4WD Low Circuit

Measure resistance between Key Power Circuit at the fuse panel (+ probe) and test pin No. 12 (- probe) at the breakout box. If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, check for a faulty indicator bulb (4WD LOW LED or OCIL) or defective fuse in fuse panel. If fuse is okay, repair open circuit, remove breakout box and reconnect ECA. Rerun QUICK TEST.