Code Enable Criteria

Conditions for running DTC:

• PCM performs this DTC diagnostic continuously.
• Ignition voltage is greater than 6.4 volts.
• Engine speed greater than 300 RPM.
• No in-range faults for APP 2 sensor or APP 3 sensor (PCM checks for high and low voltage faults).

Conditions for setting DTC:

• Difference between APP 1 and APP 2 sensors is greater than 0.23 volt (PCM compares pre-scaled voltage, internal to PCM).
• Difference between APP 1 and APP 3 sensors is greater than 0.50 volts (PCM compares pre-scaled voltage, internal to PCM).
• All diagnostic conditions are met for 2 seconds.