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TROUBLESHOOTING MULTIPORT FUEL INJECTION (MPI) <4A9> 13A-326 FUNCTION • In response to a signal from the engine-ECU <M/T> or engine-CVT-ECU <CVT>, the purge PROBABLE CAUSES • Failed purge control solenoid valve • Open/short/damaged circuit in purge control sole- noid value circuit or loose connector contact • Failed engine-ECU <M/T> or engine-CVT-ECU <CVT> DIAGNOSIS PROCEDURE STEP 1. M.U.T.-III actuator test • Item 08: Purge control solenoid valve OK: Operating sound can be heard and the Q: Is the check result normal? YES : Intermittent malfunction (Refer to GROUP 00 − How to Use Troubleshooting/Inspection Service Points − How to Cope with Intermittent Malfunctions ). NO : Go to Step 2 . STEP 2. Connector check: A-108 purge control Q: Is the check result normal? YES : Go to Step 3 . NO : Repair or replace the connector. STEP 3. Perform resistance measurement at • Disconnect connector, and measure at solenoid valve side. • Resistance between terminal No. 1 and No. 2. OK: 30 − 34 Ω (at 20°C) Q: Is the check result normal? YES : Go to Step 4 . NO : Replace purge control solenoid valve. STEP 4. Perform voltage measurement at A-108 • Disconnect connector, and measure at harness side. • Ignition switch: ON • Voltage between terminal No. 2 and earth. OK: System voltage Q: Is the check result normal? YES : Go to Step 6 . NO : Go to Step 5 . AK402007 1 2 AC Connector: A-108 A-108 (B) A-108 Harness side AK402007 1 2 AC Connector: A-108 A-108 (B) A-108 Harness side AK402007 1 2 AC Connector: A-108 A-108 (B) A-108 Harness side Main Index Group TOC |