dashboard lights flashing. all of them.

I work for honda and have seen this often. Mostly on the newer vehicles (2008 and newer). we have always fixed this by replacing the insterment cluster. expensive yes but always fixed it. it in itself is a seperate computer so when it is replaced it will need to be initalized through the HDS

SOURCE: I have a 2009 Honda pilot. has a tapping noise when in reverse.

VTM 4 is a traction control system designed for better traction and fuel efficiency. I'd get it back to the dealer ASAP. There seems to be a coil malfunction in the rear axle. I'd make them fully check out the rear axle in addition to checking out the coil sensors themselves. Best of luck to you!
Greg

SOURCE: Whle driving my 04 diesel

Hey did you ever figure out what was wrong with your car? Mine is doing the SAME exact thing

SOURCE: i also got code u0122 on honda accord 09 showing

code u0122 fcan malfunction ecu to vsa. dealership has to fix.problem in your ecm and vechicle stability assist.