1987 C4 Master Cylinder Switch
Thread Starter
Heel & Toe
Joined: May 2016
Posts: 23
Likes: 4
1987 C4 Master Cylinder Switch
Hi guys,
'87 C4 - on top of the master cylinder there is a sensor that has been unplugged since I have had the car. The pigtail has melted and warped - plugging it back in won't be possible. What is this sensor? And what does it do?
The ABS has never worked. The ABS light comes on a few seconds after car gets moving. Any relation between the two?
Thanks.
'87 C4 - on top of the master cylinder there is a sensor that has been unplugged since I have had the car. The pigtail has melted and warped - plugging it back in won't be possible. What is this sensor? And what does it do?
The ABS has never worked. The ABS light comes on a few seconds after car gets moving. Any relation between the two?
Thanks.
Team Owner
Joined: Sep 2003
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From: Freedom is never more than one generation away from extinction.
St. Jude '03 thru '24
Race Director
Joined: Apr 2002
Posts: 10,036
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From: Anaheim CA
The switch lights up the BRAKE light on the center cluster DIC. It does that if the brake pressure is different between the front and rear brake circuits. If it's not connected it will not do anything.
