Abs light, codes. Bad hcu??
 

So yesterday I got abs & brake lights, Regen disabled and check brake system messages on the dash.
i drove it 5mi home, it was slower to stop than normal but stopped when I needed it to.

Getting codes c1478/1480

Think it's the hcu?
If so cheaper alternative to Ford?


Tone rings seem in tact, don't see any leaks, mastercylinder is full.

Re: Abs light, codes. Bad hcu??
 

$700 brake lines =(

Re: Abs light, codes. Bad hcu??
 

Have you had any brake work done? I only started having HCU noise after I had my brake pads replaced. It's only been about a month, but after having the brake fluid flushed (a recommendation on a thread here), things have been fine.

Re: Abs light, codes. Bad hcu??
 

I changed the rear pads many months ago.



Going to try the procedure on here for grounds (if I can find them) and the bleeding.

Re: Abs light, codes. Bad hcu??
 

https://www.greenhybrid.com/forums/f...tml#post265925
Have you reviewed this post?

Re: Abs light, codes. Bad hcu??
 

I've read so much in the last couple of days not sure.
I'm going to try the grounds first.

I was able to drive home from dealer with no issues or lights. Haven't tried driving it since.
Maybe the reset the abs module?

I'll need to read more on how to use forscan to clear it too.

Re: Abs light, codes. Bad hcu??
 

Any luck? I am trying to figure out what I should so still. How were you able to reach all the grounds?? How did you clean them?

Re: Abs light, codes. Bad hcu??
 

IDK yet; just found 4 grounds, removed; sandpapered, sprayed contact cleaner on. cleaned batt terminals (didn't look bad at all).

The grounds I found: under the 12v batt easy to pull bat & reach it between tray & air filter) one on the firewall in front of steering wheel; 2 by washerfluid, 1 on top easy peasy, 1 at bottom of filler neck, not so easy peasy =(

haven't tried test run yet. started up, presed brake pedal, put in R & D, back into park. no lights yet (but I was also able to drive 10ish miles home from dealer w/no lights either.

next step is the confusing line flushing procedure. not sure I'm up for that; or quite understand the exact procedure yet.

Re: Abs light, codes. Bad hcu??
 

Read this thread https://www.greenhybrid.com/forums/f...es-help-31530/ ,especially the last page.

Diagrams show the grounds that have been identified by Ford in a Technical Bulletin as known culprits. These are the ground leads for the HCU itself. Your best friend is someone with a lift as they pretty much have to be done from underneath, less removing the entire HCU itself.

Good Luck!

Re: Abs light, codes. Bad hcu??
 

Any update?