Page 829 of 1903

Downloaded from www.Manualslib.com manuals search engine Engine Cranks Normal But Will Not Start
The following conditions apply to this symptom:
•The engine cranks at normal speed.
• The engine will not start.
• The battery is fully charged.
1.PRELIMINARY CHECKS
CAUTION:
Extended cranking because of a No Start can load the exhaust system with raw fuel, damaging the
catalytic converter after the engine starts.
•Carry out the following preliminary checks:
Fuel quality
Electrical connections
Intake air tube integrity
Fuses and relays
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair as necessary.
Verify the symptom no longer exists.
2.CHECK DTC
• Turn the ignition switch on.
• With the scan tool X-431, select view DTC.
Are there any DTCs present?
Ye s>>See the Diagnostic Trouble Code (DTC) List.
Go to the specific diagnostic test to troubleshoot the DTC.
No
>>Go to the next step.
3.TRY TO START THE ENGINE WITH THE THROTTLE CLOSED
• Attempt to start the engine.
Does the engine start now with the throttle closed?
Ye s>>Verify the symptom no longer exists.
No
>>Go to the next step.
4.CHECK EXHAUST SYSTEM
• Inspect the vehicles exhaust system for restriction.
Is there a restriction in the exhaust system?
Ye s>>Repair as necessary.
No
>>Go to the next step.
ELECTRONIC ENGINE CONTROLS - 2.4L ENGINE SYMPTOM DIAGNOSIS
03
03–545Chery Automobile Co., Ltd.
Page 831 of 1903

Downloaded from www.Manualslib.com manuals search engine Engine Will Not Crank
The following conditions apply to this symptom:
•The engine will not crank.
1.PRELIMINARY CHECKS
• Carry out the following preliminary vehicle inspection:
Fuel quality
Battery connections
Starter relay connections
Manual transmission clutch fully depressed
Engine immobilizer activated
Fuses/Fuse links
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair as necessary.
Verify the symptom no longer exists.
•
2.LISTEN FOR STARTER RELAY CLICKING
• Attempt to start the engine.
Is a clicking sound heard from the starter relay when the ignition key is turned to START?
Ye s>>Go to the next step.
No
>>Go to step 5.
3.CHECK STARTING SYSTEM
• Check the starter, starter ground, starter relay cable to starter and battery.
Is a fault indicated?
Ye s>>Repair as necessary.
No
>>Go to the next step.
4.CHECK OPERATION OF OTHER ELECTRICAL ACCESSORIES
• Check all accessories.
Do any other electrical accessories work?
Ye s>>Go to the next step.
No
>>Check the charging system.
ELECTRONIC ENGINE CONTROLS - 2.4L ENGINE SYMPTOM DIAGNOSIS
03
03–547Chery Automobile Co., Ltd.
Page 833 of 1903

Downloaded from www.Manualslib.com manuals search engine Hard Start / Long Crank / Erratic Start / Erratic Crank
The following conditions apply to this symptom:
•The engine cranks for an extended period of time.
• The engine starts hard during a long cranking time.
1.PRELIMINARY CHECKS
• Confirm that the correct starting procedure was used by the customer before proceeding with diagnosis.
• Carry out the following preliminary checks:
Vacuum leaks
Fuel quality (concerns such as correct octane, contamination, winter/summer blend)
Intake air system (tubes)
Air cleaner (restrictions)
Battery condition and starter current draw.
Are all checks OK?
Ye s>>Go to the next step.
No
>>Repair as necessary.
Verify the symptom no longer exists.
2.CHECK ECM DTC
• With scan tool X-431, select view DTC and data stream in ECM.
Are there any DTCs present?
Ye s>>See the Diagnostic Trouble Code (DTC) List.
Go to the specific diagnostic test to troubleshoot the DTC.
No
>>Go to the next step.
3.CHECK SECONDARY IGNITION SYSTEM
• Perform the following to test the secondary ignition system:
Disconnect the injector fuse.
Remove any of the 4 spark plugs.
Connect the spark plug to spark plug wire.
Ground the spark plug on the cylinder block.
Crank the engine to test the secondary ignition system with the spark plugs removed.
Is a strong blue spark visible at each spark plug while cranking the engine?
Ye s>>Go to the next step.
No
>>Check Camshaft Position (CMP) sensor signal at ECM.
If CMP sensor is OK, check the following:
Crankshaft Position (CKP) sensor malfunction
Faulty spark plug wires
Faulty spark plugs
ELECTRONIC ENGINE CONTROLS - 2.4L ENGINE SYMPTOM DIAGNOSIS
03
03–549Chery Automobile Co., Ltd.
Page 838 of 1903