formeracurafan

I have a 2014 RDX at 73K. Of course it's out of warranty. Drive it every day 20-60plus miles and it rarely sits idle for more than 24 hours. Dealer is telling me I need the modulator replaced at $1900!?! Here's what happened.

Sunday morning: Started car up and before I could put it in reverse, it died. Dashboard lit up with several warning signals. Horn, radio, windows, lights all worked. Jump started the battery...nothing. Called a neighborhood mechanic over and he charged the battery. It started up fine. Turned it off and dead again. Mechanic put a new battery in. Started up fine, took it for a test drive..all is good. Turned off the car and started it up two times. Third time went completely dead again. Mechanic did diagnostics and saw the following messages:
"86-12 F-CAN Communication With PCM(Engine) Malfunction"
and "86-13 F-CAN Communication With PCM(A/T) Malfunction". Mechanic did a master reset. Removed all warnings but still no start. He was able to jump it and we drove it to the dealership.

Monday: Dealership spend 2 hours on it. Tells me we must have jump started it incorrectly.What??! Still no resolution. Spends another hour on it and tells me it needs a master reset. (I already told him everything the other mechanic did). Calls me back and says Reset done and it's running great! I asked if he tried to restart it again a few times and he said he didn't have to...took it for a drive, turned it off and it started right up again. I told him we had the same exact thing happen but it didn't start for us. I didn't press him to try again in an hour (my mistake). In $200 for mechanic and $350 for dealership. Went to pick it up four hours later and quess what...same exact thing all over again. Today they tell me it needs a new Modulator. Is this a known issue with 2014 RDX? I honestly feel like they are guessing. I don't have the tech package and nothing aftermarket on the car. I drive to and from client homes every day all day. Can not afford to have an unreliable car...especially after paying a premium for an Acura!

kipsy

sucks. im a big believer in extended warranties. most people say don't buy them and advise to put the money in a savings account. if you see the electronics in a 2017 civic ex, its crazy. I have the base AWD rdx, and the tranny/transfer/differntial/torque scares me on these rdx's.

I borrowed a reset tool from a friends shop and reset a vsa light on my tsx that popped up after taking negative cable off. most seach articles said dealer visit 1-2 hours time.

maybe change your key batteries ? leave negative cable for 30 mins to reset ?

formeracurafan

CrimsonElan

Maybe it's the spark plugs (especially cylinder #4 #5) get loose over time?

formeracurafan

markAZ

That's weird. You'd think that something draining the battery that fast would be easy to find...just look for the smoke.

Keep us posted on the outcome.

formeracurafan

After a reset on the VSA module didn't work, dealership ordered a new module but problems persisted. Two days later said they tried a new PCM tester and it wasn't the computer. Today they say it WAS the VSA module but they discovered that the root cause was "multiple fuses were swapped". First, no one on my end has swapped any fuses. Second, does that even make any sense? The problems happened on a Saturday after a week of driving normally during the work week which included highway and city miles and multiple starts a day. Wouldn't there have been issues during the week if fuses had been swapped? Even if someone had broken into my car and swapped my fuses :0 wouldn't they have blown before they caused a major module to fail? No Fuses were blown when we brought it in to the dealership. They required me to pay almost $1800 in full to release my vehicle to me.

RDX10

BLEXV6

I hope you have a resolution soon to this disaster.