| Circuit Diagram |

Signal Waveform Idle rail pressure regulator waveform
Inspection 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Disconnect the fuel pressure regulator valve connector.
Inspection 1. Ignition "ON". 2. Turn on the head lamp switch. 3. Check that the aim of the head lamp changes smoothly when the head lamp leveling device switch is turned on. 4. If it does not operate well, check the connector and terminals to make sure that they are connected.
Component Location Index Engine Room [Lambda Engine] 1. Expansion Valve2. Suction & Liquid Tube Assembly3. Service Port (Low Pressure)4. Service Port (High Pressure)5. A/C Pressure Transducer (APT)6. Compressor7. Condenser8. Receiver-drier [Tau Engine] 1.