I just bought a 1997 C2500 (yesterday in fact). Today I changed the oil and topped off all the other fluids and when I got back in the truck to pull it out of the garage the ABS malfunction indicator light was lit up on the gauge cluster... WTF? I didn't touch anything with that system. I did open the fuse box cover 4GP. Any ideas? Is there a reset proceedure for that system? The only vehicle I own that has ABS is an Acura Integra and I've never had to work on it.

 

I would pull it back into the garage and jack it up and pull the tires check the brakes and clean the abs sensors (these are magnets and pick up metal shavings and cause false codes) and/or go to autozone and have the computer scanned this may or may not give you any answers.........the last time I checked the abs sensors for some of the 95-98 model trucks were on National Backorder so lets hope its not a sensor