Why is there power in 3 of the 9 wires that connects to the headlight switch,6 has no power

Asked by Feb 21, 2015 at 01:01 AM about the 1988 Ford F-150 XL Standard Cab LB

Question type: Maintenance & Repair

My truck is a '88 f150 and there is no
power in fuse position# 10 brake anti-
lock.

3 Answers

I've already disconnected the headlight switch and used a automotive electrical tester check for power also the fuses, don't understand why only 6 wires has no power and 3 wires have

18,340

A little confused with your problem. Do you have twelve volts present when the fuse is remove and checked with a meter? If not, the problem is within the fuse box or backward toward the battery.

18,340

The switch is a multi function switch. All should not have power all the time. You need a schematic of the switch to determine what does what when.

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