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SEC902C
Overall Function Check
NFEC0893
Use this procedure to check the overall function of the heated oxy-
gen sensor 1 circuit. During this check, a 1st trip DTC might not be
confirmed.
WITH GST
NFEC0893S01
1) Start engine and warm it up to normal operating temperature.
2) Set voltmeter probes between ECM terminal 91 (HO2S1 bank
1 signal) or 92 (HO2S1 bank 2 signal) and engine ground.
3) Check the following with engine speed held at 2,000 rpm con-
stant under no load.
I The voltage does not remain in the range of 0.2 - 0.4V.
4) If NG, go to “Diagnostic Procedure”, EC-245.
DTC P0134, P0154 HO2S1
Overall Function Check
EC-242
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