Q1 Engine turns over normally Q7 cranking problem? NO Not at all or slowly Q2 The headlights Come on and stay on while turning the key Q8 battery problem? NO Q3 The voltage across the battery terminals is < 2V > 2V < 10V C1 Battery is dead. Replace or attempt to charge and try again Do not come on or turn off w/ key turn C2 Battery is low. Attempt to charge and try again Q4 battery terminal connections are Q5 Load test the battery. It Q6 The battery ground connection to the frame\chassis is: >10V Loose or corroded Tight and clean C3 Poor connection. Clean and tighten and try again fails passes C4 Defective battery. Replace and try again. Loose or corroded Tight and clean C3 Poor connection. Clean and tighten and try again Q8 battery problem? NO

Intelligent Interactive Automotive Service Manual Volume 5.4: No-Start Diagnostics (fuel injection only)

Improvements: Use Touch Screen Monitor External GUI with pictures for specific applications Check the voltage across the battery terminals. It is: Less than 2 volts More than 10 volts Between 2 and 10 volts

Q1 The car turns over Normally, no start Q25 What type of problem is it? (fuel / ignition) Not at all or slowly, lights come on Q25 What type of problem is it? (cranking) Q25 What type of problem is it? (battery related) Q25 What type of problem is it? fuel / ignition battery related Cranking continued Not at all or slowly, no lights come on

Q2 The voltage across the battery terminals is < 2V > 2V < 10V C2 Battery is dead. Replace or attempt to charge and try again C1 Battery is low. Attempt to charge and try again Q3 battery terminal connections are Q4 Load test the battery. It Q5 The battery ground connection to the frame\chassis is: >10V Loose or corroded Tight and clean C3 Poor connection. Clean and tighten and try again fails passes C4 Defective battery. Replace and try again. Loose or corroded Tight and clean C3 Poor connection. Clean and tighten and try again C13 Seek professional help. Continued (battery related)

Q6 Inspect, clean, and tighten the connection of the starter solenoid Does the car start? Yes C3 poor electrical contact connections Q7 bridge the starter solenoid terminal posts to bypass it. Does the car start? Yes C5 defective starter solenoid No Q8 Inspect starter cable connections. Tighten and clean if necessary. Does the car start? Q9 Remove and bench test the starter. Does it work? No Yes C3 Poor electrical contact connection. No Yes C6 Defective starter. Replace and try again C7 your engine may be locked up. Seek professional help Continued (cranking problem)

normally C8 Fuel delivery problem. Test the fuel pump and check for fuel line obstructions. Q10 Check the fuel pressure using the proper procedure for the vehicle. Is it to specifications? Yes C12 Spark is not reaching the combustion chamber due to faulty plugs/wires Q11 Inspect the condition of and connections to the ignition module. Test and replace if needed. Does the car start? Yes C9 Faulty ignition module No Q12 Inspect the condition of and connections to the ignition coil or coil pack. Test and replace if needed. Does the car start? Q13 Inspect the condition of and connections to the distributor, its cap, and its rotor button if so equipped. Clean, test, or replace if needed. Does the car start? No Yes C10 Faulty ignition coil/pack No Yes C11 Faulty distributor/distributor components C13 Seek professional help Q14 Inspect the condition of and connections to spark plug wires and spark plugs. Test and replace if needed. Does the car start? Yes No Continued (fuel / ignition problem)