DEFINITION: Engine continues to run after key is turned OFF, but runs very rough If engine runs smooth, check ignition switch and adjustment.

Was the Powertrain On-Board Diagnostic (OBD) System Check performed?

Go to Step 2

Go to the Powertrain On Board Diagnostic (OBD) System Check

1. Perform a bulletin search.
2. If a bulletin that addresses the symptom is found, correct the condition as instructed in the bulletin.

Was a bulletin found that addresses the symptom?

Go to Step 6

Go to Step 3

Was visual/physical check performed?

Go to Step 4

Go to Visual/Physical Checks

1. Check for a short between B+ and any of the ignition feed circuits. Refer to Fuse Block Details in Electrical Diagnosis.
2. If a problem is found, repair as necessary.

Was a problem found?

Go to Step 6

Go to Step 5

1. Review all diagnostic procedures within this table.
2. If all procedures have been completed and no malfunctions have been found, review/inspect the following:

•	Visual/physical inspection.

•	Scan Tool data.

•	Freeze Frame data/Failure Records Data.

•	All electrical connections within a suspected circuit and/or system.

3. If a problem is found, repair as necessary.

Was a problem found?

Go to Step 6

Refer to Technical Service Bulletins

Operate the vehicle to duplicate conditions present when the original symptom was noted.

Is symptom still present?

Go to Step 3

System OK