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SEC902C Overall Function Check NHEC1159 Use this procedure to check the overall function of the heated oxy- WITH GST NHEC1159S01 1) Start engine and warm it up to normal operating temperature. 2) Set voltmeter probes between ECM terminal 91 (HO2S1 bank 3) Check one of the following with engine speed held at 2,000 쐌 The maximum voltage is below 0.8V at least one time. 쐌 The minimum voltage is below 0.35V at least one time. 4) If NG, go to “Diagnostic Procedure”, EC-481. Diagnostic Procedure NHEC1160 1 RETIGHTEN GROUND SCREWS 1. Turn ignition switch “OFF”. SEC047D 䊳 GO TO 2. 2 RETIGHTEN HEATED OXYGEN SENSOR 1 Loosen and retighten corresponding heated oxygen sensor 1. Tightening torque: 40 - 60 N·m (4.1 - 6.1 kg-m, 30 - 44 ft-lb) 䊳 GO TO 3. GI MA EM LC FE AT AX SU BR ST RS BT HA SC EL IDX DTC P1144, P1164 HO2S1 Overall Function Check EC-481 |