Anti-Lock light illuminated

[fast88]

Another issue I have on my 1988 Corvette coupe is an illuminated Anti-Lock light on the forward panel. When I have the fuse pulled and the anti-lock system deactivated brakes work fine with great stopping ability. When I reset the fuse on the fuse panel (pax side on side of dash), I get a metal popping sound which sounds like the left rear caliper. The car still moves but when I back up I get that sound. Also the brake pedal oscillates like the Anti-Lock is cycling or something??? Was wondering if the rear caliper Anti-lock feature was malfunctioning. Did have some black sediment in the master cylinder resevoirs as well. Do I need to bleed the system and replace the LR caliper or is there another solution to this issue? Thanks.

[c4c5specialist]

HI there,
If the light is on, you have a diagnostic trouble code and we need to know what kind of code you have.
Please give us more details as to when this started and under what conditions.
Allthebest, c4c5

[fast88]

Bought the car with the Anti-Lock light on. I do not have the J-35890 diagnostic tool and cannot answer that question. Would imagine the problem has manifested itself due to the age of the car (1988). I understand that when rubber lines age they detiorate and contaminate the brake fluid. Would this cause the calipers to lock up and create a code hense the light???

[c4c5specialist]

HI there,
No, your light has nothing to do with that. It cannot monitor caliper pressure or anything else.
Look in your service manual and ground the 2 terminals to get your ABS to flash and give you the codes.
It would help us, help you
Allthebest, c4c5

[fast88]

What terminals are you referring to? I have heard of at least 6 codes with the 88. Would you mind telling me what they are if what they mean. Only if it is not too involved, otherwise I will jump the terminals, but still need to know which ones. Thanks

[fast88]

Havn't heard back from anyone regarding my question regarding 2 terminals that need grounded. To which terminals and what location are they? Also does anyone know the proper oil pressure readings at idle and in cruise say 55mph? Thanks.