LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 1992 >> Explorer 4D Utility, RWD, Automatic >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Anti-Lock >> Diagnosis >> Trouble Codes >> Code 4 (Closed Valve Switch Or Open Dump Valve) Bronco, "E" & "F" Series

Code 4 (Closed Valve Switch Or Open Dump Valve) Bronco, "E" & "F" Series

  1. When this occurs, Red BRAKE warning light will be on. Unplug electro-hydraulic valve connector. Measure resistance between valve switch pin (on valve side) and valve body. See Figure . If resistance is less than 10,000 ohms, replace electro-hydraulic valve.
  2. If resistance is 10,000 ohms or more, measure resistance between valve switch pin and ground pin on valve side. See Figure . If resistance is 10,000 ohms or less, replace electro-hydraulic valve. If resistance is more than 10,000 ohms, disconnect battery.
  3. Unplug control module connector. Measure resistance between module connector pin No. 6 (on harness side) and ground. See Figure . If resistance is 100,000 ohms or more, replace control module. If resistance is less than 100,000 ohms, repair short between valve and control module.
scientia non olet · About LEMON Manuals