Operation CHARM: Car repair manuals for everyone.

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FRONT HEATED OXYGEN SENSOR (Front HO2S) (Left bank) (DTC: P0150)
1) Start engine and warm it up sufficiently.




2) Set voltmeter probes between ECM terminal 51 (sensor signal) and 25 (engine ground).
3) Make sure of the following with engine speed held at 2,000 rpm constant under no load.
^ Malfunction indicator lamp goes on and off periodically more than 5 times for 10 seconds in Diagnostic Test Mode II (FRONT HEATED OXYGEN SENSOR MONITOR).




^ The maximum voltage is over 0.6 volts at least one time.
^ The minimum voltage is below 0.35 volts at least one time.