Intention of troubleshooting procedure

WARNING: This page is about a different variant/trim than selected.

Step 1-2
- Perform an ignition system parts inspection.
Step 3-4
- Perform an engine oil related inspection.
Step 7
- Perform a fuel injector control system inspection.
Step 7-14
- Perform an inspection of parts which may be affected by misfire except for ignition-related parts and fuel injection control-related parts.
Step 15-16
- Verify that primary malfunction is resolved and there are no other malfunctions.

TROUBLESHOOTING DIAGNOSTIC PROCEDURE

STEP	INSPECTION	RESULTS	ACTION
1	PURPOSE: DETERMINE INTEGRITY OF SPARK PLUG Inspect the spark plug. (See SPARK PLUG INSPECTION [VIN M] ). Is there any malfunction?	Yes	Replace the spark plug, then go to Step 15. (See SPARK PLUG REMOVAL/INSTALLATION [VIN M] ).
1		No	Go to the next step.
2	PURPOSE: DETERMINE INTEGRITY OF IGNITION COIL Inspect the ignition coil. (See IGNITION COIL INSPECTION [VIN M] ). Is there any malfunction?	Yes	Replace the ignition coil/ion sensor, then go to Step 15. (See IGNITION COIL/ION SENSOR REMOVAL/INSTALLATION [VIN M] ).
2		No	Go to the next step.
3	PURPOSE: DETERMINE INTEGRITY OF OCV FOR No. 1 CYLINDER DEACTIVATION Inspect the OCV for No. 1 cylinder deactivation. (See OIL CONTROL VALVE (OCV) FOR CYLINDER DEACTIVATION INSPECTION [VIN M] ). Is there any malfunction?	Yes	Replace the OCV for No. 1 cylinder deactivation, then go to Step 15. (See OIL CONTROL VALVE (OCV) FOR CYLINDER DEACTIVATION REMOVAL/INSTALLATION [VIN M] ).
3		No	Go to the next step.
4	PURPOSE: DETERMINE INTEGRITY OF OCV FOR No. 4 CYLINDER DEACTIVATION Inspect the OCV for No. 4 cylinder deactivation. (See OIL CONTROL VALVE (OCV) FOR CYLINDER DEACTIVATION INSPECTION [VIN M] ). Is there any malfunction?	Yes	Replace the OCV for No. 4 cylinder deactivation, then go to Step 15. (See OIL CONTROL VALVE (OCV) FOR CYLINDER DEACTIVATION REMOVAL/INSTALLATION [VIN M] ).
4		No	Go to the next step.
5	PURPOSE: DETERMINE INTEGRITY OF SWITCHABLE HLA Inspect the Switchable HLA. (See HYDRAULIC LASH ADJUSTER (HLA) INSPECTION [VIN M] ). Is there any malfunction?	Yes	Replace the Switchable HLA, then go to Step 15. (See HYDRAULIC LASH ADJUSTER (HLA) REMOVAL/INSTALLATION [VIN M] ).
5		No	Go to the next step.
6	PURPOSE: DETERMINE INTEGRITY OF ENGINE OIL SOLENOID VALVE Inspect the engine oil solenoid valve. (See ENGINE OIL SOLENOID VALVE INSPECTION [VIN M] ). Is there any malfunction?	Yes	Replace the engine oil solenoid valve, then go to Step 15. (See ENGINE OIL SOLENOID VALVE REMOVAL/INSTALLATION [VIN M] ).
6		No	Go to the next step.
7	PURPOSE: DETERMINE INTEGRITY OF FUEL INJECTOR Inspect the fuel injector. (See FUEL INJECTOR INSPECTION [VIN M] ). Is there any malfunction?	Yes	Replace the fuel injector, then go to Step 15. (See FUEL INJECTOR REMOVAL/INSTALLATION [VIN M] ).
7		No	Go to the next step.
8	PURPOSE: VERIFY IF MALFUNCTION RELATED TO INTAKE-AIR SYSTEM IS CAUSE OF VALVE BEING STUCK CLOSED Visually inspect for loose, cracked or damaged hoses on intake air system. Is there any malfunction?	Yes	Repair or replace the malfunctioning part according to the inspection results, then go to Step 15.
8		No	Go to the next step.
9	PURPOSE: VERIFY IF POOR DRIVE BELT ASSEMBLY IS CAUSE OF VALVE BEING STUCK CLOSED Verify the condition of the drive belt assembly. (See DRIVE BELT INSPECTION [VIN M] ). Is there any malfunction?	Yes	Assemble drive belt correctly, then go to Step 15. (See DRIVE BELT REMOVAL/INSTALLATION [VIN M] ).
9		No	Go to the next step.
10	PURPOSE: VERIFY IF FOREIGN MATTER ON DRIVE BELT IS CAUSE OF VALVE BEING STUCK CLOSED Verify if oil is on the drive belt. Is there foreign matter on the drive belt?	Yes	Remove the foreign matter on the drive belt, then go to Step 15.
10		No	Go to the next step.
11	PURPOSE: DETERMINE INTEGRITY OF DRIVE BELT AUTO TENSIONER Inspect the drive belt auto tensioner. (See DRIVE BELT AUTO TENSIONER INSPECTION [VIN M] ). Is there any malfunction?	Yes	Replace the drive belt auto tensioner, then go to Step 15. (See DRIVE BELT AUTO TENSIONER REMOVAL/INSTALLATION [VIN M] ).
11		No	Go to the next step.
12	PURPOSE: VERIFY IF MALFUNCTION RELATED TO ENGINE COMPRESSION IS CAUSE OF VALVE BEING STUCK CLOSED Inspect the engine compression. (See COMPRESSION INSPECTION [VIN M] ). Are compression pressures within specification?	Yes	Go to the next step.
12		No	Replace or overhaul the engine, then go to Step 15.
13	PURPOSE: VERIFY IF MALFUNCTION RELATED TO SEALING OF ENGINE UNIT (COMBUSTION CHAMBER AND ENGINE COOLANT PASSAGE) IS CAUSE OF MISFIRE Perform the "ENGINE COOLANT LEAKAGE INSPECTION". (See ENGINE COOLANT LEAKAGE INSPECTION [VIN M] ). Does the radiator cap tester needle drop even though there is no engine coolant leakage from the radiator or the hoses?	Yes	Engine coolant leakage from the engine (between the combustion chamber and the engine coolant passage) may have occurred. Verify the conditions of the gasket and the cylinder head. If there is any malfunction: Repair or replace the malfunctioning part according to the inspection results, then go to the next step.
13		No	Go to the next step.
14	PURPOSE: INSPECT FOR MALFUNCTION DUE TO INTERNAL ENGINE WEAR, DAMAGE Inspect for the following engine internal parts: Cylinder Piston ring Intake valve Exhaust valve Such as cylinder head gasket Are all items normal?	Yes	Engine internal parts are normal. Go to the next step.
14		No	Repair or replace the malfunctioning part according to the inspection results, then go to the next step.
15	PURPOSE: VERIFICATION OF VEHICLE REPAIR COMPLETION Always reconnect all disconnected connectors. Clear the DTC from the PCM memory using the M-MDS. (See CLEARING DTC ). Start the engine and warm it up completely. CAUTION: While performing this step, always operate the vehicle in a safe and lawful manner. When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD capturing function and inspect later. Drive the vehicle under the snapshot data condition. Perform the Pending Trouble Code Access Procedure. (See ON-BOARD DIAGNOSTIC TEST ). Is the PENDING CODE for this DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [VIN M] ). Go to the next step.
15		No	Go to the next step.
16	VERIFY AFTER REPAIR PROCEDURE Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE ). Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE ).
16		No	DTC troubleshooting completed.