Typical Enabling Conditions

Monitor runs whenever following DTCs not present

None

Ignition switch

ON

TYPICAL MALFUNCTION THRESHOLDS

P2120:

VPA voltage

0.4 V or less or 4.8 V or more

P2122:

VPA voltage

0.4 V or less (when accelerator pedal fully released)

P2123:

VPA voltage

4.8 V or more

P2125:

VPA2 voltage

1.2 V or less or 4.8 V or more

P2127:

VPA2 voltage

1.2 V or less (when accelerator pedal fully released)

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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