LarryJa

I have been getting a "high press. valve 1 switch fault" intermittently.
This knocks out the abs, parking brake & esp. It also faults the engine control module.
I've been clearing the fault codes each time, & keeping track of the frequency.
The 1st thing that I am going to try is to disconnect the cable from the control module & spray clean that connection.
If that doesn't solve it, I'll be looking for a good used control module & abs pump. That's another one that I'll have my indy do for me. I'm not up to all that fluid bleeding, if it comes to that.
If i buy a module & pump, I know that I have to find one of the same model, year, engine, drive & major options for compatibility.
Any other guidance?

FormulaElement

You need to send the module into a company to repair it, or buy a new one and have it programmed to your car.

I used CheapABS and was satisfied with them.

tazerproof

+1 for CheapABS. Matt was very knowledgeable and responsive over email and the module has been installed for 2 days with no issues.

Used this video to remove the module:
Easy, just tedious.

assortedpixels

You can remove the control module without affecting the fluid circuit in order to send it in for a rebuild.

LarryJa

Looking at the pump & module location on the C6, i didn't think it could be removed w/o taking the pump out of the car first.

tazerproof

It's a bit fiddly, but actually a little easier than the video makes it out to be.

LarryJa

Cool! I'll give it a go!

tazerproof

One thing...I think in the video he says that the bolts holding the module to the pump are E3 but on my car they were E6. I would just make sure you have a full set of external torx sockets.

Also a magnetic pick up tool comes in handy. I used mine at least half a dozen times. So many places to drop bolts.

LarryJa

I'll be doing this the 1st week in October.
I originally scheduled that time to change my driver's side upper timing chain tensioner. However, my vcds readings for that have stabilized at 5.7-7.9. So, I'll correct the abs &, just, continue to monitor my engine module measuring block 93 readings. I haven't had any startup chain rattles, at all. So, that's encouaging.
What is the mail to return time that you experienced on your mail in repair?

tazerproof

There are 4 bolts on the module, one of which is right on top. Easy to see that is was a torx, from there just trial and error to get the right fit.