| Circuit Diagram |

Signal Waveform
Inspection1.Turn the ignition switch OFF and disconnect the battery negative (-) cable.2.Disconnect the fuel pressure regulator valve connector.3.Measure resistance between the fuel pressure regulator valve terminals 1 and 2.
Inspection1.Turn the ignition switch OFF.2.Disconnect the evaporator temperature sensor connector.3.Measure the resistance between terminal "+" and "-" of the evaporator temperature sensor.Specification Evaporator core temperature [°C (°F)] Resistance [KΩ]
Replacement1.Remove the battery (-) terminal.2.Remove the engine room under cover.(Refer to Engine Mechanical System - "Engine Room Under Cover")3.Remove the heater hose (A) and AEWP hose (B).4.Disconnect the lock pin to remove the heater hose pump connector (A).