Starter Fails To Engage

if starter fails to engage check the following:

• Battery Discharged Or Faulty:  Charge battery or replace if necessary.
• Starting Circuit Wiring Faulty:  Test circuit or replace if necessary. See WIRING DIAGRAMS  .
• Starter Relay Faulty:  Test and replace relay if necessary. See STARTER RELAY  under TESTING.
• Ignition Switch Faulty:  Test switch or replace if necessary.
• Park/Neutral Position Switch (Auto Trans) Faulty Or Mis-Adjusted:  Test or replace switch if necessary.
• Clutch Interlock Switch (Man Trans) Faulty:  Test or replace switch if necessary.
• Starter Solenoid Faulty:  Test or replace starter assembly if necessary. See STARTER SOLENOID  under TESTING.
• Starter Assembly Faulty:  Check components, if check is ok, replace starter assembly.
• Faulty Teeth On Ring Gear:  Inspect teeth, rotate flywheel 360°, replace if damaged.
• PCM Double Start Override Output Failure:  Repair open circuit, if ok PCM may be defective.