Basic Service Symbols There are five primary symbols used to complement illustrations. These symbols indicated the materials to be applied to parts during service.
General Service Information Protection of the Vehicle Always be sure to cover fenders, seats, and floor areas prior to beginning work.
Description The PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of heater core. The PTC heater is an electric heater using a PTC element as an auxiliary heating device that supplements deficiency of interior heat source in highly effective diesel engine.