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EC-184 < COMPONENT DIAGNOSIS > [QR25DE] P0131 A/F SENSOR 1 With GST Follow the procedure “With CONSULT-III” above. YES >> Go to NO >> GO TO 3. 3. PERFORM DTC CONFIRMATION PROCEDURE With CONSULT-III 1. Turn ignition switch OFF and wait at least 10 seconds. 2. Turn ignition switch ON. 3. Turn ignition switch OFF, wait at least 10 seconds and then turn ignition switch ON (READY). 4. Drive and accelerate vehicle to more than 70 km/h (43 MPH) within 1 minute after turning ignition switch ON (READY). CAUTION: Always drive vehicle at a safe speed. 5. Maintain the following conditions for about 20 consecutive seconds. NOTE: • Keep the accelerator pedal as steady as possible during the cruising. • If this procedure is not completed within 150 seconds after turning ignition switch ON (READY) at step 3, return to step 1. 6. Check 1st trip DTC. With GST Follow the procedure “With CONSULT-III” above. YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000004211427 1. CHECK GROUND CONNECTION 1. Turn ignition switch OFF. 2. Check ground connection E9. Refer to Ground Inspection in . Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace ground connection. 2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT 1. Disconnect A/F sensor 1 harness connector. 2. Turn ignition switch ON. 3. Check the voltage between A/F sensor 1 harness connector and ground. Is the inspection result normal? YES >> GO TO 4. NO >> GO TO 3. ENG SPEED 1,000 - 3,200 rpm VHCL SPEED SE More than 70 km/h (43 mph) B/FUEL SCHDL 1.5 - 15.0 msec COOLAN TEMP/S More than 70 °C (158°F) Selector lever Suitable position A/F sensor 1 Ground Voltage Connector Terminal F44 4 Ground Battery voltage PBIB3308E |