Preliminary Inspection

Verify customer complaint by operating suspected system. Visually inspect for obvious signs of mechanical and electrical damage. For mechanical damage, check for the following:

• Starter motor. See Figure.
• Flywheel ring gear.
• Seized engine.

For electrical damage, check for the following:

• Battery condition and state of charge.
• Starter motor.
• Fuse No. 3 of the Engine Management System (EMS) fuse box and fuse No. 5 of the engine compartment fuse box. See FUSES & CIRCUIT BREAKERS article in ELECTRICAL.
• High power protection module. See Figure.
• Starter Relay. See Figure.
• Ignition Switch. See Figure.
• Body Processor Module (BPM) and Engine Control Module (ECM). See Figure.
• Inspect for loose or corroded connection, damaged wiring harnesses and/or switches. Check for broken or partially broken wires inside insulation, which could cause system malfunction but prove good in a continuity/voltage check with system disconnected.
• Ensure any aftermarket electronic equipment is properly installed.

If a fault is found, repair as necessary. If no fault is found during a preliminary inspection, see SELF-DIAGNOSTIC SYSTEM  for additional information.