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Possible Cause NHEC0438 I Harness or connectors I Heated oxygen sensor 2 (rear) I Fuel pressure I Injectors SEF545Z SEF546Z SEF547Z DTC Confirmation Procedure NHEC0134 NOTE: WITH CONSULT-II NHEC0134S01 1) Start engine and warm it up to normal operating temperature. 2) Turn ignition switch “OFF” and wait at least 10 seconds. 3) Turn ignition switch “ON”. 4) Select “DATA MONITOR” mode with CONSULT-II. 5) Make sure that “COOLAN TEMP/S” indicates more than 70°C 6) Select “HO2S2 (B1) P0137” or “HO2S2 (B2) P0157” of 7) Start engine and follow the instruction of CONSULT-II. 8) Make sure that “OK” is displayed after touching “SELF-DIAG a) Stop engine and cool down until “COOLAN TEMP/S” indicates b) Turn ignition switch “ON”. c) Select “DATA MONITOR” mode with CONSULT-II. d) Start engine. e) Return to step 6 again when the “COOLAN TEMP/S” reaches SEF312XB Overall Function Check NHEC0135 Use this procedure to check the overall function of the heated oxy- WITH GST NHEC0135S01 1) Start engine and drive vehicle at a speed of more than 70 km/h 2) Stop vehicle with engine running. 3) Set voltmeter probes between ECM terminal 72 [HO2S2 (B1) GI MA EM LC FE AT AX SU BR ST RS BT HA SC EL IDX DTC P0137 (BANK 1), P0157 (BANK 2) HO2S2 (REAR) (MIN. VOLTAGE MONITORING) Possible Cause EC-247 |