Test Description

The numbers below refer to the step numbers in the diagnostic procedure.

1. 5
   
   This step will determine if any mechanical faults have caused this DTC to set.
2. 7
   
   This voltage drop test will determine if high resistance has caused this DTC to set.
3. 9
   
   This step verifies the signal circuit from the MAF sensor electrical connector to the PCM.
4. 10
   
   This step tests the signal circuit of the MAF sensor for a short to another 5-volt reference circuit.
5. 11
   
   This step will determine if the PCM is able to process the frequency signal that it receives from the MAF sensor.
6. 14
   
   This step will determine which portion of the circuit or which component is shorted to ground.
7. 17
   
   This step verifies that the signal circuit is not shorted to any other PCM circuit.