Diagnostic Procedure

DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAVE BEEN RECORDED Have FREEZE FRAME DATA and DIAGNOSTIC MONITORING TEST RESULTS (CCM related) been recorded?	Yes	Go to the next step.
1		No	Record the freeze frame data and diagnostic monitoring test results on the repair order, then go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Verify related Service Bulletins and/or on-line repair information availability. Is any related repair information available?	Yes	Perform repair or diagnosis according to the available repair information. If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA Is P050A on FREEZE FRAME DATA?	Yes	Go to the next step.
3		No	Go to for DTC on freeze frame data. (See DTC TABLE ).
4	CHECK AIR SUCTION IN INTAKE AIR SYSTEM Start the engine. Check air suction between MAF sensor and intake manifold. Is there any air suction in the intake air system?	Yes	Repair or replace malfunctioning part, then go to Step 7.
4		No	Go to the next step.
5	VERIFY ELECTRONIC THROTTLE CONTROL SYSTEM OPERATION Perform the Electronic Throttle Control System Operation Inspection. (See ELECTRONIC THROTTLE CONTROL SYSTEM INSPECTION ). Does the electronic throttle control system operate properly?	Yes	Go to the next step.
5		No	Repair or replace malfunctioning part according to inspection result. Then go to Step 7.
6	VERIFY THROTTLE VALVE Turn the ignition switch to off. Remove the throttle valve with connector connected. Access ETC_DSD PID using the WDS or equivalent. Turn the ignition switch to ON position (Engine off). Move the throttle valve using the ETC_DSD PID simulation function. Dose the throttle valve move smoothly?	Yes	Go to the next step.
6		No	Clean the throttle valve and retest. If the problem does not resolve, replace the throttle body. Then go to the next step.
7	VERIFY TROUBLESHOOTING OF DTC P050A COMPLETED Make sure to reconnect all disconnected connectors. Clear DTC from the PCM memory using the WDS or equivalent. Perform the KOER self-test using the WDS or equivalent. (See DTC TABLE ). Is the PENDING CODE for this DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION ).
7		No	Go to the next step.
8	VERIFY AFTER REPAIR PROCEDURE Perform the "after repair procedure". (See AFTER REPAIR PROCEDURE ). Are any DTC present?	Yes	Go to the applicable DTC troubleshooting. (See DTC TABLE ).
8		No	Troubleshooting completed.