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MPI <4G9> – Troubleshooting 13C-38 Code No. P0443 Purge control solenoid valve system Probable cause Range of Check D Ignition switch: ON D Battery voltage is 10 V or more. Set Conditions D The solenoid coil surge voltage (battery voltage + 2 V) is not detected D Malfunction of the purge control solenoid valve D Open or short circuit in the purge control solenoid D Malfunction of engine-ECU NG Replace the engine-ECU. OK Check the trouble symptoms. OK NG Repair Check the harness wires between OK Check the following connector: NG Repair OK Replace the engine-ECU. Repair OK NG Check the harness wire between NG Check the following connector: NG Repair OK Measure at engine-ECU connector D Measure the voltage at the D Ignition switch: ON D The voltage between terminal 9 NG Check the harness wire between NG Check the following connector: NG Repair OK Measure at the purge control D Disconnect the connector and D Ignition switch: ON D The voltage between terminal 2 OK Check the following connector: NG Repair NG Measure at the purge control D Disconnect the connector, and D The resistance between Ω (at 20 _ C) NG Replace MUT- II Actuator Test 08 Purge control solenoid valve OK: Operating sound can be heard and the valve vibrates. OK Intermittent malfunction |