DESCRIPTION
There are many operating conditions that lead to the malfunction of engine components. A good grasp of such conditions can make troubleshooting faster and more accurate.

In general, each customer feels differently about an incident. It is important to fully understand the symptoms or conditions for a customer complaint.
Utilize a diagnostic worksheet like the WORKSHEET SAMPLE below in order to organize all the information for troubleshooting.
Some conditions may cause the MIL to illuminate steady or blink and DTC to be detected. Examples:
Vehicle ran out of fuel, which caused the engine to misfire.
WORKSHEET SAMPLE

Work Flow
Basic InspectionAll Doors Do Not Lock/unlock or Trunk/back Door Do Not Open with Door Request Switch
All doors do not lock/unlock using door request switch.
NOTE:
Before starting diagnosis check that vehicle condition is as shown in “Conditions of vehicle”, and check each symptom.
SYMPTOM TABLE (BOTH INTELLIGENT KEYS HAVE THE SAME SYMPTOMS)
Door lock operation (remote keyless entry) Door lock ...
Diagnosis Procedure
NOTE:
CHECK COOLING SYSTEM
Check engine coolant level and check for leakage. Refer to ENGINE COOLANT : Inspection.
Check reservoir tank cap. Refer to RESERVOIR TANK CAP : Inspection.
Check water flow sounds of the engine coolant. Refer to ENGINE COOLANT : Refilling.
Is the inspection result normal? ...
Diagnosis Procedure
PERFORM ECM SELF-DIAGNOSIS
With CONSULT
Perform self-diagnosis for “ECM”.
Is any DTC detected?
YES >>
Check DTC detected item. Refer to DTC Index.
NO>>
GO TO 2.
PERFORM SELF-DIAGNOSIS
With CONSULT
Perform self-diagnosis for "AWD/4WD".
Is any DTC detected?
YES>>
Check the DTC ...