Diagnostic Aids

The following conditions can also set the DTC:

• Inspect the ignition coils for aftermarket devices. An aftermarket device connected to the ignition coil circuits, may cause this DTC to set.
• The MIL flashes when there is a catalyst damaging engine misfire.
• If the condition is intermittent, moving the related harnesses and connectors, with the engine operating, while monitoring the appropriate scan tool Misfire Current Cylinder parameter may help to isolate the condition.