Test Description

The numbers below refer to the step number in the diagnostic procedures.

1. 4
   
   This step will determine if any mechanical faults have caused this DTC to set.
2. 9
   
   Disconnecting the harness connector of the APP sensor will determine if the sensor is affecting the 5-volt reference circuit of the MAF sensor.
3. 10
   
   Disconnecting the harness connector of the A/C sensor will determine if the sensor is affecting the 5-volt reference circuit of the MAF sensor.