general information - Martin Nez

FI SYSTEM DIAGNOSIS 4-59Step 31) Remove the AP sensor.2) Connect the vacuum pump gauge to the vacuum port of theAP sensor.Arrange 3 new 1.5 V batteries in series 1 (check that totalvoltage is 4.5 – 5.0 V) and connect - terminal to the groundterminal 2 and + terminal to the VCC terminal 3.3) Check the voltage between Vout 4 and ground. Also, checkif voltage reduces when vacuum is applied up to 400 mmHgby using vacuum pump gauge. (Below) 09917-47011: Vacuum pump gauge09900-25008: Multi-circuit tester set Tester knob indication: Voltage ()Is the voltage OK?33VYESNO• R, G/Y or B/Br wire open or shorted to ground,or poor A, P or S connection.• If wire and connection are OK, intermittent troubleor faulty ECM.• Recheck each terminal and wire harness foropen circuit and poor connection.• Replace the ECM with a known good one, andinspect it again.If check result is not satisfactory, replace AP sensorwith a new one.ECM couplers (Harness side)4) After repairing the trouble, clear the DTC using SDS tool.(4-26)Output voltage(VCC voltage 4.5 – 5.0 V, ambient temp. 20 – 30 °C)ALTITUDE(Reference)ATMOSPHERICPRESSUREOUTPUTVOLTAGE(m) (mmHg) kPa (V)0760 1003.1 – 3.6610708 95611707 942.8 – 3.41 524635 861 525634 852.6 – 3.12 438568 772 439567 762.4 – 2.93 048526 70