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1A-111 Engine General Information and Diagnosis: For Petrol Engine Model DTC Confirmation Procedure 1) With ignition switch turned OFF, connect scan tool. DTC Troubleshooting NOTE
Step Action Yes No 1 Was “Engine and Emission Control System Check” Go to Step 2. Go to “Engine and 2 Is there DTC(s) other than A/F sensor? Go to applicable DTC Go to Step 3. 3 A/F sensor signal check OFF. 2) Warm up engine to normal operating temperature and keep it at 2000 r/min. for 60 sec. 3) Repeat racing engine (Repeat depressing accelerator pedal 5 to 6 times continuously to enrich A/F mixture and Does A/F sensor output current between –0.2 mA and 0.2 Intermittent trouble. Go to Step 4. 4 A/F sensor circuit check ignition switch turned OFF. 2) Check for proper connection of each A/F sensor circuit terminal to A/F sensor connector and to ECM connector. 3) If connections are OK, check A/F sensor circuit for the following. between A/F sensor connector and ECM connector is Ω • Resistance between sensing circuit wires of A/F sensor connector are infinity • Resistance between each sensing circuit wire of A/F sensor connector and vehicle body ground is infinity • Voltage of between each sensing circuit wire of A/F sensor connector and vehicle body ground is 0 V with Is it in good condition? Replace A/F sensor. Repair or replace |