B4000 SE Regular Cab 4WD V6-4.0L OHV (1999)
Cigarette Lighter: Diagnostic Aids
Finding Short Circuits
Shorts occur between the power (positive) and ground (negative) sides of a circuit. Therefore, finding a short circuit requires determining how the circuit
is routed.
Circuits not connected to control unit
Circuits connected to control unit
General Electrical Precautions
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Note the following items when servicing the electrical system.
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Do not alter the wiring or electrical equipment in any way; this may damage the vehicle or cause a fire from short-circuiting or overloading circuit.