Grand Cherokee 4WD V8-4.7L VIN N (2000)
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ALWAYS REMOVE RINGS, WATCHES, LOOSE HANGING JEWELRY, AND LOOSE CLOTHING.
Positive Temperature Coefficient
Positive Temperature Coefficient (PTC) devices are being used for circuit protection. These PTC's act like a solid state fuse. They are located in the
junction block, and are used to protect such items as: power door lock motors, power windows, and various engine solenoids.
Positive Temperature Coefficient Symbol
A special symbol is used to identify these in the wiring diagrams.
Symbols
