There's another thread on this very issue around a couple of years ago. Believe coolant gets into the pump electrical circuit ruining/shorting the connections requiring the pump replacement.
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Intercooler aux pump not shutting off
Weird issue but for some reason the I/c pump will not shut off even when the car is shut off. I've let it run all night until the battery was dead, I've cleared the codes, I've unhooked the battery to reset and nothing works. When I drive it I pull the fuse to shut it off. Pump works great. Throwing codes P023b charge air cooler pump "a" control circuit low
U02A9 lost communication with charge air cooler coolant pump "A"
2015 Challenger Hellcat less than 3500 miles completely stock.
U02A9 lost communication with charge air cooler coolant pump "A"
2015 Challenger Hellcat less than 3500 miles completely stock.
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I've looked around. Will likely just replace the pump.There's another thread on this very issue around a couple of years ago. Believe coolant gets into the pump electrical circuit ruining/shorting the connections requiring the pump replacement.
Since this is the 2nd 2015 HC with this issue that we've seen here, talk to your service mgr and ask him/her to chat with their District Svc Manager about covering under warranty. You can also contact the SRT Hotline and start a Case.I've looked around. Will likely just replace the pump.
You can also ask your Dealer Finance Person if they would cover if you purchased an Extended Warranty.
I had this happen on a 2015 Challenger Hellcat. The wife went through an automatic car wash and it shorted out the intercooler pump. The pump still worked but would not shut off unless I pulled the fuse.
Mine is doing this as well. What was the outcome ?
When this happened to my challenger it was because the intercooler pump shorted out. I took the air box out and underneath there is a hard to get to connector that had corroded.Mine is doing this as well. What was the outcome ?
I tried to get this connection loose and just couldn’t get both hands on it. Guess I’ll pop the fender liner out tomorrowWhen this happened to my challenger it was because the intercooler pump shorted out. I took the air box out and underneath there is a hard to get to connector that had corroded.
As a preventative, could an owner of a 2015 fill that connection with silicone grease before putting it back? (before it became a problem.)I tried to get this connection loose and just couldn’t get both hands on it. Guess I’ll pop the fender liner out tomorrow
Could it be a 2015-only problem?I had this happen on a 2015 Challenger Hellcat. The wife went through an automatic car wash and it shorted out the intercooler pump. The pump still worked but would not shut off unless I pulled the fuse.
It should be a Dielectric Grease which is designed to do exactly what you want:As a preventative, could an owner of a 2015 fill that connection with silicone grease before putting it back? (before it became a problem.)
dielectric grease - Search (bing.com)
Best!
Silicone is such diverse stuff.
So I finally got to the connection and both ends of the harness are corroded. for those that had this problem did you replace the wiring harness going to the PCM as well? Looks like corrosion all around the pump as well. Scared if I don’t replace that part of the wiring harness then I’ll have problems with it in the future
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@srtadam great pics, thanks. I’ll inspect mine when I put the car up in the fall. I would try cleaning the contacts with a wire brush first if possible and snotting it all up with dielectric grease before replacing any harness. Is the harness right there after removing the airbox or do you have to fish around for it? I’ve read its a pita to disconnect.
It’s right under the air box but I couldn’t get it disconnected that way. I had to pull the fender guards out@srtadam great pics, thanks. I’ll inspect mine when I put the car up in the fall. I would try cleaning the contacts with a wire brush first if possible and snotting it all up with dielectric grease before replacing any harness. Is the harness right there after removing the airbox or do you have to fish around for it? I’ve read its a pita to disconnect.
I did not replace my wiring harness. I did scrub the connector out,cleaned it, and packed it with grease. I had to replace my pump too because it was shorted out. Getting the air out of the intercooler system was the worst part. Nothing worked so I ended up having to get the fluid pulled through the system using vacuum.
My pump got shorted out too. Bought the part through an online Mopar vendor then had the dealer install the part.
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