Pg

All of the following conditions are met:

-

Battery voltage

10.5 V or more

Fuel cut

OFF

Time after fuel cut ON to OFF

30 seconds or more

Accumulated heater ON time

100 seconds or more

TYPICAL MALFUNCTION THRESHOLDS

P0037:

Heater current

Less than 0.3 A

PGG38:

One of the following conditions A or B is met

-

A. Learned heater OFF current

More than 2 A

B. Heater current

More than 2 A

PG141:

Accumulated heater resistance

Varies with sensor element temperature (Example: More than 23 Q)

COMPONENT OPERATING RANGE

Heated Oxygen (HO2) sensor heater current

0.4 to 1 A (when engine idles, HO2 sensor warmed up and battery voltage 11 to 14 V)

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