| 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.
Replacement 1. Discharge refrigerant from refrigeration system. 2. Replace any faulty tubes or hoses. Cap the open fittings immediately to keep moisture or dirt out of the system. 3. Tighten the bolt or nut joint to the specified torque.
Inspection 1. Press the MODE switch more than 4 times within 2 seconds while pressing the OFF switch. DisplayFail description00Normal51Cluster ion generator fault * For diagnostic procedure, refer to DTC guide. Replacement 1. Disconnect the negative (-) battery terminal.