Test Description

The numbers below refer to the step numbers on the diagnostic procedures.

1. 1
   
   The Diagnostic System Check - Engine Controls prompts the technician to complete some basic checks and store the freeze frame data on the scan tool, if applicable. This creates an electronic copy of the data taken when the fault occurred. The information is then stored in the scan tool for later reference.
2. 2
   
   This step checks for fuel injector control signals from the PCM.
3. 3
   
   This step checks for a fault that affects all the fuel injectors.
4. 5
   
   This step checks for a short in the fuel injector control circuit.
5. 8
   
   This step checks for ignition positive voltage.