- Remove the No. 6 (20A) fuse from the under-hood fuse/relay.
- Turn the ignition switch to start (III).
Does the engine crank?
YES – Go to step 3.
NO – Go to step 7.
- Check the engine cranking speed with the scan tool. Turn the engine cranking.
Is the engine cranking speed about 200 rpm?
YES – Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the starter. 
NO – Go to step 4.
- Turn the ignition switch OFF.
- Inspect the battery charging condition, poor connections or loose wires at the battery.
Was a problem found?
YES – Repair as necessary.
NO – Go to step 6.
- Check the engine oil viscosity.
Was a problem found?
YES – Replace as necessary.
NO – Substitute a known-good starter and recheck. If symptom/indication goes away, replace the original starter.
- Check the rotation sound of the starter.
Can the rotation sound of the starter be heard?
YES – Go to step 8.
NO – Go to step 11.
- Turn the ignition switch OFF.
- Remove the starter from the engine.
- Check the engagement of pinion and ring gear.
Is the engagement normal?
YES – Repair as necessary. (Pinion assembly or planetary gear.)
NO – Repair the engagement of pinion and ring gear or the shift lever.
- Inspect the battery charging condition, poor connections or loose wires at the battery.
Was a problem found?
YES – Repair as necessary.
NO – Go to step 12.