Test Description

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

1. 3
   
   This step tests for Electromagnetic Interference (EMI) on the signal circuit of the MAF sensor. A frequency reading with the MAF sensor disconnected indicates an EMI related fault or a poor connection at the PCM. Disconnecting the MAF sensor may set additional related DTCs.
2. 4
   
   This step will determine if incorrect harness routing has caused this DTC to set.
3. 5
   
   This step will determine if water intrusion has caused this DTC to set.