ABS and DRB Scan Tool

[bighammer]

My ABS and brake lights have been on for a while. Thinking it was the sensor on the rear axle, I priced it at the dealer and found it to be an $87 item. I went home and removed and cleaned the old one (I'm cheap) and hoped that it would solve the problem. No Luck. I disconnected the ABS module and connected it again. Still on. I was hoping there was a code I could read from the light, but that seems to be only for the rear anti-lock trucks. (mine has the 4 wheel ABS) My service manual says a "DRB scan tool" needs to be connected to the connector under the dash. Anything else I could try (other than buying the tool at the dealer or taking the truck in)?



Thanks

 

[Dreher]

DRB scantools are several thousand dollars, so that may not be the best choice. On the other hand, you would be very popular with local TDR members.



I have had the ABS/Brake light come on a couple of times on my 96, and every time it was caused by me knocking loose a vacuum line while working on the truck. Look on the firewall around the brake booster and see if any hoses are disconnected.



Bob

 

[Midnight]

Bighammer,using an ohm meter check to see if you have any resistance at the speed sensor in the diff. I cant remember off my head the readings you should have , but when mine went bad i had no readings(open). This seems to be common,good luck.