Brake question

[jagblazer01]

Well, like @exp500 said, could be something as simple as flushing the power steering fluid. You said "no booster" but you either have vacuum boost or hydro-boost and I am assuming hydro-boost. Have you checked the brake fluid level in the master cylinder? Flush brake fluid too.

Could you explain the power steering fluid part to me? I'm confused as to why it might be that since it says service brake booster

 

[Doubeleive]

Could you explain the power steering fluid part to me? I'm confused as to why it might be that since it says service brake booster

If you have a brake fluid level sensor (some of these trucks do not) then try unplugging it and see if the message goes away.

 

[SnowDrifter]

After poking around
It's my understanding that this isn't even a code. It's a DIC message.

And it's explicitly thrown by a circuit fault in the supplemental vacuum pump.

It won't be thrown by low brake fluid. Or a hydraulic pressure switch.

Because there's no code, there's nothing to read from a scanner. Cause it's not thrown from the bcm/ecm/tcm/and/any other modules.

Should see if you have the wiring in place for the pump. I'm thinking 2 things right now.

1. Rig was converted to hydraulic brakes.
2. Rig never had vacuum brakes, but the cluster was replaced or reprogrammed at some point from a vehicle that had vacuum brakes

 

[Fless]

You'll have to figure out what system you have. Hydro-boost brake boosters use the pressure of the power steering pump to power the brake booster.

Hydro-Boost: The Non-Vacuum Booster | Know Your Parts

A Non-Vacuum Booster uses the pressure of the power steering pump to fully power the brake booster system. Learn more.

www.knowyourparts.com

 

[jagblazer01]

After poking around
It's my understanding that this isn't even a code. It's a DIC message.

And it's explicitly thrown by a circuit fault in the supplemental vacuum pump.

It won't be thrown by low brake fluid. Or a hydraulic pressure switch.

Because there's no code, there's nothing to read from a scanner. Cause it's not thrown from the bcm/ecm/tcm/and/any other modules.

Should see if you have the wiring in place for the pump. I'm thinking 2 things right now.

1. Rig was converted to hydraulic brakes.
2. Rig never had vacuum brakes, but the cluster was replaced or reprogrammed at some point from a vehicle that had vacuum brakes

Ok so the cluster is from an escalade. Not sure on year but the the guy I bought it from said he swapped that in

 

[SnowDrifter]

Ok so the cluster is from an escalade. Not sure on year but the the guy I bought it from said he swapped that in

Time to find someone who programs clusters!

 

[jagblazer01]

Time to find someone who programs clusters!

Well that sounds fun lmao. I checked with the guy i bough it from, it's from an 03-06 escalade

 

[OR VietVet]

You can get the right one, custom made by Digital Dash Solutions.

 

[Doubeleive]

so....did you see if it has a brake fluid level sensor?

 

[jagblazer01]

so....did you see if it has a brake fluid level sensor?

Haven't been outside today. Taking care of a newborn lol. I'm gonna check it out tomorrow though