Typical Malfunction Thresholds

P0031:

A/F sensor heater current

Less than 0.8 A

P0032:

A/F sensor heater current

More than 10 A

COMPONENT OPERATING RANGE

A/F sensor heater current

WIRING DIAGRAM

Refer to DTC P2195 (See page ES-316).

HINT:

Read freeze frame data using a intelligent tester. Freeze frame data record the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data, from the time the malfunction occurred.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

Don't pay hundreds of dollars to find out what is wrong with your car. This book is dedicated to helping the do it yourself home and independent technician understand and use OBD-II technology to diagnose and repair their own vehicles.

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