| Circuit Diagram |



Singal Waveform
Inspection 1. Connect a diagnostic tool on Data Link Connector (DLC). 2. Check MAPS output voltage at idle and IG ON.
Special Service Tools Tool (Number and name) Illustration Use 09977-3R000 Disc & hub assembly bolt remover Removal and installation of disc & hub assembly.
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.