Rick's Free Auto Repair Advice

Brake light ABS light Ford F-450

Brake light ABS light Ford F-450

If you scan the trouble codes on this vehicle and wind up with code 4, in the rear antilock brake module, start by disconnecting the electrical connector at the hydraulic valve located on the frame rail under the truck. Check the black/white wire on the harness side of the connector to make sure it has good ground. Then check the light blue/red wire between the valve and the rear ABS module for a short to ground. If both circuits check out OK, replace the ABS hydraulic control valve

© 2012 Rick Muscoplat

Posted on by Rick Muscoplat

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