Master Cylinder Sensor

[surfride]

There is a sensor on the master cylinder, below the plastic reservoir. Mine is broken, no codes, what is it, what does it do? Anyone happen to know a cross reference part number where I can pick one up?

2005 W20

Thanks!

~David

[Oemtech]

Mills Supply

36-984 Warning Switch $11 (The one in the MC casting)

36-987 Low Fluid Switch $33.77 (The one in the MC reservoir)

[scoutmstr]

Almost same coach same reservoir low fluid electrical switch. OEM mounted windshield motor too close. 5/20/05 bought part from Chevy at $40 GM part number is 15620028

[surfride]

Originally Posted by oemtech

Mills Supply

36-984 Warning Switch $11 (The one in the MC casting)

36-987 Low Fluid Switch $33.77 (The one in the MC reservoir)

Thank you!

["007"]

When some had their brake recall done they were removed by service people with this info to extinguish the ABS light on dash.

[surfride]

I ordered a replacement anyway and put some duct tape over the opening to keep it clean for the journey home. I have no indicators or codes at this point.

Thanks for the tip and the referral to Mills

~David